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Lu Z, Chen Z, Liu Y, Hua X, Gao C, Liu J. Morphological Engineering of Filamentous Fungi: Research Progress and Perspectives. J Microbiol Biotechnol 2024; 34:1-9. [PMID: 38693049 DOI: 10.4014/jmb.2402.02007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 02/22/2024] [Accepted: 03/06/2024] [Indexed: 05/03/2024]
Abstract
Filamentous fungi are important cell factories for the production of high-value enzymes and chemicals for the food, chemical, and pharmaceutical industries. Under submerged fermentation, filamentous fungi exhibit diverse fungal morphologies that are influenced by environmental factors, which in turn affect the rheological properties and mass transfer of the fermentation system, and ultimately the synthesis of products. In this review, we first summarize the mechanisms of mycelial morphogenesis and then provide an overview of current developments in methods and strategies for morphological regulation, including physicochemical and metabolic engineering approaches. We also anticipate that rapid developments in synthetic biology and genetic manipulation tools will accelerate morphological engineering in the future.
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Affiliation(s)
- Zhengwu Lu
- College of Life Sciences, Linyi University, Linyi 276000, P. R. China
| | - Zhiqun Chen
- College of Life Sciences, Linyi University, Linyi 276000, P. R. China
| | - Yunguo Liu
- College of Life Sciences, Linyi University, Linyi 276000, P. R. China
| | - Xuexue Hua
- Shandong Fufeng Fermentation Co., Ltd., Linyi 276600, P. R. China
| | - Cuijuan Gao
- College of Life Sciences, Linyi University, Linyi 276000, P. R. China
| | - Jingjing Liu
- College of Life Sciences, Linyi University, Linyi 276000, P. R. China
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Pan Z, Wu J, Liu Y. Correction: Strengthening the primary health care for non-communicable disease prevention and control in the post-pandemic period: a perspective from China. Glob Health Res Policy 2023; 8:54. [PMID: 38111079 PMCID: PMC10729456 DOI: 10.1186/s41256-023-00343-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023] Open
Affiliation(s)
- Zhangyang Pan
- Global Health Research Center, Duke Kunshan University, Kunshan, Jiangsu, China
| | - Jing Wu
- The Center for Chronic Noncommunicable Diseases Prevention and Control, China Centers for Disease Control and Prevention, Beijing, China
| | - Yunguo Liu
- Global Health Research Center, Duke Kunshan University, Kunshan, Jiangsu, China.
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Ren M, Zhang T, Xu J, Qiao J, Qiao J, Zhan S, Qin J, Song D, Fang Y, Lin Y, Jiang X, Guo Y, Meng Q, Qian X, Liu Y, Chan SSC, Zhao F, Yip W, Wang H, Wang M, Yin H, Liu Z, Li N, Song X, Liu F, Jin Y, Liu F, Huang Y. Building quality primary health care development in the new era towards universal health coverage: a Beijing initiative. Glob Health Res Policy 2023; 8:53. [PMID: 38105284 PMCID: PMC10726680 DOI: 10.1186/s41256-023-00341-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023] Open
Abstract
Primary health care (PHC) is the most effective way to improve people's health and well-being, and primary care services should act as the cornerstone of a resilient health system and the foundation of universal health coverage. To promote high quality development of PHC, an International Symposium on Quality Primary Health Care Development was held on December 4-5, 2023 in Beijing, China, and the participants have proposed and advocated the Beijing Initiative on Quality Primary Health Care Development. The Beijing Initiative calls on all countries to carry out and strengthen 11 actions: fulfill political commitment and accountability; achieve "health in all policies" through multisectoral coordination; establish sustainable financing; empower communities and individuals; provide community-based integrated care; promote the connection and integration of health services and social services through good governance; enhance training, allocation and motivation of health workforce, and medical education; expand application of traditional and alternative medicine for disease prevention and illness healing; empower PHC with digital technology; ensure access to medicinal products and appropriate technologies; and last, strengthen global partnership and international health cooperation. The Initiative will enrich the content of quality development of PHC, build consensus, and put forward policies for quality development of PHC in China in the new era, which are expected to make contributions in accelerating global actions.
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Affiliation(s)
- Minghui Ren
- Department of Global Health, School of Public Health, Peking University, Beijing, China.
- Institute for Global Health, Peking University, Beijing, China.
| | - Tuohong Zhang
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Jin Xu
- China Centre for Health Development Studies, Peking University, Beijing, China
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Jianrong Qiao
- World Health Organization Representative Office in China, Beijing, China
| | - Siyan Zhan
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Jiangmei Qin
- China National Health Development Research Center, Beijing, China
| | - Daping Song
- China National Health Development Research Center, Beijing, China
| | - Yanru Fang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Yifang Lin
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaopeng Jiang
- World Health Organization Representative Office in China, Beijing, China
| | - Yan Guo
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Qingyue Meng
- China Centre for Health Development Studies, Peking University, Beijing, China
| | - Xu Qian
- School of Public Health, Fudan University, Shanghai, China
| | - Yunguo Liu
- Global Health Research Center, Duke Kunshan University, Kunshan, Jiangsu, China
| | - Sophia Siu Chee Chan
- School of Nursing, LKS Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong SAR, China
| | - Feng Zhao
- Health Nutrition and Population, South Asia Region, World Bank, Bangkok, Thailand
| | - Winnie Yip
- Department of Global Health and Population, Harvard T H Chan School of Public Health, Boston, MA, USA
| | - Hong Wang
- Bill & Melinda Gates Foundation, Beijing, China
| | - Minmin Wang
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Hui Yin
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Zuokun Liu
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Na Li
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Xinyi Song
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Fangfang Liu
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Yinzi Jin
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Fangjing Liu
- Department of Global Health, School of Public Health, Peking University, Beijing, China
| | - Yangmu Huang
- Department of Global Health, School of Public Health, Peking University, Beijing, China.
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Tang S, Wu C, Liu Y. Developing global health education in Chinese universities: challenges and opportunities. Lancet Reg Health West Pac 2023; 41:100940. [PMID: 38223400 PMCID: PMC10786646 DOI: 10.1016/j.lanwpc.2023.100940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 10/06/2023] [Indexed: 01/16/2024]
Affiliation(s)
- Shenglan Tang
- Duke Global Health Institute, Duke University, Durham, NC 27710, USA
- Global Health Research Center, Duke Kunshan University, Kunshan, Jiangsu 215316, China
- SingHealth Duke-NUS Global Health Institute, Duke-NUS, 169857, Singapore
| | - Chenkai Wu
- Global Health Research Center, Duke Kunshan University, Kunshan, Jiangsu 215316, China
| | - Yunguo Liu
- Global Health Research Center, Duke Kunshan University, Kunshan, Jiangsu 215316, China
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Pan Z, Wu J, Liu Y. Strengthening the primary health care for non-communicable disease prevention and control in the post-pandemic period: a perspective from China. Glob Health Res Policy 2023; 8:49. [PMID: 38031103 PMCID: PMC10685497 DOI: 10.1186/s41256-023-00336-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 11/22/2023] [Indexed: 12/01/2023] Open
Abstract
Non-communicable diseases (NCDs) have become the leading cause of deaths in China and many other countries worldwide. To call for actions in strengthening primary health care (PHC) and accelerate NCD prevention and control in the post-pandemic era in China, the 2023 Duke Kunshan Health Forum focused on innovative approaches and lessons learned during the pandemic that can be applied in addressing NCD challenges. In this article we summarize key points discussed by the participants in three areas: PHC as the foundation and ultimate solution for NCD prevention and control, post-pandemic opportunities to accelerate the NCD program with innovative approaches, and an action framework proposed by the Forum collaborators to address remaining challenges and achieve NCD control objectives in China. The core of the suggested action framework is to offer people-centered, lifetime, comprehensive, continued, and quality NCD prevention and control services, which rely on an integrated healthcare system connecting the primary, secondary, and tertiary levels of care. To achive this objective, six interconnected actions are recommended in the framework: prioritizing and integrating NCD in PHC and Universal Health Coverage (UHC) framework, engaging multiple stakeholders, directing resources to PHC for quality NCD services, leveraging advantages of new technology, encouraging the use of PHC and improving services, and strengthening best practice sharing.
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Affiliation(s)
- Zhangyang Pan
- Global Health Research Center, Duke Kunshan University, Kunshan, Jiangsu, China
| | - Jing Wu
- The Center for Chronic Noncommunicable Diseases Prevention and Control, China Centers for Disease Control and Prevention, Beijing, China
| | - Yunguo Liu
- Global Health Research Center, Duke Kunshan University, Kunshan, Jiangsu, China.
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Min D, Li F, Ali M, Zhang X, Liu Y. Application of methyl jasmonate to control chilling tolerance of postharvest fruit and vegetables: a meta-analysis and eliciting metabolism review. Crit Rev Food Sci Nutr 2023:1-14. [PMID: 37702765 DOI: 10.1080/10408398.2023.2258201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Chilling injury is one of the most significant limitations for low temperature storage of postharvest fruits and vegetables, causing quality deterioration and economic loss. Increasing studies indicated that methyl jasmonate (MeJA) is critical in regulating the postharvest fruit and vegetables chilling tolerance. Based on a meta-analysis, the review analyzed the action of exogenous MeJA application on the chilling index in postharvest fruit and vegetables and summarized MeJA's mechanisms for controlling postharvest chilling injury. The meta-analysis found that MeJA treatment remarkably inhibited postharvest fruit and vegetable chilling injury. Moreover, we concluded the following function mechanism of MeJA on postharvest fruit and vegetable chilling tolerance: (1) Enhancing membrane integrity and energy supply, (2) Increasing antioxidant activity, (3) Enhancing arginine pathway, (4) Enhancing sugar metabolism, (5) Regulating phenolic metabolism, (6) Activating CBF pathway, (7) Regulating HSP accumulation and expression, and (8) Crosstalk with phytohormone. Finally, we summarized the regulatory mechanisms of MeJA on postharvest fruit and vegetable biological processes at the transcriptional and post-translational levels.
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Affiliation(s)
- Dedong Min
- College of Life Sciences, Linyi University, Linyi, China
| | - Fujun Li
- College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Shandong, PR China
| | - Maratab Ali
- College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Shandong, PR China
- School of Food and Agricultural Sciences, University of Management and Technology, Lahore, Punjab Province, Pakistan
| | - Xinhua Zhang
- College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Shandong, PR China
| | - Yunguo Liu
- College of Life Sciences, Linyi University, Linyi, China
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Zhou Y, Zhai YJ, Jin QY, Liu YG, Li LB, Zhang P, Zhang S, Zhao HW, Sun LT. A compact radio-frequency ion source for high brightness and low energy spread negative oxygen ion beam production. Rev Sci Instrum 2023; 94:093301. [PMID: 37655989 DOI: 10.1063/5.0164485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 08/15/2023] [Indexed: 09/02/2023]
Abstract
A high brightness and low energy spread (∆E) ion source is essential to the production of a high-quality primary ion beam applied in secondary ion mass spectrometry (SIMS). A compact 13.56 MHz radio-frequency (RF) ion source with an external planar spiral antenna has been developed as a candidate ion source for the production of negative oxygen ion beams for SIMS application. This ion source is designed with a three-and-a-half-turn water-cooled planar antenna for RF power coupling, a multi-cusp magnetic field for effective plasma confinement, and a three-electrode extraction system. The experimental results show that more than 50 µA negative oxygen ion beams have been extracted, which consist of 56% O-, 25% O2-, and 19% O3-. The ion energy distribution of the negative oxygen ion beam exhibits a Gaussian distribution with a minimum ∆E of 6.3 eV. The brightness of the O- beam is estimated to be 82.4 A m-2 Sr-1 V-1. The simulation, design, and experimental study results of this RF ion source will be presented in this paper.
