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Yuan D, Pang Y, Zhai L, Yan C, Kou Y. Exploring the combination characteristics of dissolved organic matter with erythromycin in a soil infiltration system. ENVIRONMENTAL TECHNOLOGY 2024; 45:3263-3275. [PMID: 37183650 DOI: 10.1080/09593330.2023.2214855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 04/10/2023] [Indexed: 05/16/2023]
Abstract
Erythromycin (ERY), as a common macrolides antibiotic, is widely used for sterilisation and disinfection of humans or livestock whose migration and transformation in the surface water environment are significantly related to dissolved organic matter (DOM). The characteristics of DOM can be greatly influenced by the complexation between ERY with itself in soil infiltration system. Using spectroscopic techniques (excitation-emission matrices, parallel factor analysis, Fourier infrared spectroscopy, and synchronous fluorescence spectroscopies) to explore the complexation properties of each DOM component with ERY in the system. The binding order of ERY with DOM functional groups was determined by two-dimensional correlation spectroscopy combined with FTIR. The amide I band v(C = O) exhibited stronger binding affinity. After the treatment, the DOM fluorescence intensity sharply decreased and the ERY concentration declined by 88.36%. Thus, synchronous degradation may occur between them. The result of synchronous fluorescence spectroscopy integrated with two-dimensional correlation spectroscopy indicated that the complexation sequencing and ability of DOM with ERY can be changed by a soil infiltration system. There are more binding sites exhibited in DOM with ERY in effluent than influent. A protein-like component of DOM showed priority binding order and more stable binding with ERY and had the highest Log KM value of 3.61. These results demonstrated that the binding of DOM with ERY in a soil infiltration system could take out most fluorescent DOM, and reduce the concentration and risk of ERY in the surface water body.
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Affiliation(s)
- Donghai Yuan
- Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control, Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
| | - Yiwen Pang
- Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control, Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
| | - Linxiao Zhai
- ZC Daring (Beijing) Smart City Science and Technology Development Co. Ltd, Beijing, People's Republic of China
| | - Chenling Yan
- Beijing Key Laboratory of Municipal Solid Waste Detection Analysis and Evaluation, Beijing Municipal Institute of City Management, Beijing, People's Republic of China
| | - Yingying Kou
- Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control, Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
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2
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Mu D, Wang C, Geng X, Zhao Y, Mohamed TA, Wu D, Wei Z. Effect of Maillard reaction based on catechol polymerization on the conversion of food waste to humus. CHEMOSPHERE 2024; 353:141560. [PMID: 38417496 DOI: 10.1016/j.chemosphere.2024.141560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/06/2024] [Accepted: 02/24/2024] [Indexed: 03/01/2024]
Abstract
The pollution and harm of food waste (FW) are increasingly concerned, which has the dual attributes of pollutants and resources. This study aimed to improve the synthesis efficiency of FW humic substances (HS), and investigating the effect of catechol on the formation mechanism and structure of humic acid (HA) and fulvic acid (FA). Results indicated that catechol incorporation could enable to exhibit higher HS yield and more complex structure, especially the maximum particle size of FA reached 4800 nm. This was due to the combination of catechol with multiple nitrogenous compounds, which accelerated molecular condensation. Spectroscopic scans analysis revealed that Maillard reaction occurs first. Subsequently, Maillard reaction products and amino acids were combined with different sites of catechol, which leads to the difference of molecular structure of HS. The structure of FA is characterized by an abundance of carboxyl and hydroxyl groups, whereas HA is rich in benzene and heterocyclic structures. The structural difference was responsible for the disparity in the functional properties of FA and HA. Specifically, the presence of amino, hydroxyl, pyridine, and carboxyl groups in FA contributes significantly to its chelating activity. This research provides an efficient and sustainable unique solution for the high-value of FW conversion, and provides evidence for understanding the structural evolution of HA and FA.
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Affiliation(s)
- Daichen Mu
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Chao Wang
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Xinyu Geng
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Yue Zhao
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Taha Ahmed Mohamed
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Di Wu
- College of Life Science, Northeast Forestry University, Harbin 150030, China
| | - Zimin Wei
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China.