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Affiliation(s)
- Y Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Y J Zhai
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Q Y Jin
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Y G Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - L B Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - P Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - S Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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Wu C, Yan LL, Long Q, Liu Y, Tan J, Lou Z, Tang S. Trends in global health research among universities in China: a bibliometric analysis. Glob Health Res Policy 2023; 8:10. [PMID: 37024983 PMCID: PMC10078049 DOI: 10.1186/s41256-023-00295-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/23/2023] [Indexed: 04/08/2023] Open
Abstract
BACKGROUND There has been considerable progress in developing global health education and research in China. Nevertheless, evidence of the progress of Chinese universities' contributions to global health research is limited. More efforts are needed to depict the progress Chinese universities have collectively made in advancing the field of global health. This study aimed to examine Chinese universities' collective contributions to global health research by describing the longitudinal trends in global health research publications, uncovering research themes in global health, and exploring collaboration patterns. METHODS A comprehensive bibliometric analysis was conducted for original research studies of the ten founding members of the China Consortium of Universities for Global Health, one of the largest networks of global health research and education in China. RESULTS We found that (1) the number of research publications in the field of global health has steadily increased from 2014 to 2020, (2) non-communicable disease was the most popular research topic, accounting for over one-third of total publications, followed by maternal and child health and neurological and mental disorders and diseases, (3) less than one-fifth of papers involved primary data collection, with the majority of the study populations from low-income and lower-middle-income countries in Asia and Africa, and (4) a sizable collaboration network has been established with co-authors from over 200 oversea universities or organizations, with about one third from the US. CONCLUSIONS Despite a variety of challenges and barriers, Chinese universities have been playing an increasingly important role in global health research as assessed by peer-reviewed publications over the last decade. More concerted efforts by multiple stakeholders, including government, private sectors, funding agencies, academic institutions, and researchers, are needed to advance the development of global health research in China.
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Affiliation(s)
- Chenkai Wu
- Global Health Research Center, Duke Kunshan University, Academic Building 3038, No. 8 Duke Avenue, Kunshan, 215316, Jiangsu, China.
| | - Lijing L Yan
- Global Health Research Center, Duke Kunshan University, Academic Building 3038, No. 8 Duke Avenue, Kunshan, 215316, Jiangsu, China
- Duke Global Health Institute, Duke University, Durham, NC, USA
| | - Qian Long
- Global Health Research Center, Duke Kunshan University, Academic Building 3038, No. 8 Duke Avenue, Kunshan, 215316, Jiangsu, China
| | - Yunguo Liu
- Global Health Research Center, Duke Kunshan University, Academic Building 3038, No. 8 Duke Avenue, Kunshan, 215316, Jiangsu, China
| | - Jie Tan
- Global Health Research Center, Duke Kunshan University, Academic Building 3038, No. 8 Duke Avenue, Kunshan, 215316, Jiangsu, China
- School of Health Sciences, Wuhan University, Wuhan, Hubei, China
| | - Zhexun Lou
- Global Health Research Center, Duke Kunshan University, Academic Building 3038, No. 8 Duke Avenue, Kunshan, 215316, Jiangsu, China
| | - Shenglan Tang
- Global Health Research Center, Duke Kunshan University, Academic Building 3038, No. 8 Duke Avenue, Kunshan, 215316, Jiangsu, China
- Duke Global Health Institute, Duke University, Durham, NC, USA
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Zheng H, Zhang JW, Zhang T, Liu YG, Jiang ST, Zhang YS, Zhang L, Xu YY, Zhao HT, Lu X, Sang XT. [Application of augmented reality navigation in laparoscopic and robot-assisted liver surgery]. Zhonghua Wai Ke Za Zhi 2023; 61:431-436. [PMID: 36987677 DOI: 10.3760/cma.j.cn112139-20221012-00435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
In recent years, laparoscopic surgery and robotic surgery have been widely used, and various intraoperative image navigation systems have also developed rapidly. However, the liver itself has a complex vessel and duct system, which increase the difficulty of liver surgery. The augmented reality image navigation system combines the three-dimensional reconstructed image of the liver with the real liver anatomy, which presents the specific relationship between the tumor location and the surrounding vessels for the surgeon. Compared with other intraoperative image navigation methods, augmented reality has its unique advantages. This paper provides an overview of current advances in registration technology in augmented reality image navigation system, and focuses on its applications in liver surgery, including laparoscopic surgery and robotic surgery. Finally, the technological problems and difficulties still faced at present are summarized, and future directions worth studying in this field are proposed.
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Affiliation(s)
- H Zheng
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J W Zhang
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T Zhang
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y G Liu
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S T Jiang
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y S Zhang
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Zhang
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Y Xu
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H T Zhao
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Lu
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X T Sang
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
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Lin X, Bakyrbay S, Liu L, Tang X, Liu Y. Microbiota Succession and Chemical Composition Involved in Lactic Acid Bacteria-Fermented Pickles. Fermentation 2023. [DOI: 10.3390/fermentation9040330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Pickles are a type of traditional fermented vegetables in China. To ascertain the effect of different lactic acid bacteria on pickles, the chemical composition characteristics, flavor substances, and bacterial diversity of the pickles fermented by natural bacteria, Lactobacillus plantarum R5, Lactobacillus pentosus R8, and L. plantarum R5 plus L. pentosus R8 were investigated in this study. The results showed that Lactobacillus enhanced the decrease in pH, increase in total acid content, degradation of nitrite, and production of organic acid (lactic acid and malic acid) of fermented pickles. A total of 80 flavors were detected in the pickles fermented for 14 days, and esters in pickles fermented by Lactobacillus were more plentiful. Firmicutes emerged as the predominant microbial phyla. Amongst these, the commonly encountered microorganisms were Lactobacillus, unclassified Enterobacteriaceae, Pantoea, and Weissella. The multivariate statistical analysis further showed that Lactobacillus had a strong negative correlation with pH and a strong positive correlation with malic acid and lactic acid, and the microorganisms in pickles could acclimate to the changing fermentation environment. The insights gained from this study may be of assistance to us in obtaining new insights into the microbiota succession and chemical compounds involved in the pickles fermented by Lactobacillus.
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11
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Yang L, Chen K, Liu P, Kang Y, Shen S, Qu C, Gong S, Liu Y, Gao Y. Preparation of Nile tilapia skin collagen powder by low-temperature and comprehensive evaluation of hemostasis and wound healing. Int J Artif Organs 2023; 46:99-112. [PMID: 36468751 DOI: 10.1177/03913988221139883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nile tilapia (hereinafter referred to as tilapia) is a species with high economic value and extensive cultivation. In this study, the low-temperature Nile tilapia skin collagen powder (TSCP) was prepared by liquid nitrogen freeze pulverization. After physical and chemical analysis of its properties, it was found that its characteristics were similar to those of type I collagen. The three-dimensional helix structure of protein peptide is good and non denatured. It shows that cryogenic temperature guarantees the activity of TSCP. In addition, TSCP has good biocompatibility. Specifically, it has good blood compatibility, lacks cytotoxicity, will not cause intradermal stimulation and acute systemic toxicity, and has no obvious rejection after implantation. In the rat liver hemorrhage model and wound repair model, compared with the commercially available bovine collagen powder (BSCP), TSCP has better blood coagulation ability: the shortest hemostatic time (135 s) and wound healing efficiency: the wound healing is obvious on the 14th day. The results of this study indicate that the TSCP is an ideal candidate for hemostatic agents and wound healing dressings.
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Affiliation(s)
- Lintong Yang
- College of Life Sciences, Yantai University, Yantai, Shandong China
| | - Kaili Chen
- College of Life Sciences, Yantai University, Yantai, Shandong China
| | - Ping Liu
- College of Life Sciences, Yantai University, Yantai, Shandong China
| | - Yating Kang
- College of Life Sciences, Yantai University, Yantai, Shandong China
| | - Shengbiao Shen
- Yantai Lanchuang Biotechnology Co., Ltd., Yantai, Shandong China
| | - Chenglei Qu
- Yantai Lanchuang Biotechnology Co., Ltd., Yantai, Shandong China
| | - Shizhou Gong
- Yantai Lanchuang Biotechnology Co., Ltd., Yantai, Shandong China
| | - Yunguo Liu
- College of Life Sciences, Linyi University, Linyi, China
| | - Yonglin Gao
- College of Life Sciences, Yantai University, Yantai, Shandong China
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12
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Li M, Wang P, Huang C, Liu Y, Liu S, Zhang K, Cao J, Tan X, Liu S. Effect of dissolved humic acids and coated humic acids on tetracycline adsorption by K 2CO 3-activated magnetic biochar. Sci Rep 2022; 12:18966. [PMID: 36347872 PMCID: PMC9643364 DOI: 10.1038/s41598-022-22830-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 10/19/2022] [Indexed: 11/09/2022] Open
Abstract
Humic acids (HAs) widely exist in water environment, and has an important impact on the adsorption of pollutants. Herein, HAs (both dissolved and coated) was employed to assess the effect on the removal of the organic contaminant tetracycline (TC) by K2CO3 modified magnetic biochar (KMBC). Results showed that low concentration of dissolved HAs promoted TC removal, likely due to a bridging effect, while higher concentration of dissolved HAs inhibited TC adsorption because of the competition of adsorption sites on KMBC. By characterization analysis, coated HAs changed the surface and pore characteristics of KMBC, which suppressed the TC removal. In a sequential adsorption experiment involving dissolved HAs and TC, the addition of HAs at the end of the experiment led to the formation of HAs-TC ligands with free TC, which improved the adsorption capacity of TC. TC adsorption by KMBC in the presence of dissolved HAs and coated HAs showed a downward trend with increasing pH from 5.0 to 10.0. The TC adsorption process was favorable and endothermic, and could be better simulated by pseudo-second-order kinetics and Freundlich isotherm model. Hydrogen bonds and π-π interactions were hypothesized to be the underlying influencing mechanisms.
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Affiliation(s)
- Meifang Li
- grid.440660.00000 0004 1761 0083College of Environmental Science and Engineering, Central South University of Forestry and Technology, Tianxin District, Shaoshan South Road, Changsha, 410004 People’s Republic of China ,grid.440660.00000 0004 1761 0083Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, 410004 People’s Republic of China
| | - Ping Wang
- grid.440660.00000 0004 1761 0083College of Environmental Science and Engineering, Central South University of Forestry and Technology, Tianxin District, Shaoshan South Road, Changsha, 410004 People’s Republic of China ,grid.440660.00000 0004 1761 0083Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, 410004 People’s Republic of China
| | - Chenxi Huang
- grid.440660.00000 0004 1761 0083College of Environmental Science and Engineering, Central South University of Forestry and Technology, Tianxin District, Shaoshan South Road, Changsha, 410004 People’s Republic of China ,grid.440660.00000 0004 1761 0083Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, 410004 People’s Republic of China
| | - Yunguo Liu
- grid.67293.39College of Environmental Science and Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha, 410082 People’s Republic of China ,grid.67293.39Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Lushan South Road, Yuelu District, Changsha, 410082 People’s Republic of China
| | - Shaobo Liu
- grid.216417.70000 0001 0379 7164School of Architecture and Art, Central South University, Lushan South Road, Yuelu District, Changsha, 410083 People’s Republic of China
| | - Ke Zhang
- grid.261112.70000 0001 2173 3359Department of Chemistry and Chemical Biology, Northeastern University, 360 Huntington Ave, Boston, MA 02115 USA
| | - Jingxiao Cao
- grid.440660.00000 0004 1761 0083College of Environmental Science and Engineering, Central South University of Forestry and Technology, Tianxin District, Shaoshan South Road, Changsha, 410004 People’s Republic of China ,grid.440660.00000 0004 1761 0083Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, 410004 People’s Republic of China
| | - Xiaofei Tan
- grid.67293.39College of Environmental Science and Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha, 410082 People’s Republic of China ,grid.67293.39Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Lushan South Road, Yuelu District, Changsha, 410082 People’s Republic of China
| | - Shaoheng Liu
- grid.440778.80000 0004 1759 9670College of Chemistry and Material Engineering, Hunan University of Arts and Science, Dongting Avenue, Wuling District, Changde, 415000 Hunan People’s Republic of China
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Liu YG, Huang W, Wu Q, Liu JL, Zhang X, Zhou Y, Zhai YJ, Sun LT. Simulation of beam extraction and space charge effect in an electromagnetic isotope separator. Appl Radiat Isot 2022; 189:110448. [PMID: 36108533 DOI: 10.1016/j.apradiso.2022.110448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 08/23/2022] [Accepted: 08/29/2022] [Indexed: 11/26/2022]
Abstract
Space charge effect of intense ion beam has critical influence on separation efficiency in the electromagnetic isotope separator. In this paper, a ribbon beam extraction system with slit electrodes for an electromagnetic isotope separator was designed and studied. The extracted beam currents were varied from 10 to 40 mA and the corresponding extracted beam energies were 40 keV and 100 keV respectively. The simulated output beam density distributions were used in the subsequent multi species particle transmission simulation with the space charge effect included. The separated isotope beam spot distributions at the focal plane were simulated under different space charge compensation factors and thus the optimum operation gas pressures in vacuum box were roughly estimated. For the case of high intensity and high power isotope beam collection, an isotope collector with a deceleration electrode was proposed to mitigate the effect of high power beam bombardment and the resultant temperature rising on the collector surface.
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Affiliation(s)
- Y G Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - W Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Q Wu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - J L Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - X Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Y Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Y J Zhai
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Deng Y, Liu S, Liu Y, Tang Y, Dai M, Chen Q, Wang H. Efficient degradation of norfloxacin by carbonized polydopamine-decorated g-C 3N 4 activated peroxymonosulfate: Performance and mechanism. Chemosphere 2022; 306:135439. [PMID: 35752311 DOI: 10.1016/j.chemosphere.2022.135439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/08/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
The use of metal-free graphite carbon nitride (CN) to activate peroxymonosulfate (PMS) has attracted extensive attention for organic pollutants degradation. In this work, we prepared carbonized polydopamine-decorated g-C3N4 (CP-700) for activation of PMS to degrade norfloxacin (NOR). The CP-700 composite was obtained by using CN as a base material on which dopamine underwent an autopolymerization reaction to form a CN-PDA complex, followed by pyrolysis. The apparent porous structure and graphitization provided a large number of active sites for catalytic degradation, enabling CP-700 to exhibit excellent catalytic performance during PMS activation. The degradation of NOR was not hindered by sulfate radical (SO4•-) and hydroxyl radical (•OH). Singlet oxygen (1O2) and mediated electron transfer were ultimately identified as the primary mechanisms. According to the linear positive correlation (R2 = 0.9922) between the semi-quantitative carbonyl group (CO) and the reaction rate constant, it was determined that the carbonyl group served as the important active site. The excellent electron transfer ability of CP-700 was evidenced by electrochemical techniques and the electron transfer pathway in the system was that PMS was adsorbed on the CP-700 surface to form metastable complex, and then the electron transfer between NOR and metastable complex was achieved. Based on the non-radical pathway, CP-700/PMS system showed a high tolerance to solution pH (3.0-11.0) and inorganic anions. The cyclic degradation experiments indicated that the system maintained a high degradation capability without the addition of additional CP-700, elucidating its potential application in the degradation of organic pollutants in the water.
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Affiliation(s)
- Yuqi Deng
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, PR China
| | - Shaobo Liu
- College of Architecture and Art, Central South University, Changsha, 410083, PR China.
| | - Yunguo Liu
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, PR China
| | - Yetao Tang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Mingyang Dai
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, PR China
| | - Qiang Chen
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, PR China
| | - Huan Wang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, PR China
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Wang H, Liu S, Liu Y, Tang Y, Dai M, Chen Q, Deng Y. Fe 3N nanoparticles embedded in N-doped porous magnetic graphene for peroxymonosulfate activation: Radical and nonradical mechanism. Chemosphere 2022; 305:135317. [PMID: 35709841 DOI: 10.1016/j.chemosphere.2022.135317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/06/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
The persistence of pharmaceutical and personal care products (PPCPs) such as norfloxacin (NFX) poses a serious threat to the water environment, and the development of efficient and cost-effective advanced oxidation catalysts is an important step toward resolving this issue. Herein, Fe and N co-doped graphene (FeNGO) was synthesized from graphene oxide (GO), urea, and iron salt via simple impregnation pyrolysis, and applied for activating peroxymonosulfate (PMS) to degrade NFX. FeNGO possessed a two-dimensional porous sheet structure and was rich in defects, nitrogen species, and active sites. Compared with the control catalyst doped with N or Fe alone, FeNGO/PMS system showed the best degradation performance with 97.7% removal of NFX after 30 min, the rate constant was 7.1 and 1.7 times than that for NGO and FeGO, respectively. Fe3N was the main active site of FeNGO, and it is confirmed that singlet oxygen (1O2) and superoxide radical (O2•-) were the primary oxidation active species (ROS) during NFX degradation. The formation of 1O2 came from the transformation of O2•- and PMS decomposition. FeNGO showed strong pH adaptability, and also exhibited stale degradation performance in saliferous water matrices. It is believed that this work will offer theoretical and practical guidance for PMS activation by non-radical pathways.
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Affiliation(s)
- Huan Wang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
| | - Shaobo Liu
- School of Architecture and Art, Central South University, Changsha, 410083, China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
| | - Yetao Tang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Mingyang Dai
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
| | - Qiang Chen
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
| | - Yuqi Deng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
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16
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Huang D, Du L, Cheng M, Yin L, Xiao R, Chen S, Lei L, Chen Y, Wang G, Xu W, Liu Y. Nitrogen-doped nanocarbon derived from candle soot for persulfate activation on sulfamethoxazole removal: performance and mechanism. J Colloid Interface Sci 2022; 629:685-696. [DOI: 10.1016/j.jcis.2022.08.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/01/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022]
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17
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Li X, Li CL, Liu YG, Liu JY, Wang JF, Li ZM, Ma DY, Hu D. [The long-term efficacy of left cardiac sympathetic denervation in long QT syndrome]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:556-562. [PMID: 35705464 DOI: 10.3760/cma.j.cn112148-20211122-01009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the long-term efficacy and safety of left cardiac sympathetic denervation(LCSD) for long QT syndrome(LQTS) patients with either recurrence on drug therapy intolerance/refusal. Methods: This study was a retrospective cohort study. The cases selected from 193 patients with LQTS who were enrolled in the Chinese Channelopathy Registry Study from November 1999 to November 2012. This study selected 28 LQTS patients with either recurrence on drug therapy intolerance/refusal and underwent LCSD surgery in the Peking University People's Hospital or Beijing Tongren Hospital. The patients were allocated into 3 groups: high-risk group(n=13, baseline QTc ≥550 ms or symptomatic in the first year of life or highly malignant genetics); intermediate-risk group(n=10, 500 ms≤baseline QTc<550 ms, symptomatic after the first year and without highly malignant genetics); low-risk group(n=5, baseline QTc<500 ms, symptomatic after the first year and without highly malignant genetics). LCSD was performed with the traditional supraclavicular approach or video assisted thoracoscopic surgery (VATS). Patients were regularly followed up until 20 years after the surgery. Data were collected before and 1 year after surgery and at the last follow-up. Patients' electrocardiograph(ECG), cardiac events and surgery-related complications were recorded. Kaplan-Meier survival analysis was used to determine the cardiac event-free survival based on different risk stratification and genotypes. Results: A total of 28 LQTS patients, aged 20.5 (15.0, 37.5) and underwent LCSD surgery, were enrolled in this study, including 23(82.1%) women. There were 11(39.3%) patients treated with traditional approach while 17(60.7%) with VATS-LCSD. There were 19(67.9%) patients had positive genetic test results, including 4 LQT1, 12 LQT2, 1 LQT1/LQT2 mixed type, and 2 Jervell-Lange-Nielsen (JLN) syndrome. The median follow-up period was 189.3(138.7, 204.9) months. The dropout rate was 10.7%(3/28) while 3 patients in the intermediate-risk group were lost to follow-up. Horner syndrome occurred in 1 patient (in the high-risk group). Sudden cardiac deaths were observed in 3 (12.0%) patients (all in the high-risk group), and 12 patients (48.0%) had syncope recurrences (2 in low-risk group, 3 in intermediate-risk group and 7 in high-risk group). A significant reduction in the mean yearly episodes of cardiac events was observed, from (3.5±3.3) before LCSD to(0.2±0.1) at one year after LCSD and (0.5±0.8) at last follow up(P<0.001). The mean QTc was shortened from (545.7±51.2)ms before the surgery to (489.0±40.1)ms at the last follow-up (P<0.001). Among the 20 patients with basic QTc ≥500 ms and completing the follow-up, the QTc intervals of 11(55.0%) patients were shortened to below 500 ms. The event free survival rates for any cardiac events after LCSD decreased sequentially in the low-, intermediate- and high-risk groups, and the difference was statistically significant (χ²=7.24, log-rank P=0.026). No difference was found in the event free survival rates among LQT1, LQT2 and undefined gene patients (χ²=5.20, log-rank P>0.05). Conclusions: LCSD surgery can reduce the incidence of cardiac events and shorten the QTc interval in patients with LQTS after the long-term follow-up. LCSD surgery is effective and safe for patients with LQTS ineffective or intolerant to drug therapy. However, high-risk patients are still at a high risk of sudden death after surgery and should be actively monitored and protected by combined therapies.