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3
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Izadi S, Tashkhourian J, Alireza Hosseini Hafshejani S. Ecofriendly ratiometric colorimetric determination of mercury(II) ion in environmental water samples using gallic acid-capped gold nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123778. [PMID: 38134657 DOI: 10.1016/j.saa.2023.123778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 12/08/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
Today, the monitoring and determination of heavy metal pollutants in the environment is an essential requirement for the environmental and research communities. Mercury ion is one of the most hazardous heavy metals, and scientists are trying to develop new methods for its detection. In this study, a new colorimetric sensor based on aggregation gallic acid-capped gold nanoparticles (GA-AuNPs) for the determination of mercury ions in environmental water samples was presented. The green synthesized GA-AuNPs exhibited a sharp surface plasmon resonance peak at 515 nm. The addition of mercury ions changed the surface properties of GA-AuNPs, resulting in the formation of a new peak near 670 nm due to the aggregation of GA-AuNPs, and an obvious color change from red to purple occurred. Thus, mercury ions were detected based on the change in the absorbance ratio (A670/A515). The developed sensor can determine the mercury ions in the concentration range of 78.0 nM to 8.3 µM with a detection limit of 5.5 nM. Based on the Environmental Protection Agency (EPA) and the World Health Organization (WHO) reports, the amount of Hg2+ ions in fresh water should be between 10.0 and 30.0 nM. The results indicate that the developed sensor can detect and determine trace amounts of Hg2+ ions in environmental water samples.
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Affiliation(s)
- Sepehr Izadi
- Department of Chemistry, Faculty of Science, Shiraz University, Shiraz, Iran
| | - Javad Tashkhourian
- Department of Chemistry, Faculty of Science, Shiraz University, Shiraz, Iran.
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Hu ZT, Huo W, Chen Y, Zhang Q, Hu M, Zheng W, Shao Y, Pan Z, Li X, Zhao J. Humic Substances Derived From Biomass Waste During Aerobic Composting and Hydrothermal Treatment: A Review. Front Bioeng Biotechnol 2022; 10:878686. [PMID: 35646832 PMCID: PMC9133812 DOI: 10.3389/fbioe.2022.878686] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
Humic substances (HSs) occupy 80% of organic matter in soil and have been widely applied for soil remediation agents, potential battery materials, and adsorbents. Since the HS extraction rate is very low by microbial degradation in nature, artificial humification processes such as aerobic composting (AC) and hydrothermal treatment (HT) have attracted a great deal of attention as the most important strategies in HS production. This article aims to provide a state-of-the-art review on the development of conversion of biomass waste into HSs based on AC and HT for the first time in terms of mechanisms, characteristics of HSs’ molecular structure, and influencing factors. In addition, some differences based on the aforementioned information between AC and HT are reviewed and discussed in the conversion of biomass waste into HSs in a pioneering way. For biomass waste conversion, a feasible strategy on effective humification processes by combining AC with HT is proposed.
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Affiliation(s)
- Zhong-Ting Hu
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou, China
- Industrial Catalysis Institute, Zhejiang University of Technology, Hangzhou, China
| | - Weizhong Huo
- School of Environment, Tsinghua University, Beijing, China
| | - Yue Chen
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou, China
| | - Qiang Zhang
- Hangzhou Guotai Environmental Protection Technology Co. LTD, Hangzhou, China
| | - Mian Hu
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou, China
| | - Weicheng Zheng
- Hangzhou Research Institute of China Coal Technology & Engineering Group, Hangzhou, China
| | - Yuchao Shao
- School of Environment, Tsinghua University, Beijing, China
- *Correspondence: Yuchao Shao, ; Jun Zhao,
| | - Zhiyan Pan
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou, China
| | - Xiaonian Li
- Industrial Catalysis Institute, Zhejiang University of Technology, Hangzhou, China
| | - Jun Zhao
- Department of Biology, Institute of Bioresource and Agriculture, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
- *Correspondence: Yuchao Shao, ; Jun Zhao,
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Wu X, Wang J, Shen L, Wu X, Amanze C, Zeng W. Effect of bamboo sphere amendment on the organic matter decomposition and humification of food waste composting. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 133:19-27. [PMID: 34343864 DOI: 10.1016/j.wasman.2021.07.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/28/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
The aim of this study is to examine the effect of bamboo sphere on the organic matter decomposition and humification of food waste composting. Food waste composting were carried out on four treatments, namely control (CK), 3% (T1), 6% (T2) and 9% (T3) (w/w) bamboo sphere treatments. Results showed that adding bamboo sphere facilitated the organic matter decomposition and increased the seed germination index. The number of cells in T2 treatment was always the highest during the composting process. Furthermore, the final humic substances and humic acid contents increased by 41.08% and 68.3%, respectively, in 6% bamboo sphere treatment. Fourier transform infrared and excitation-emission matrix fluorescence spectroscopy analysis revealed that adding bamboo sphere accelerated the humification of composting with more aromatic structures and humic acid-like substances. GC-MS studies revealed that the compost products of 6% bamboo sphere treatment had more ring structures, and thus enhanced the humification.