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Affiliation(s)
- X Li
- Department of Cardiology, Peking University People's Hospital, Beijing 100044, China
| | - C L Li
- Department of Cardiology, Peking University People's Hospital, Beijing 100044, China
| | - Y G Liu
- Department of Cardiology, Peking University People's Hospital, Beijing 100044, China
| | - J Y Liu
- Department of Thoracic Surgery, Peking University People's Hospital, Beijing 100044, China
| | - J F Wang
- Heart Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Z M Li
- Department of Thoracic Surgery, Peking University People's Hospital, Beijing 100044, China
| | - D Y Ma
- Heart Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Dayi Hu
- Department of Cardiology, Peking University People's Hospital, Beijing 100044, China
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Zheng ZL, Cao J, Li YY, Luo TT, Zhu TH, Li SJ, Liu YG, Qiao TM, Yang CL, Qin GY, Jiang YR, Yi JM, Xiang L, Chen XY, Han S. Root Rot of Codonopsis tangshen Caused by Ilyonectria robusta in Chongqing, China. Plant Dis 2022; 106:PDIS09212080PDN. [PMID: 34894751 DOI: 10.1094/pdis-09-21-2080-pdn] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Z L Zheng
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - J Cao
- Chongqing Three Gorges Vocational College, Wanzhou, Chongqing, 404155, Chongqing, P.R. China
| | - Y Y Li
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - T T Luo
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - T H Zhu
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - S J Li
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - Y G Liu
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - T M Qiao
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - C L Yang
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - G Y Qin
- Chongqing Three Gorges Vocational College, Wanzhou, Chongqing, 404155, Chongqing, P.R. China
| | - Y R Jiang
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - J M Yi
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - L Xiang
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - X Y Chen
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
| | - S Han
- College of Forestry, Sichuan Agricultural University, Chengdu, Sichuan Province, 611130, Sichuan, P.R. China
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19
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Zhang XP, Cao XD, Dang QQ, Liu YG, Zhu XP, Xia JW. First Report of Fruit Rot Caused by Fusarium luffae in Muskmelon in China. Plant Dis 2022; 106:PDIS12212666PDN. [PMID: 34978876 DOI: 10.1094/pdis-12-21-2666-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- X P Zhang
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - X D Cao
- Yinan County Agricultural and Rural Bureau, Linyi, Shandong, 276300, China
| | - Q Q Dang
- Yutai County Bureau of Planning and Natural Resources, Jining, Shandong, 272000, China
| | - Y G Liu
- Shandong Provincial University Laboratory for Protected Horticulture, Weifang University of Science and Technology, Weifang, Shandong, 262700, China
| | - X P Zhu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - J W Xia
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong, 271018, China
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20
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Xu XL, Liu SY, Lv YC, Zeng Q, Liu YG, Yang CL. Leaf Blight on Photinia × fraseri Caused by Pestalotiopsis trachicarpicola in China. Plant Dis 2022; 106:1520. [PMID: 34664981 DOI: 10.1094/pdis-06-21-1351-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- X L Xu
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
- Forestry Research Institute, Chengdu Academy of Agricultural and Forestry Sciences, Chengdu, Sichuan 611130, China
| | - S Y Liu
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Y C Lv
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Q Zeng
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Y G Liu
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - C L Yang
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
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Li SP, Chang QQ, Ren XH, Luo NY, Huang HY, Wu DS, Liu YG, Liu JJ. [Induction of hepatocellular carcinoma in B6C3 (F1) mice chronicly exposed to trichloroethylene with enhanced acetylation of histone H2AK9ac and SET expression in the liver tissue]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:910-914. [PMID: 35164419 DOI: 10.3760/cma.j.cn121094-20201009-00562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To establish an animal model of trichloroethylene (TCE) -induced liver cancer following chronic exposure and to understand the changes in SET expression and histone acetylation, potentially serving as a molecular mechanism for TCE-induced hepatocarcinogenesis. Methods: B6C3 mice at 6 weeks were treated with TCE at a series of doses (500, 1000 and 2000 mg/kg) by gastric gavage, with corn oil used as the negative control and carbon tetrachloride (CCl(4)) as the positive control. The serum and liver were sampled for the determination of biochemical indexes and pathological examination after 56 weeks of chemical exposure. Western blot was used to determine the levels of SET, H2AK9ac and HDAC1 expression. Results: The overall survival rate of the mice in various groups was 90.4% (141/156) , with no statistical difference between groups (P>0.05) . Compared with the negative control, the organ coefficient for the liver in the high dose TCE group and the positive control group were significantly increased (P<0.05) . The levels of ALT, AST, LDH and BUN in the all the three TCE groups and the positive control were significantly higher than those in the negative control (P<0.01) . CREA levels in the 1000 and 2000 mg/kg TCE groups were significantly higher than those in the negative control (P<0.05) . Statistical increases in the incidence of hepatocellular carcinoma and the activities of ALT and AST in various doses of TCE-exposed mice as compared with the control were observed (P<0.01) , in a dose-dependent manner. In the 1000 and 2000 mg/kg of TCE treated mice, levels of SET and H2AK9ac were increased (P<0.05) , while HDAC1 was decreased (P<0.05) , Compared to the tissue adjacent to liver cancer, in the 1000 and 2000 mg/kg TCE groups, the levels of SET were increased (P<0.05) , while HDAC1 was decreased (P<0.05) , and H2AK9ac increased in the 2000 mg/kg group. Conclusion: The hepatocellular carcinoma mouse model induced by chronic exposure to trichloroethylene was successfully established, with enhanced SET protein expression and H2AK9ac in the hepatic tissue.
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Affiliation(s)
- S P Li
- Southern Medical University, School of Public Health Guangzhou, Guangzhou 510515, China Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Q Q Chang
- Southern Medical University, School of Public Health Guangzhou, Guangzhou 510515, China Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - X H Ren
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - N Y Luo
- Southern Medical University, School of Public Health Guangzhou, Guangzhou 510515, China Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - H Y Huang
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - D S Wu
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Y G Liu
- Southern Medical University, School of Public Health Guangzhou, Guangzhou 510515, China
| | - J J Liu
- Southern Medical University, School of Public Health Guangzhou, Guangzhou 510515, China Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
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Tang JY, He Z, Liu YG, Jia G, Liu GM, Chen XL, Tian G, Cai JY, Kang B, Zhao H. Effect of supplementing hydroxy selenomethionine on meat quality of yellow feather broiler. Poult Sci 2021; 100:101389. [PMID: 34428646 PMCID: PMC8385448 DOI: 10.1016/j.psj.2021.101389] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/11/2021] [Accepted: 07/20/2021] [Indexed: 01/24/2023] Open
Abstract
This study was conducted to evaluate the effect of supplementing hydroxy selenomethionine (OH-SeMet) on performance, selenium (Se) deposition in the breast muscle, quality and oxidative stability, and expression of selenoprotein encoding genes of breast meat of the native slow-growing yellow-feathered broiler birds. A total of 375 one-day-old local yellow male birds were randomly assigned into 5 dietary treatments, supplemented with Se 0.0, 0.2, 0.4, 0.6, and 0.8 mg/kg in the form of OH-SeMet. Each treatment consisted of 5 replicates and each replicate had 15 birds, the birds were fed on basal diet containing corn and soybean meal, and the experiment lasted for 63 d. The results showed that dietary Se supplementation linearly increased (P < 0.001) Se contents in both serum and muscle, no significant changes (P > 0.05) were observed on growth performance, yield of breast, meat color, and intramuscular fat deposition of the breast muscle. Dietary Se addition improved water-holding capacity, the pH24h value, and tenderness of breast muscle, evidenced by a linear decreases of shear force (P < 0.05), accompanied by lower thiobarbituric acid reactive substances and higher glutathione reductase activity. The mRNA abundance of selenoprotein encoding genes also responded to dietary Se levels. It is concluded that, dietary supplementation with OH-SeMet improved muscular Se deposition and meat quality of the native yellow birds, with enhanced antioxidant capability and regulation in selenogenome.
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Affiliation(s)
- J Y Tang
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Z He
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Y G Liu
- Adisseo Asia Pacific P/L, 188778, Singapore
| | - G Jia
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - G M Liu
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - X L Chen
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - G Tian
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - J Y Cai
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - B Kang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - H Zhao
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China.
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Tang Y, Liu Y, Chen Y, Zhang W, Zhao J, He S, Yang C, Zhang T, Tang C, Zhang C, Yang Z. A review: Research progress on microplastic pollutants in aquatic environments. Sci Total Environ 2021; 766:142572. [PMID: 33183825 DOI: 10.1016/j.scitotenv.2020.142572] [Citation(s) in RCA: 117] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 09/02/2020] [Accepted: 09/21/2020] [Indexed: 05/24/2023]
Abstract
The ubiquitous problems of microplastics in waters are receiving global attention as microplastics can harm aquatic organisms, and finally can accumulate in the human body through biological chain amplification. In addition, microplastics act as a carrier capable of carrying heavy metals, organics, which form complex pollutants. These new combinations of pollutants, once ingested by aquatic organisms, are amplified through the food chain and can have unpredictable ramifications for aquatic organisms and human beings. Therefore, human beings are not only the source of plastic pollution, but also the sink of microplastic pollution. Therefore, this study reviews the source and distribution of microplastics, and their combined ability with heavy metals, antibiotics, and persistent organic pollutants in aquatic environments. Furthermore, it describes the interaction between aquatic organisms and microplastics. Finally, some suggestions are put forward to promote the sustainable application of microplastics. This work provides theoretical guidance for combining microplastics with other pollutants in water, and the accumulation of microplastics in food chain.
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Affiliation(s)
- Yuanqiang Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Yu Chen
- School of Architecture, Hunan University, Changsha 410082, PR China.
| | - Wei Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Jianmin Zhao
- School of Architecture, Hunan University, Changsha 410082, PR China.
| | - Shaoyao He
- School of Architecture, Hunan University, Changsha 410082, PR China.
| | - Chunping Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, PR China.
| | - Tao Zhang
- Qingyuan Agricultural Science and Technology Extension Service Center, Guangdong Province, Qingyuan 511500, PR China
| | - Chunfang Tang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
| | - Chen Zhang
- Zhejiang Ocean University, Zhoushan 316000, PR China
| | - Zisong Yang
- College of Resources and Environment of Aba Teachers University, Wenchuan 623002, PR China
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Gong X, Huang D, Liu Y, Zou D, Hu X, Zhou L, Wu Z, Yang Y, Xiao Z. Nanoscale zerovalent iron, carbon nanotubes and biochar facilitated the phytoremediation of cadmium contaminated sediments by changing cadmium fractions, sediments properties and bacterial community structure. Ecotoxicol Environ Saf 2021; 208:111510. [PMID: 33120259 DOI: 10.1016/j.ecoenv.2020.111510] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/18/2020] [Accepted: 10/13/2020] [Indexed: 05/04/2023]
Abstract
Environment functional materials have been widely used, but whether their effects on the contaminated environment could facilitate phytoremediation is not yet well understood. In this study, starch stabilized nanoscale zerovalent iron (SN), multiwall carbon nanotubes (MW) and tea waste derived biochar (TB) were used to facilitate the phytoremediation of cadmium (Cd) contaminated sediments by Boehmeria nivea (L.) Gaudich. Results showed that 100 mg/kg SN, 500 mg/kg MW and 500 mg/kg TB facilitated phytoremediation, as evidenced by increasing Cd accumulation and/or promoting plant growth. These concentrations of materials increased the reducible fraction of Cd by 9-10% and decreased the oxidizable proportion of Cd by 48-52%, indicating the improvement of Cd bioavailability through converting the oxidizable Cd into reducible form. The activities of urease, phosphatase and catalase, which related to nutrient utilization and oxidative stress alleviation, increased by 20-24%, 25-26%, and 8-9% in the sediments treated with 500 mg/kg MW and 500 mg/kg TB, respectively. In addition, the 16S rRNA gene sequence results showed that these concentrations of materials changed the bacterial diversity. The abundance of Acidobacteria, Actinobacteria, Nitrospirae and Firmicutes were increased by some of the applied materials, which could promote plant growth, change Cd bioavailability and reduce Cd toxicity. These findings indicated that the applied environment functional materials could facilitate the phytoremediation of Cd contaminated environment by changing Cd fractions, sediments properties and bacterial community structure.
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Affiliation(s)
- Xiaomin Gong
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, China.
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Dongsheng Zou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, China
| | - Xi Hu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Lu Zhou
- School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Zhibin Wu
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, China
| | - Yang Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, China
| | - Zhihua Xiao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, Changsha 410128, China
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25
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Ding J, Xu W, Liu S, Liu Y, Tan X, Li X, Li Z, Zhang P, Du L, Li M. Activation of persulfate by nanoscale zero-valent iron loaded porous graphitized biochar for the removal of 17β-estradiol: Synthesis, performance and mechanism. J Colloid Interface Sci 2020; 588:776-786. [PMID: 33309141 DOI: 10.1016/j.jcis.2020.11.111] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 02/08/2023]
Abstract
In this work, the porosity, graphitization and iron doping of biochar were realized simultaneously by the pyrolysis of biomass and potassium ferrate (K2FeO4), then the iron-doped graphitized biochar was reduced to synthesize nanoscale zero-valent iron loaded porous graphitized biochar (nZVI/PGBC). 17β-estradiol (E2) is an environmental endocrine disruptor that can cause great harm to the environment in small doses. Experiments illustrated that nZVI/PGBC (100 mg/L) could completely remove E2 (3 mg/L) within 45 min by activating sodium persulfate (PS, 400 mg/L). The E2 removal efficiency of nZVI/PGBC was obviously superior to that of pristine biochar (BC), iron-doped graphitized biochar (Fe/GBC), nanoscale zero-valent iron (nZVI) and porous graphitized biochar (PGBC). The removal efficiency could be affected by reaction conditions, including reaction temperature, acidity, dosage of catalyst and oxidant and water matrix. Quenching experiments and electron spin resonance (ESR) demonstrated that SO4-· and HO were both responsible for E2 degradation. This study indicated that Fe0 and Fe2+ were the main catalytic active substances, while the catalytic ability of PGBC was not obvious. The reaction mechanism was proposed, that is, PS was activated by electrons provided by the redox reaction between Fe2+ and Fe3+, and PGBC acted as the carrier of nZVI, the adsorbent of E2 and the mediator of electron-transfer. This study demonstrates that nZVI/PGBC can be used as an effective activator for PS to remove organic pollutants in water.
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Affiliation(s)
- Jinglin Ding
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Weihua Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
| | - Shaobo Liu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; School of Architecture and Art, Central South University, Changsha, 410083, China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xin Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Zhongwu Li
- College of Resources and Environmental Sciences, Hunan Normal University, Changsha 410081, China
| | - Peng Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Li Du
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Meifang Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
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26
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Zhou Y, Liu S, Liu Y, Tan X, Liu N, Wen J. Efficient Removal 17-Estradiol by Graphene-Like Magnetic Sawdust Biochar: Preparation Condition and Adsorption Mechanism. Int J Environ Res Public Health 2020; 17:ijerph17228377. [PMID: 33198330 PMCID: PMC7696789 DOI: 10.3390/ijerph17228377] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 01/17/2023]
Abstract
The occurrence of environmental endocrine disrupting chemicals (EDCs) in aquatic environments has caused extensive concern. Graphene-like magnetic sawdust biochar was synthesized using potassium ferrate (K2FeO4) to make activated sawdust biochar and applied for the removal of 17-estradiol (E2). The characterization showed that the surface morphology of five graphene-like magnetic sawdust biochars prepared with different preparation conditions were quite different. The specific surface area and pore structure increased with the increment of K2FeO4 addition. The results have shown that graphene-like magnetic sawdust biochar (1:1/900 °C) had the best removal on E2. The experimental results indicated that pseudo-first-order kinetic model and the Langmuir model could describe the adsorption process well, in which the equilibrium adsorption capacity (qe,1) of 1:1/900 °C were 59.18 mg·g−1 obtained from pseudo-first-order kinetic model and the maximum adsorption capacity (qmax) of 1:1/900 °C were 133.45 mg·g−1 obtained from Langmuir model at 298K. At the same time, lower temperatures, the presence of humic acid (HA), and the presence of NaCl could be regulated to change the adsorption reaction in order to remove E2. Adsorption capacity was decreased with the increase of solution pH because pH value not only changed the surface charge of graphene-like magnetic sawdust biochar, but also affected the E2 in the water. The possible adsorption mechanism for E2 adsorption on graphene-like magnetic sawdust biochar was multifaceted, involving chemical adsorption and physical absorption, such as H-bonding, π-π interactions, micropore filling effects, and electrostatic interaction. To sum up, graphene-like magnetic sawdust biochar was found to be a promising absorbent for E2 removal from water.
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Affiliation(s)
- Yahui Zhou
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (Y.Z.); (X.T.)
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Shaobo Liu
- College of Architecture and Art, Central South University, Changsha 410083, China
- Correspondence: (S.L.); (Y.L.)
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (Y.Z.); (X.T.)
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
- Correspondence: (S.L.); (Y.L.)
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (Y.Z.); (X.T.)
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Ni Liu
- School of Tourism Management, Hunan University of Technology and Business, Changsha 410205, China;
| | - Jun Wen
- College of Agriculture, Guangxi University, Nanning 530005, China;
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27
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Chen Z, Liu Y, Liao S, Yi N, Hu Q. Treatment of adsorption of dioxane by using SiCNT toward efficient remediation of refractory organic contaminants from wastewater: DFT and DFTB-MD simulations. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Su CH, Jian XD, Zhang QB, Liu YG, Li HY, Liu JQ. [One case successfully rescued acute poisoning caused by misadministration of large amount of glufosinate]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:288-290. [PMID: 32447895 DOI: 10.3760/cma.j.cn121094-20190412-00149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To report a case of acute glufosinate-ammonium poisoning cause respiratory cardiac arrest and grass amine poisoning cases of successful rescue. Methods: The clinical data of a case of acute glufosinate-ammonium poisoning admitted to a third-class a hospital in April 2018 were analyzed and summarized. Results: The patient was poisoned by oral administration of a large amount of glufosinate-ammonium. Respiratory and cardiac arrest occurred during treatment and resuscitation was successful Later, the nervous system showed impaired function, The patients were treated with complete gastrointestinal cleansing, hemoperfusion, and the protection of important organs. Conclusion: For a large number of patients with oral glufosinate-ammonium poisoning, we should pay close attention to the damage of nervous system while taking active and conventional detoxification treatment.
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Affiliation(s)
- C H Su
- Emergency Department, Dezhou People's Hospital, Dezhou 253014, China
| | - X D Jian
- Emergency Department of Poisoning and Occupational Diseases, Qilu Hospital, Shandong University, Jinan 250000, China
| | - Q B Zhang
- Emergency Department, Dezhou People's Hospital, Dezhou 253014, China
| | - Y G Liu
- Emergency Department, Dezhou People's Hospital, Dezhou 253014, China
| | - H Y Li
- Lingcheng Town Health Hospital, Dezhou 253500, China
| | - J Q Liu
- Emergency Department, Dezhou People's Hospital, Dezhou 253014, China
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29
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Wang H, Zhou Y, Hu X, Guo Y, Cai X, Liu C, Wang P, Liu Y. Optimization of Cadmium Adsorption by Magnetic Graphene Oxide Using a Fractional Factorial Design. Int J Environ Res Public Health 2020; 17:E6648. [PMID: 32933079 PMCID: PMC7559111 DOI: 10.3390/ijerph17186648] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/04/2020] [Accepted: 09/09/2020] [Indexed: 11/17/2022]
Abstract
Graphene materials have attracted increasing interest in water remediation. In this study, magnetic graphene oxide (MGO) was prepared through the modified Hummers method and the adsorption behaviors of cadmium were investigated. Firstly, the sorption kinetics, isotherms, as well as the effects of pH were investigated. Then, fractional factorial design (FFD) was used to optimize the effects of pH, temperature, time, initial concentration of cadmium ion and NaCl on cadmium adsorption. The results indicate that MGO could effectively remove cadmium ions from an aqueous solution and the sorption data could be described well by pseudo-second-order and Freundlich models, showing that the adsorption rate of cadmium ions on MGO is multilayer adsorption and dominated by the chemical adsorption. According to the FFD results, the maximum adsorption capacity of cadmium ions was 13.169 mg/g under the optimum condition of pH value 8, 45 °C, contact time 60 min, initial cadmium concentration of 70 mg/L and NaCl concentration of 100 mg/L. Higher levels of the pH value, temperature and initial cadmium concentration are beneficial to the adsorption process. These results are important for estimating and optimizing the removal of metal ions by MGO composite.
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Affiliation(s)
- Hui Wang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (H.W.); (Y.Z.); (X.H.)
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yiming Zhou
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (H.W.); (Y.Z.); (X.H.)
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xinjiang Hu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (H.W.); (Y.Z.); (X.H.)
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yuan Guo
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China; (Y.G.); (C.L.)
| | - Xiaoxi Cai
- College of Art and Design, Hunan First Normal University, Changsha 410205, China;
| | - Chunjie Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China; (Y.G.); (C.L.)
| | - Ping Wang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (H.W.); (Y.Z.); (X.H.)
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
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30
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Deng J, Li X, Wei X, Liu Y, Liang J, Shao Y, Huang W, Cheng X. Different adsorption behaviors and mechanisms of a novel amino-functionalized hydrothermal biochar for hexavalent chromium and pentavalent antimony. Bioresour Technol 2020; 310:123438. [PMID: 32353770 DOI: 10.1016/j.biortech.2020.123438] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 06/11/2023]
Abstract
A novel amino-functionalized hydrothermal biochar modified with nitric acid and nicotinamide (NMSH) was prepared and applied to remove heavy metal in different systems. The study of batch adsorption found that NMSH had different adsorption behaviors for Cr(VI) and Sb(V), and different concentrations of heavy metal ions exhibited different coadsorption behaviors in mixed system. NMSH had great anti-interference ability to coexisting inorganic ion and humic substance. The maximum adsorption capacity of NMSH was 132.74 mg/g for Cr(VI), and 241.92 mg/g for Sb(V). Moreover, different interfering ions and matter had different effects on adsorption. The mechanism study found that the adsorption mechanism of NMSH involved multiple interactions, and the mechanisms were different. Some O-containing functional groups of NMSH could reduce Cr(VI) to Cr(III), but not Sb(V). NMSH had great removal efficiency and reusability performance, which suggested that NMSH had prospects for practical wastewater treatment.
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Affiliation(s)
- Jiaqin Deng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Xiaodong Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Xue Wei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Jie Liang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Yanan Shao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Wei Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Xiaojuan Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
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31
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Xu L, Zhong Y, Su ST, Liu YG, Lyu FN, Zhou XL, Ren JQ, Li P, Shi RF, Jiang Y, Fan JG, Mi YQ. [Study of reactive oxygen species and adiponectin for chronic HBV infection combined with nonalcoholic fatty liver diseases]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:247-253. [PMID: 32306658 DOI: 10.3760/cma.j.cn501113-20191231-00486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the application value of reactive oxygen species (ROS) and adiponectin (ADPN) in the judgment of liver inflammation in chronic hepatitis B virus infection combined with nonalcoholic fatty liver disease (NAFLD). Methods: A total of 159 cases with NAFLD (21 cases), chronic hepatitis B virus infection (57 cases), and chronic hepatitis B virus infection combined with NAFLD (81 cases) were collected between June 2016 to December 2018, and the visited patients diagnosis were confirmed by histopathological examination of the liver. ROS and ADPN level retained in serum was determined by enzyme-linked immunosorbent assay. Histopathological examination of liver tissue was used as the gold standard to discuss the diagnostic value of the serum in patients with chronic hepatitis B virus infection combined with NAFLD for the occurrence of nonalcoholic steatohepatitis. One-way analysis of variance was used for the comparison among multiple groups, and LSD-t test was used for pairwise comparison between groups. Measurement data for non-normal distributions were expressed as M (P25, P75). Comparisons between groups were performed using the Mann-Whitney U or Kruskal-Wallis H test. Chi-square test was used to compare the count data between groups. Correlation analysis was performed using Spearman correlation analysis. Histopathological grouping of liver tissue was used as the gold standard, and the area under the receiver operating characteristic curve was used to evaluate the diagnostic efficacy of the regression formula. Results: (1) In patients with chronic hepatitis B virus infection combined with NAFLD, the levels of ROS in the non-hepatic steatosis group and the mild hepatic steatosis group were significantly lower than those in the moderate and severe hepatic steatosis group, while the ADPN level in the non-hepatic steatosis group was significantly higher than liver steatosis group, P < 0.05. (2) The results of correlation analysis showed that ROS was significantly correlated with NAS score, change in the degree of fatty liver and lobular inflammation (all P < 0.05).There was a significant negative correlation between ADPN and the change in the degree of fatty liver (P < 0.05). (3) Logistic regression analysis results showed that the diagnostic formula for chronic hepatitis B virus infection combined with nonalcoholic steatohepatitis was 0.02 × controlled attenuation index + 0.584 × white blood cells/10(9) + 0.587 × ROS-10.982. The area under receiver operating characteristic curve of the subject was = 0.896. The sensitivity, specificity, positive and negative predictive value were 97.1%, 71.2%, 64.2%, and 97.9%. Conclusion: ADPN and ROS have certain reference value in differentiating the change in the degree of fatty liver and inflammation in chronic hepatitis B virus infection combined with NAFLD and the diagnostic formula has higher application value in the diagnosis and exclusion of chronic hepatitis B virus infection combined with nonalcoholic steatohepatitis.