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Affiliation(s)
- Xiaoyan Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Jingshu Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Li Shen
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China.
| | - Xueling Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China.
| | - Charles Amanze
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China.
| | - Weimin Zeng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China.
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Wu X, Wu X, Zhou X, Gu Y, Zhou H, Shen L, Zeng W. The roles of extracellular polymeric substances of Pandoraea sp. XY-2 in the removal of tetracycline. Bioprocess Biosyst Eng 2020; 43:1951-1960. [PMID: 32500436 DOI: 10.1007/s00449-020-02384-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/25/2020] [Indexed: 11/30/2022]
Abstract
In this study, the roles of extracellular polymeric substances (EPSs) excreted by Pandoraea sp. XY-2 in the removal of tetracycline (TC) were investigated. In the early stage, TC in the solution was mainly removed by the adsorption of EPSs, which accounted for 20% of TC. Thereafter, large amount of TC was transported into the intracellular and biodegraded. EPSs was extracted and the contents of polyprotein and polysaccharides reached their maximum values (30.84 mg/g and 11.15 mg/g) in the first four days. Fourier transform infrared spectroscopy analysis revealed that hydroxyl, methylidyne, methylene and amide I groups in EPSs participated in the adsorption of TC. Furthermore, three-dimensional excitation-emission matrix fluorescence spectroscopy analysis revealed that TC caused the quenching of EPSs fluorescent groups. The quenching mechanism was attributed to static quenching and protein-like substances in EPSs from Pandoraea sp. XY-2 dominated the TC adsorption process. Bioinformatic analysis of Pandoraea sp. XY-2 genome identified multiple genes involved in exopolysaccharide synthesis and EPSs formation. The insights gained in this study might provide a better understanding about the adsorption process of EPSs in tetracycline-contaminated environment.
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Affiliation(s)
- Xueling Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
- Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China
| | - Xiaoyan Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Xiangyu Zhou
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Yichao Gu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Han Zhou
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Li Shen
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
- Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China
| | - Weimin Zeng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China.
- Key Laboratory of Biometallurgy, Ministry of Education, Changsha, 410083, China.
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7
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Khil’ko SL, Rogatko MI, Makarova RA, Semenova RG. Tensiometric and Rheological Characteristics of Fractions of Humic and Hymatomelanic Acids. COLLOID JOURNAL 2020. [DOI: 10.1134/s1061933x2001007x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Liu Z, Delgado-Moreno L, Lu Z, Zhang S, He Y, Gu X, Chen Z, Ye Q, Gan J, Wang W. Inhibitory effects of dissolved organic matter on erythromycin bioavailability and possible mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2019; 375:255-263. [PMID: 31078061 DOI: 10.1016/j.jhazmat.2019.04.073] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/25/2019] [Accepted: 04/20/2019] [Indexed: 05/28/2023]
Abstract
Macrolides are widely used antibiotics with ubiquitous occurrence in aquatic environments. Unlike many emerging contaminants, macrolides are positively charged on their amine groups and are likely to interact with negative charge groups of dissolved organic matters (DOMs), which may alter macrolide bioaccumulation but yet to be explored. Here we evaluated the effects of different DOM (LeHA, PPHA, SRHA and SRFA) on erythromycin (an important macrolide) bioaccumulation into aquatic biota with 14C tracing. Results showed that ERY uptake in organisms was significantly inhibited by DOM (P < 0.05). In the presence of DOM at 20 mg L-1, the averaged equilibrium concentration (Ce) decreased by 28.1-40.6% for zebrafish and 10.9-25.8% for duckweed, corresponding to reductions in the bioconcentration factor (BCF) by 15.9-32.8% and 10.9-18.5%, respectively. Likely due to their higher carboxyl group content, SRHA and SRFA exhibited stronger inhibitory effects than LeHA or PPHA. The possible interactions between ERY and DOM were explored and results suggested that DOM inhibited ERY bioavailability by forming DOM-ERY complexes via ionic bonding of -COO- and ERY+, hydrogen bonding and hydrophobic partitioning. This study was the first to report on inhibitory effects of DOM on erythromycin bioavailability and has important implications for better understanding risks of macrolides.