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Affiliation(s)
- L Xu
- Tianjin Second People's Hospital, Tianjin Institute of Hepatology, Tianjin 300192, China
| | - Y Zhong
- Yanqing County Hospital of Beijing (Yanqing hospital, the Third Hospital of Peking University), Beijing 102100, China
| | - S T Su
- Tianjin Second People's Hospital, Tianjin Institute of Hepatology, Tianjin 300192, China
| | - Y G Liu
- Tianjin Second People's Hospital, Tianjin Institute of Hepatology, Tianjin 300192, China
| | - F N Lyu
- Tianjin Second People's Hospital, Tianjin Institute of Hepatology, Tianjin 300192, China
| | - X L Zhou
- Tianjin Second People's Hospital, Tianjin Institute of Hepatology, Tianjin 300192, China
| | - J Q Ren
- Tianjin Second People's Hospital, Tianjin Institute of Hepatology, Tianjin 300192, China
| | - P Li
- Tianjin Second People's Hospital, Tianjin Institute of Hepatology, Tianjin 300192, China
| | - R F Shi
- Tianjin Second People's Hospital, Tianjin Institute of Hepatology, Tianjin 300192, China
| | - Y Jiang
- Department of Gastroenterology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - J G Fan
- Center for Fatty Liver, Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University STCol of Medicine, Shanghai 200092, China
| | - Y Q Mi
- Tianjin Second People's Hospital, Tianjin Institute of Hepatology, Tianjin 300192, China
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Zhang W, Tan X, Gu Y, Liu S, Liu Y, Hu X, Li J, Zhou Y, Liu S, He Y. Rice waste biochars produced at different pyrolysis temperatures for arsenic and cadmium abatement and detoxification in sediment. Chemosphere 2020; 250:126268. [PMID: 32234619 DOI: 10.1016/j.chemosphere.2020.126268] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 06/11/2023]
Abstract
The effectiveness of rice waste biochars on heavy metal and metalloid abatement and detoxification was investigated using comprehensive studies based on As and Cd immobilization, bioaccumulation in tubifex, and microbial community changes in contaminated sediment. The remediation effects of biochars produced at different pyrolytic temperatures (400-700 °C) were evaluated. Bioaccumulation of heavy metal and metalloid in the tubifex tissue and change of indigenous microbial community under treatment of different biochars were assessed. Biochars produced at 700 °C exhibited greater effect on decreasing the concentrations of As and Cd in aqueous phase, and TCLP extractable and bioavailable metal(loid) in solid phase of sediment. The concentration of As and Cd in water phase decreased by 26%-89% and 22%-71% under the treatment of straw biochar, and decreased by 13%-92% and 5%-64% under the treatment of rice husk biochar, respectively. As and Cd contents in the tubifex tissue were positively correlated with their concentrations in aqueous phase. High-temperature biochars significantly reduced metal(loid) bioaccumulation in tubifex. The richness and biodiversity of microbial community were both greater in all biochars remediated sediment compared to non-treated sediment. These results indicated that rice waste biochars could effectively inhibit the bio-availability and toxicity of heavy metal and metalloid in sediment, and the higher-temperature biochar exhibited better performance.
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Affiliation(s)
- Wei Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China.
| | - Yanling Gu
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China
| | - Shaobo Liu
- College of Architecture and Art, Central South University, Changsha, 410083, PR China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Xinjiang Hu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, PR China
| | - Jiang Li
- College of Architecture and Art, Central South University, Changsha, 410083, PR China
| | - Yahui Zhou
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Sijia Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Yuan He
- Center of Changsha Public Engineering Construction, Changsha, 410013, China
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Li M, Liu Y, Yang C, Liu S, Tan X, He Y, Liu N, Zhou L, Cai X, Wen J. Effects of heteroaggregation with metal oxides and clays on tetracycline adsorption by graphene oxide. Sci Total Environ 2020; 719:137283. [PMID: 32109726 DOI: 10.1016/j.scitotenv.2020.137283] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/18/2020] [Accepted: 02/11/2020] [Indexed: 06/10/2023]
Abstract
Multiple nanoparticles (NPs) often coexist in water with contaminants, which inevitably affect the fate and transport of coexisted contaminants and other types of nanoparticles in actual water. This research was devoted to examine the adsorption of tetracycline (TC) on graphene oxide (GO) in the presence of different amounts of model engineered and natural NPs (m-NPs), including metal oxides (ZnO and Fe2O3), clays (kaolin and montmorillonite). The experimental results proved that the existence of m-NPs greatly enhanced the TC adsorption onto GO except for that at Fe2O3/GO = 10:1 and lengthened the adsorption equilibrium time. The enhanced adsorption amount of TC with increasing m-NPs/GO ratio was primarily due to the adsorption of TC onto m-NPs. In contrast, the slightly inhibitory effects by 10:1 Fe2O3/GO could be attributed to the blockage effect on GO surface by a small amount of Fe2O3. Compared with five m-NPs/adsorbents, m-NPs/GO had the greatest promoting efficiency on TC removal. Moreover, the heteroaggregation of GO with different m-NPs was studied in aqueous phase by microscopic, spectroscopic, and computational methods. Analysis showed that the electrostatic attraction between negatively charged GO and positively charged ZnO were likely to first heteroaggregate in binary systems of GO and ZnO, while GO were prone to homoaggregate owing to electrostatic repulsion with the same negatively charged montmorillonite (or kaolin). Besides, Fe2O3 tended to first homoaggregate and then heteroaggregate with GO. In summary, this report elucidated complex interactions between GO and m-NPs, which was crucial to fundamentally understand towards a predictive framework for describing the fate and migration of GO and m-NPs in actual water.
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Affiliation(s)
- Meifang Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China.
| | - Chunping Yang
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming 525000, PR China.
| | - Shaobo Liu
- School of Architecture and Art, Central South University, Changsha 410083, PR China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Yuan He
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Ni Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Lu Zhou
- School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Xiaoxi Cai
- College of Art and Design, Hunan First Normal University, Changsha 410205, PR China
| | - Jun Wen
- College of Agriculture, Guangxi University, Nanning 530005, PR China
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Liu N, Liu Y, Tan X, Li M, Liu S, Hu X, Zhang P, Dai M, Xu W, Wen J. Synthesis a graphene-like magnetic biochar by potassium ferrate for 17β-estradiol removal: Effects of Al 2O 3 nanoparticles and microplastics. Sci Total Environ 2020; 715:136723. [PMID: 32014761 DOI: 10.1016/j.scitotenv.2020.136723] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 12/23/2019] [Accepted: 01/14/2020] [Indexed: 06/10/2023]
Abstract
A graphene-like magnetic biochar (GLMB) was synthesized using lotus seedpod and potassium ferrate with simple step and applied for E2 adsorption. GLMB was characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscope (AFM), X-ray photoelectron spectroscopy (XPS), Raman, X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and BET surface area. Several common (solution pH, ionic strength, humic acid and foreign ions) and new (Al2O3 nanoparticles and microplastics (MPs)) water experiment conditions were investigated. Characterization results demonstrated that the sample was fabricated successfully and it possessed some graphene-like properties and a large surface area (828.37 m2/g). Adsorption results revealed that the pseudo-second-order kinetics and Langmuir isotherm models could provide a better description for E2 uptake behavior. The E2 adsorption capacity could be influenced by solution pH, ionic strength and SO42- ions, and the effect of humic acid and background electrolyte (Na+, K+, Ca2+, Mg2+, Cl-, NO3-, PO43-) could be neglected. The presences of Al2O3/MPs significantly decreased the time to reach adsorption equilibrium for E2 adsorption on GLMB, but had no obvious improvement or inhibiting effects on E2 removal when the adsorption reached equilibrium. The adsorption mechanism for E2 adsorption on GLMB was multiple, which involving π-π interactions, micropore filling effects, electrostatic interaction. The regeneration experiments showed that GLMB possessed a good regeneration performance. Based on the experimental results and comparative analysis with other adsorbents, GLMB was an economical, high-efficiency, green and recyclable adsorbent for E2 removal from aqueous solution.
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Affiliation(s)
- Ni Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Meifang Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Shaobo Liu
- School of Architecture and Art, Central South University, Changsha 410082, PR China; School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
| | - Xinjiang Hu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
| | - Peng Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Mingyang Dai
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Weihua Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Jun Wen
- College of Agriculture, Guangxi University, Nanning 530005, PR China
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Tam NTM, Liu YG, Bashir H, Zhang P, Liu SB, Tan X, Dai MY, Li MF. Synthesis of Porous Biochar Containing Graphitic Carbon Derived From Lignin Content of Forestry Biomass and Its Application for the Removal of Diclofenac Sodium From Aqueous Solution. Front Chem 2020; 8:274. [PMID: 32426321 PMCID: PMC7212363 DOI: 10.3389/fchem.2020.00274] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 03/20/2020] [Indexed: 11/18/2022] Open
Abstract
Porous biochar containing graphitic carbon materials have received great attention from various disciplines, especially for environmental pollutant treatment, due to their cost-effective and specific textural properties. This study exhibited a two-step strategy to compose lignin-porous biochar containing graphitic carbon (LPGC) from pitch pine sawdust and investigated its adsorptive removal for diclofenac sodium (DCF) from an aqueous solution. Sulfuric acid (H2SO4) was utilized to obtain lignin content from biomass and potassium ferrate (K2FeO4) and was adopted to fulfill the synchronous carbonization and graphitization of LPGC. Through slow pyrolysis in atmospheric N2 (900°C - 2 h), the structure of the as-prepared sample was successfully modified. Using SEM images, a stripped layer structure was observed on the H2SO4-treated sample for both one-step and two-step activated samples, indicating the pronounced effect of H2SO4 in the layering of materials. K2FeO4 acted as an activator and catalyst to convert biomass into the porous graphitic structure. The BET surface area, XRD and Raman spectra analyses demonstrated that LPGC possessed a micro/mesoporous structure with a relatively large surface area (457.4 m2 g-1) as well as the presence of a graphitic structure. Further adsorption experiments revealed that LPGC exhibited a high DCF adsorption capacity (qmax = 159.7 mg g-1 at 298 K, pH = 6.5). The effects of ambient conditions such as contact time, solution pH, temperature, ionic strength, electrolyte background on the uptake of DCF were investigated by a batch adsorption experiment. Results indicated that the experimental data were best fitted with the pseudo second-order model and Langmuir isotherm model. Furthermore, the adsorption of DCF onto the LPGC process was spontaneous and endothermic. Electrostatic interaction, H-bonding interaction, and π-π interaction are the possible adsorption mechanisms. The porous biochar containing graphitic carbon obtained from the lignin content of pitch pine sawdust may be a potential material for eliminating organic pollutants from water bodies.
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Affiliation(s)
- Nguyen Thi Minh Tam
- College of Environmental Science and Engineering, Hunan University, Changsha, China
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Changsha, China
| | - Yun-guo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, China
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Changsha, China
| | - Hassan Bashir
- College of Environmental Science and Engineering, Hunan University, Changsha, China
| | - Peng Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, China
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Changsha, China
| | - Shao-bo Liu
- School of Metallurgy and Environment, Central South University, Changsha, China
- School of Architecture and Art, Central South University, Changsha, China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha, China
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Changsha, China
| | - Ming-yang Dai
- College of Environmental Science and Engineering, Hunan University, Changsha, China
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Changsha, China
| | - Mei-fang Li
- College of Environmental Science and Engineering, Hunan University, Changsha, China
- Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Changsha, China
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Jia ZH, Tong AL, Sun LT, Liu YG, Liu JL, Wu Q, Fang X, Yang WS, Guo YH, Ritterbusch F, Lu ZT, Jiang W, Yang GM, Chen QW. An electromagnetic separation system for the enrichment of 39Ar. Rev Sci Instrum 2020; 91:033309. [PMID: 32259973 DOI: 10.1063/1.5128697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 02/18/2020] [Indexed: 06/11/2023]
Abstract
An isotope enrichment system for 39Ar has been developed at the Institute of Modern Physics, which is designed to increase the abundance of 39Ar in the incident sample gas. With intense Ar+ beams produced by a 2.45 GHz electron cyclotron resonance ion source and a high mass resolution spectrometer system, Ar isotopes are evidently separated on the target plane and selectively collected by an Al target. The separated Ar isotopes have been identified on the target plane, which is consistent with the simulations. According to the recent cross-checked results with atom trap trace analysis, a high enrichment factor of 39Ar has been successfully achieved. This paper will present the design and test results of this system.
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Affiliation(s)
- Z H Jia
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Amin L Tong
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y G Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J L Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Q Wu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W S Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y H Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - F Ritterbusch
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Z-T Lu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - W Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - G M Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Q W Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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37
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Li Y, Lin S, Wang Y, Mao X, Wu Y, Liu Y, Chen D. Broad-specific monoclonal antibody based IACs purification coupled UPLC-MS/MS method for T-2 and HT-2 toxin determination in maize and cherry samples. FOOD AGR IMMUNOL 2020. [DOI: 10.1080/09540105.2020.1724895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Yanshen Li
- College of Life Science, Yantai University, Yantai, People’s Republic of China
| | - Shaoxia Lin
- Departments of Clinical Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People’s Republic of China
| | - Yunhui Wang
- College of Life Science, Yantai University, Yantai, People’s Republic of China
| | - Xin Mao
- College of Life Science, Yantai University, Yantai, People’s Republic of China
| | - Yongning Wu
- China National Center for Food Safety Risk Assessment, Beijing, People’s Republic of China
| | - Yunguo Liu
- College of Life Sciences, Linyi University, Linyi, People’s Republic of China
| | - Daquan Chen
- School of Pharmacy, Yantai University, Yantai, People’s Republic of China
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Liu YG, Liu JL, Wu Q, Sun LT. Ion beam production with an antenna type 2.45 GHz electron cyclotron resonance ion source. Rev Sci Instrum 2020; 91:023301. [PMID: 32113396 DOI: 10.1063/1.5128393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/12/2020] [Indexed: 06/10/2023]
Abstract
A very compact permanent magnet 2.45 GHz electron cyclotron resonance ion source has been designed and developed for various purposes. The microwave power is coupled into the plasma chamber using the coaxial antenna instead of the waveguide, the magnetic field is produced by two NdFeB permanent magnet rings, and the diameter of the source body is only 10 cm. The beam current under different conditions was measured. A maximum of 5.8 mA H+/H2 +/H3 + mixed beam could be extracted from a 5.5 mm diameter extraction aperture.
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Affiliation(s)
- Y G Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J L Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Q Wu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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Liu N, Liu Y, Zeng G, Gong J, Tan X, Liu S, Jiang L, Li M, Yin Z. Adsorption of 17β-estradiol from aqueous solution by raw and direct/pre/post-KOH treated lotus seedpod biochar. J Environ Sci (China) 2020; 87:10-23. [PMID: 31791484 DOI: 10.1016/j.jes.2019.05.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 05/22/2019] [Accepted: 05/22/2019] [Indexed: 05/22/2023]
Abstract
Five biochars derived from lotus seedpod (LSP) were applied to examine and compare the adsorption capacity of 17β-estradiol (E2) from aqueous solution. The effect of KOH activation and the order of activation steps on material properties were discussed. The effect of contact time, initial concentration, pH, ionic strength and humic acid on E2 adsorption were investigated in a batch adsorption process. Experimental results demonstrated that the pseudo second-order model fitted the experimental data best and that adsorption equilibrium was reached within 20 hr. The efficiency of E2 removal increased with increasing E2 concentration and decreased with the increase of ionic strength. E2 adsorption on LSP-derived biochar (BCs) was influenced little by humic acid, and slightly affected by the solution pH when its value ranged from 4.0 to 9.0, but considerably affected at pH 10.0. Low environmental temperature is favorable for E2 adsorption. Chemisorption, π-π interactions, monolayer adsorption and electrostatic interaction are the possible adsorption mechanisms. Comparative studies indicated that KOH activation and the order of activation steps had significant impacts on the material. Post-treated biochar exhibited better adsorption capacity for E2 than direct treated, pre-treated, and raw LSP biochar. Pyrolyzed biochar at higher temperature improved E2 removal. The excellent performance of BCs in removing E2 suggested that BCs have potential in E2 treatment and that the biochar directly treated by KOH would be a good choice for the treatment of E2 in aqueous solution, with its advantages of good efficiency and simple technology.
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Affiliation(s)
- Ni Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Jilai Gong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Shaobo Liu
- School of Architecture and Art, Central South University, Changsha 410082, China; School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Luhua Jiang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Meifang Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Zhihong Yin
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, P.R. China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
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Thi Minh Tam N, Liu Y, Bashir H, Yin Z, He Y, Zhou X. Efficient Removal of Diclofenac from Aqueous Solution by Potassium Ferrate-Activated Porous Graphitic Biochar: Ambient Condition Influences and Adsorption Mechanism. Int J Environ Res Public Health 2019; 17:ijerph17010291. [PMID: 31906219 PMCID: PMC6981925 DOI: 10.3390/ijerph17010291] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 12/28/2019] [Accepted: 12/29/2019] [Indexed: 12/03/2022]
Abstract
Porous graphitic biochar was synthesized by one-step treatment biomass using potassium ferrate (K2FeO4) as activator for both carbonization and graphitization processes. The modified biochar (Fe@BC) was applied for the removal of diclofenac sodium (DCF) in an aqueous solution. The as-prepared material possesses a well-developed micro/mesoporous and graphitic structure, which can strengthen its adsorption capacity towards DCF. The experimental results indicated that the maximum adsorption capacity (qmax) of Fe@BC for DCF obtained from Langmuir isotherm simulation was 123.45 mg·L−1 and it was a remarkable value of DCF adsorption in comparison with that of other biomass-based adsorbents previously reported. Thermodynamic quality and effect of ionic strength studies demonstrated that the adsorption was a endothermic process, and higher environmental temperatures may be more favorable for the uptake of DCF onto Fe@BC surface; however, the presence of NaCl in the solution slightly obstructed DCF adsorption. Adsorption capacity was found to be decreased with the increase of solution pH. Additionally, the possible mechanism of the DCF adsorption process on Fe@BC may involve chemical adsorption with the presence of H-bonding and π–π interaction. With high adsorption capacity and reusability, Fe@BC was found to be a promising absorbent for DCF removal from water as well as for water purification applications.
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Affiliation(s)
- Nguyen Thi Minh Tam
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (Y.L.); (H.B.)
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
- Correspondence:
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (Y.L.); (H.B.)
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Hassan Bashir
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; (Y.L.); (H.B.)
| | - Zhihong Yin
- School of Resource & Environmental Sciences, Hubei Key Laboratory of Biomass-Resources Chemistry and Environmental Biotechnology, Wuhan University, Wuhan 430079, China;
| | - Yuan He
- Center of Changsha Public Engineering Construction, Changsha 410013, China; (Y.H.); (X.Z.)
| | - Xudong Zhou
- Center of Changsha Public Engineering Construction, Changsha 410013, China; (Y.H.); (X.Z.)
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Ji H, Han F, Peng S, Yu J, Li L, Liu Y, Chen Y, Li S, Chen Y. Behavioral Solubilization of Peanut Protein Isolate by Atmospheric Pressure Cold Plasma (ACP) Treatment. FOOD BIOPROCESS TECH 2019. [DOI: 10.1007/s11947-019-02357-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Jin QY, Zhou Y, Sun LT, Liu YG, Zhang XZ, Zhao HW. Production of O - and O 2 - beams with the negative ion source at Institute of Modern Physics. Rev Sci Instrum 2019; 90:113317. [PMID: 31779421 DOI: 10.1063/1.5128526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
A negative oxygen ion source is under development to produce O- and O2 - beams used for a secondary ion mass spectrometer at Institute of Modern Physics (IMP), and both filament and radio frequency (RF) schemes are tested. The filament driven ion source, which was initially designed for H- production, has a 10-pole multicusp plasma chamber, two sets of virtual magnetic filters, and a 3-electrode extraction system. The RF scheme, which is improved by changing a RF back plate from the filament ion source, has an external planar spiral RF antenna behind an AlN window. The RF power system consists of a continuous wave (CW) 13.56 MHz/2 kW power supply, a capacitive automatching network and a water-cooled flat RF antenna made from a 6-mm copper tube. Oxygen and carbon dioxide gases are used to produce O- and O2 - ion beams, and ion composition is analyzed by using a Wien filter. However, the lifetime of filaments sustains from several minutes to hours before fracture occurred while the RF one can work stably with no maintenance, and the experiment results will be given on O- ion production with two different technologies using our ion source test facility.
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Affiliation(s)
- Q Y Jin
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y G Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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Wang X, Gu Y, Tan X, Liu Y, Zhou Y, Hu X, Cai X, Xu W, Zhang C, Liu S. Functionalized Biochar/Clay Composites for Reducing the Bioavailable Fraction of Arsenic and Cadmium in River Sediment. Environ Toxicol Chem 2019; 38:2337-2347. [PMID: 31343777 DOI: 10.1002/etc.4542] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/09/2019] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Biochar has frequently been used for the treatment of heavy metal pollution in water and soil; its effect on contaminated sediments requires further research. To improve the ability of biochar to immobilize heavy metals in sediment, we prepared a functionalized biochar/attapulgite composite by pyrolysis of the clay attapulgite and zinc chloride-pretreated rice straw biomass. Compared with the original biochar, the biochar/attapulgite composite had a large increase in specific surface area, pore volume, oxygen-containing functional groups, and cation exchange capacity. Biochar effectively improved the dispersibility of attapulgite as a matrix. The results showed that the biochar/attapulgite composite effectively reduced the bioavailable fraction of arsenic (As) and cadmium (Cd) in river sediment, which was a great improvement compared with the raw biochar. After the sediment was treated with different biochar/attapulgite composites, the concentrations of As and Cd in the overlying water and the porewater, and the content of acid-extractable and toxicity characteristic leaching procedure (TCLP)-extractable As and Cd in the solid phase of the sediment decreased significantly. Both zinc chloride activation and attapulgite improved As and Cd immobilization in sediment when we used the biochar/attapulgite composite. The results suggest that biochar/attapulgite composite can be used as an efficient in situ sorbent amendment to improve the heavy metal immobilization ability of the sediment. Environ Toxicol Chem 2019;38:2337-2347. © 2019 SETAC.
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Affiliation(s)
- Xiaohua Wang
- College of Environmental Science and Engineering, Hunan University, Changsha, People's Republic of China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, People's Republic of China
- College of Architecture and Urban Planning, Hunan City University, Yiyang, People's Republic of China
| | - Yanling Gu
- College of Environmental Science and Engineering, Hunan University, Changsha, People's Republic of China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, People's Republic of China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha, People's Republic of China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, People's Republic of China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, People's Republic of China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, People's Republic of China
| | - Yahui Zhou
- College of Environmental Science and Engineering, Hunan University, Changsha, People's Republic of China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, People's Republic of China
| | - Xinjiang Hu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, People's Republic of China
| | - XiaoXi Cai
- College of Environmental Science and Engineering, Hunan University, Changsha, People's Republic of China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, People's Republic of China
- College of Art and Design, Hunan First Normal University, Changsha, People's Republic of China
| | - Weihua Xu
- College of Environmental Science and Engineering, Hunan University, Changsha, People's Republic of China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, People's Republic of China
| | - Chen Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, People's Republic of China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, People's Republic of China
| | - Shaoheng Liu
- College of Chemistry and Material Engineering, Hunan University of Arts and Science, Changde, Hunan, People's Republic of China
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Deng J, Li X, Wei X, Liu Y, Liang J, Tang N, Song B, Chen X, Cheng X. Sulfamic acid modified hydrochar derived from sawdust for removal of benzotriazole and Cu(II) from aqueous solution: Adsorption behavior and mechanism. Bioresour Technol 2019; 290:121765. [PMID: 31301570 DOI: 10.1016/j.biortech.2019.121765] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 07/01/2019] [Accepted: 07/04/2019] [Indexed: 06/10/2023]
Abstract
A novel hydrochar adsorbent derived from sawdust (SAHC) was prepared for highly efficient simultaneous removal of benzotriazole (BTA) and Cu(II) from aqueous solution. The prepared adsorbent was characterized by several methods such as SEM, FTIR, and XPS. Batch adsorption experiments showed that the maximum adsorption capacity of SAHC for BTA and Cu(II) was 159.91 and 298.86 mg/g, respectively. Additionally, the study of competitive adsorption showed that the adsorption of Cu(II) was barely affected by the existence of BTA while the BTA adsorption was significantly improved with the coexistence of Cu(II). The study of adsorption mechanism found that Cu(II) could chelate with BTA to form complex, and the complexing-bridging interaction improved BTA adsorption. SAHC exhibited high adsorption ability after six adsorption cycles, which indicated excellent stability and regeneration performance of SAHC. All the results suggested that SAHC could be a promising adsorbent for simultaneous removal of BTA and Cu(II) from wastewater.
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Affiliation(s)
- Jiaqin Deng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Xiaodong Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Xue Wei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Jie Liang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Ning Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Biao Song
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Xuwu Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Xiaojuan Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
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Liu S, Li M, Liu Y, Liu N, Tan X, Jiang L, Wen J, Hu X, Yin Z. Removal of 17β-estradiol from aqueous solution by graphene oxide supported activated magnetic biochar: Adsorption behavior and mechanism. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.05.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Chen ZH, Luo NY, Ren XH, Wang SQ, Huang C, Liu YG, Liu JJ. [Analysis of the potential role of SET in chromium-induced malignant transformation cells based on quantitative proteomics]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:169-173. [PMID: 31189235 DOI: 10.3760/cma.j.issn.1001-9391.2019.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate alteration of proteins profile in malignant transformation bronchial epithelial cells(16HBE-T) induced by hexavalent chromium[(Cr(VI))] and analyze the expression level of SET protein, then to provide some new insights for the carcinogenesis mechanism of Cr(VI). Methods: Total protein was extracted from 16HBE cells and was alkylated and desalinated before digested into peptides. The products were labeled with Tandem Mass Tag (TMT) and identified using LC-ESI-MS/MS. Results: A total of 3 517 proteins were found, expression differences greater than 1.5 or less 0.67 times were to found have 185 and 201 proteins, respectively. Gene enrichment analysis revealed that differential proteins were mainly involved in autophagy, DNA damage repair, RNA processing and other biological processes. Western blot results showed the expression level of SET was significantly increased while downregulated in histone H3K18/27 acetylation and p53 protein. Conclusion: Proteins involved in multiple biological processes altered in 16HBE-T cells and regulation mode of SET inhibiting histone H3K18/27 acetylation regulating transcriptional activity of p53 may paly an important role in Cr(VI)-association carcinogenesis.
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Affiliation(s)
- Z H Chen
- Southern Medical University, School of Public Health, Guangzhou 510515, China; Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - N Y Luo
- Southern Medical University, School of Public Health, Guangzhou 510515, China; Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - X H Ren
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - S Q Wang
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - C Huang
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Y G Liu
- Southern Medical University, School of Public Health, Guangzhou 510515, China
| | - J J Liu
- Southern Medical University, School of Public Health, Guangzhou 510515, China; Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
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47
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Tang Y, Liu Y, Zhang T, Li J, Wang X, Zhang W, Zeng G, Liu S, Guan L. Acute Toxicity of Divalent Mercury Ion to Anguilla japonica from Seawater and Freshwater Aquaculture and Its Effects on Tissue Structure. Int J Environ Res Public Health 2019; 16:ijerph16111965. [PMID: 31163600 PMCID: PMC6603874 DOI: 10.3390/ijerph16111965] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/20/2019] [Accepted: 05/25/2019] [Indexed: 12/26/2022]
Abstract
The acute toxicity of divalent mercury ion to Anguilla japonica from seawater and freshwater aquaculture was assessed. In particular, the effects of toxicity on the microstructures of the gill and liver tissues were examined using the hydrostatic method, without feeding, at a water temperature of 20 °C. The median lethal concentrations (LC50) of divalent mercury ion to fishes in seawater and freshwater over various durations were: 24 h = 1.637 and 1.428 mg/L; 48 h = 1.562 and 1.377 mg/L; 72 h = 1.530 and 1.284 mg/L; and 96 h = 1.442 and 1.228 mg/L. The safety mass concentrations were 0.1442 and 0.01228 mg/L, respectively. After exposure to divalent mercury ion, adhesion between the gill lamellae and massive cellular disintegration and necrotic shedding were observed in the gill tissue sections. The liver tissues underwent hyperemia and swelling, with the appearance of blood spots, swelling of the hepatocyte mitochondria, dilation of the rough endoplasmic reticulum, and intercellular inflation.
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Affiliation(s)
- Yuanqiang Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China.
| | - Tao Zhang
- Meijiang County Aquatic Technology Promotion Station, Meizhou 514000, China.
| | - Jiang Li
- School of Architecture and Art, Central South University, Changsha 410082, China.
| | - Xiaohua Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China.
- School of Architecture and Urban Planning, Hunan City University, Yiyang 413000, China.
| | - Wei Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China.
| | - Shaobo Liu
- School of Architecture and Art, Central South University, Changsha 410082, China.
| | - Lei Guan
- Meizhou Fisheries Research Institute, Meizhou 514000, China.
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Gong X, Huang D, Liu Y, Zeng G, Chen S, Wang R, Xu P, Cheng M, Zhang C, Xue W. Biochar facilitated the phytoremediation of cadmium contaminated sediments: Metal behavior, plant toxicity, and microbial activity. Sci Total Environ 2019; 666:1126-1133. [PMID: 30970478 DOI: 10.1016/j.scitotenv.2019.02.215] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 02/13/2019] [Accepted: 02/13/2019] [Indexed: 05/27/2023]
Abstract
Cadmium (Cd) contamination in river sediments becomes increasingly serious, and phytoremediation has been used to remediate Cd contaminated sediments, but the remediation efficiency needs to be improved. In this study, tea waste derived biochar (TB) was used to facilitate the phytoremediation of Cd contaminated sediments. Results showed that TB at 100, 500 and 1000 mg kg-1 increased Cd accumulation and translocation in ramie seedlings by changing Cd speciation in sediments and altering the subcellular distribution of Cd in plant cells. TB at low contents alleviated Cd induced toxicity in ramie seedlings by promoting plant growth and mitigating the oxidative stress. In addition, the activities of urease-, phosphatase-, and catalase-producing microbes in the Cd contaminated sediments were promoted by the application of TB. These findings demonstrated that biochar at low concentrations could improve the phytoremediation efficiency and mitigating Cd-induced toxicity to plants and microbes in Cd contaminated sediments. This study herein provides a novel technological application of waste biomass in controlling and mitigating risks of heavy metals.
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Affiliation(s)
- Xiaomin Gong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Sha Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Rongzhong Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Chen Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Wenjing Xue
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
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Liu S, Liu Y, Jiang L, Zeng G, Li Y, Zeng Z, Wang X, Ning Q. Removal of 17β-Estradiol from water by adsorption onto montmorillonite-carbon hybrids derived from pyrolysis carbonization of carboxymethyl cellulose. J Environ Manage 2019; 236:25-33. [PMID: 30711739 DOI: 10.1016/j.jenvman.2019.01.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 01/17/2019] [Accepted: 01/18/2019] [Indexed: 06/09/2023]
Abstract
In this work, we demonstrated the preparation of the carbonized montmorillonite/carboxymethyl cellulose (MMT/CMC) hybrids and their application as an adsorbent for efficient removal of 17β-Estradiol (βE2). X-ray diffractometer (XRD) results showed that CMC intercalation reached saturation at a CMC to MMT weight ratio of 1; transmission electron microscope (TEM) measurements clearly revealed that carbonization caused graphenes distribute on the MMT surfaces; pyrolysis temperature at 600 °C yielded novel MMT/CMC sample of high surface areas as reflected by Brunauer-Emmett-Teller (BET) surface area. The adsorbed amount of βE2 under various conditions decreased in the order MMT/CMC1:1(600) > MMT/CMC1:1(450) > MMT/CMC1:1(300) ∼ MMT/CMC2:1(600) ∼ MMT > MMT/CMC5:1(600). The removal of βE2 by MMT/CMC1:1(600) occurred very quickly, and the adsorption kinetics could be well fitted by the Ritchie nth-order kinetic model; the best-fit adsorption isotherm model was Freundlich model. The MMT/CMC1:1(600) also exhibited good regeneration performance after five adsorption/desorption cycles. The experimental results also showed that the adsorption of βE2 on the MMT/CMC1:1(600) composite could contribute to hydrophobic partitioning, π-π staking interaction, H-bond interaction, pore-filling effect and simple van der Waals interaction. This highly effective and novel adsorbent can be easily synthesized and regenerated, indicating its great potential in drinking and wastewater purification for endocrine disruptor compounds.
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Affiliation(s)
- Shaobo Liu
- School of Architecture and Art, Central South University, Changsha 410082, China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
| | - Luhua Jiang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Ya Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Zhiwei Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xiaohua Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Qimeng Ning
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
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50
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Huang B, Liu Y, Li B, Wang H, Zeng G. Adsorption mechanism of polyethyleneimine modified magnetic core–shell Fe3O4@SiO2 nanoparticles for anionic dye removal. RSC Adv 2019; 9:32462-32471. [PMID: 35529745 PMCID: PMC9072843 DOI: 10.1039/c9ra06299h] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/06/2019] [Indexed: 01/26/2023] Open
Abstract
In this paper, polyethyleneimine modified magnetic core–shell Fe3O4@SiO2 nanoparticles (Fe3O4@SiO2/PEI) were innovatively synthesized and investigated using various techniques such as TEM, TGA, FT-IR, XRD, VSM and XPS. The adsorption performance based on the removal of the anionic dyes Methyl orange and Congo red from aqueous solution was studied systematically. The results showed that the adsorption rate of anionic dyes MO and CR increased rapidly then decreased gradually as the pH increased, the adsorption capacity of Fe3O4@SiO2/PEI for MO was better than that for CR, and the maximum adsorption capacity for MO and CR was 231.0 mg g−1 at pH 4 and 134.6 mg g−1 at pH 6, respectively. The equilibrium adsorption capacities for MO and CR increased rapidly in the initial 40 min, and reached equilibrium in approximately 180 min, while the adsorption capacity for MB was relative low even negligible, demonstrating the strong adsorptive affinity of Fe3O4@SiO2/PEI toward anionic compounds. Both of the adsorption processes followed the pseudo-second-order kinetics model and the Freundlich isotherm model. The mechanism of adsorption was mainly related to electrostatic attraction and the number of active sites occupied by anionic dyes. This study provides valuable guidance and is an effective method for the removal of anionic dyes from aquatic environments. In this paper, polyethyleneimine modified magnetic core–shell Fe3O4@SiO2 nanoparticles (Fe3O4@SiO2/PEI) were innovatively synthesized and investigated using various techniques such as TEM, TGA, FT-IR, XRD, VSM and XPS.![]()
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Affiliation(s)
- Binyan Huang
- College of Life Sciences and Environment
- Hengyang Normal University
- Hengyang 421008
- P. R. China
- Institute of Bio-technology for Livestock
| | - Yunguo Liu
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
| | - Bin Li
- Changsha Environment Protection Agency
- Changsha 410001
- P. R. China
| | - Hui Wang
- College of Environmental Science and Engineering
- Central South University of Forestry and Technology
- Changsha 410004
- P. R. China
| | - Guangming Zeng
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University)
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