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Affiliation(s)
- Zhiping Liu
- Institute of Nuclear Agricultural Sciences, Key laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC, Zhejiang University, Hangzhou, 310058, China
| | - Laura Delgado-Moreno
- Environmental Protection Department, Estación Experimental del Zaidín (CSIC), Granada, Spain
| | - Zhijiang Lu
- College of Environmental and Natural Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Sufen Zhang
- Institute of Nuclear Agricultural Sciences, Key laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC, Zhejiang University, Hangzhou, 310058, China
| | - Yan He
- College of Environmental and Natural Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xin Gu
- Institute of Nuclear Agricultural Sciences, Key laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC, Zhejiang University, Hangzhou, 310058, China
| | - Ziyuan Chen
- Institute of Nuclear Agricultural Sciences, Key laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC, Zhejiang University, Hangzhou, 310058, China
| | - Qingfu Ye
- Institute of Nuclear Agricultural Sciences, Key laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC, Zhejiang University, Hangzhou, 310058, China
| | - Jay Gan
- Department of Environmental Sciences, University of California, Riverside, California 92521, USA
| | - Wei Wang
- Institute of Nuclear Agricultural Sciences, Key laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC, Zhejiang University, Hangzhou, 310058, China.
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He C, Qu J, Yu Z, Chen D, Su T, He L, Zhao Z, Zhou C, Hong P, Li Y, Sun S, Li C. Preparation of Micro-Nano Material Composed of Oyster Shell/Fe 3O 4 Nanoparticles/Humic Acid and Its Application in Selective Removal of Hg(II). NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E953. [PMID: 31262004 PMCID: PMC6669493 DOI: 10.3390/nano9070953] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/16/2019] [Accepted: 06/27/2019] [Indexed: 12/17/2022]
Abstract
Micro-nano composite material was prepared to adsorb Hg(II) ions via the co-precipitation method. Oyster shell (OS), Fe3O4 nanoparticles, and humic acid (HA) were used as the raw materials. The adhesion of nanoparticles to OS displayed by scanning electron microscopy (SEM), the appearance of the (311) plane of standard Fe3O4 derived from X-ray diffraction (XRD), and the transformation of pore sizes to 50 nm and 20 μm by mercury intrusion porosimetry (MIP) jointly revealed the successful grafting of HA-functionalized Fe3O4 onto the oyster shell surface. The vibrating sample magnetometer (VSM) results showed superparamagnetic properties of the novel adsorbent. The adsorption mechanism was investigated based on X-ray photoelectron spectroscopy (XPS) techniques, which showed the process of physicochemical adsorption while mercury was adsorbed as Hg(II). The effects of pH (3-7), initial solution concentration (2.5-30 mg·L-1), and contact time (0-5 h) on the adsorption of Hg(II) ions were studied in detail. The experimental data were well fitted to the Langmuir isotherm equation (R2 = 0.991) and were shown to follow a pseudo-second-order reaction model (R2 = 0.998). The maximum adsorption capacity of Hg(II) was shown to be 141.57 mg·g-1. In addition, this new adsorbent exhibited excellent selectivity.
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Affiliation(s)
- Chuxian He
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
| | - Junhao Qu
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zihua Yu
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Daihuan Chen
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Tiantian Su
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Lei He
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zike Zhao
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Chunxia Zhou
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China
| | - Pengzhi Hong
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China
| | - Yong Li
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Shengli Sun
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China
| | - Chengyong Li
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China.
- Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China.
- Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China.
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Zheng S, Zhou Q, Chen C, Yang F, Cai Z, Li D, Geng Q, Feng Y, Wang H. Role of extracellular polymeric substances on the behavior and toxicity of silver nanoparticles and ions to green algae Chlorella vulgaris. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 660:1182-1190. [PMID: 30743913 DOI: 10.1016/j.scitotenv.2019.01.067] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/12/2018] [Accepted: 01/07/2019] [Indexed: 06/09/2023]
Abstract
The effect of extracellular polymeric substances (EPS), vital organic matters and nutrient elements in the natural environment, on the behavior and toxicology of silver nanoparticles (AgNPs) and ions remains ambiguous. In this study, the role of EPS on the toxicity of AgNPs and dissolved silver ions (from AgNO3) to a green algae Chlorella vulgaris was investigated. After the removal of EPS, algae accumulated more silver, about 7.41- and 1.25-fold of those in the algae with EPS for AgNPs and AgNO3 treatments, respectively. The large amount of accumulated silver was bound to the algal cell surface for AgNPs treatment and was internalized in the algae for AgNO3 treatment, irrespective of the presence of EPS in algae. After exposure to AgNPs, the ruffles in the surfaces of algal cells were filled by AgNPs, and almost invisible. FTIR showed that for both AgNPs and AgNO3, the aldehyde groups on the cell surface were oxidized to carboxyl groups by silver ions, irrespective of the presence of EPS in algal cells, indicating that silver ions were released from the oxidization of AgNPs and reacted with algal cells. The content of chlorophyll showed that AgNPs depressed algal growth more remarkably than did AgNO3, independent of the presence of EPS in algae, suggesting that AgNPs had greater toxic effects on algae than did silver ions. The findings suggest that the barrier effect of EPS gave nanoparticles an extraordinary edge over ions, but EPS had no discerning effect on the interaction of algal cells with the silver ions released from AgNPs and AgNO3, and also on the effect of AgNPs and AgNO3 on algal growth.
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Affiliation(s)
- Shimei Zheng
- College of Chemistry and Chemical and Environmental Engineering, Weifang University, Weifang 261061, China
| | - Qixing Zhou
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China.
| | - Cuihong Chen
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Fengxia Yang
- Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China
| | - Zhang Cai
- College of Earth and Mineral Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Dan Li
- College of Chemistry and Chemical and Environmental Engineering, Weifang University, Weifang 261061, China
| | - Qijin Geng
- College of Chemistry and Chemical and Environmental Engineering, Weifang University, Weifang 261061, China.
| | - Yimin Feng
- College of Chemistry and Chemical and Environmental Engineering, Weifang University, Weifang 261061, China
| | - Huiqin Wang
- College of Chemistry and Chemical and Environmental Engineering, Weifang University, Weifang 261061, China
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11
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Ali K, Ahmed B, Khan MS, Musarrat J. Differential surface contact killing of pristine and low EPS Pseudomonas aeruginosa with Aloe vera capped hematite (α-Fe2O3) nanoparticles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 188:146-158. [DOI: 10.1016/j.jphotobiol.2018.09.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 09/19/2018] [Accepted: 09/21/2018] [Indexed: 12/21/2022]
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12
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Deng J, Liu Y, Liu S, Zeng G, Tan X, Huang B, Tang X, Wang S, Hua Q, Yan Z. Competitive adsorption of Pb(II), Cd(II) and Cu(II) onto chitosan-pyromellitic dianhydride modified biochar. J Colloid Interface Sci 2017; 506:355-364. [DOI: 10.1016/j.jcis.2017.07.069] [Citation(s) in RCA: 208] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 07/16/2017] [Accepted: 07/17/2017] [Indexed: 10/19/2022]
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13
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Wang S, Liu Y, Fan Q, Zhou A, Fan L, Mu Y. Removal of Hg(II) from aqueous solution using sodium humate as heavy metal capturing agent. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 74:2946-2957. [PMID: 27997404 DOI: 10.2166/wst.2016.466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An environmental friendly and economic natural biopolymer-sodium humate (HA-Na) was used to capture Hg(II) from aqueous solutions, and the trapped Hg(II) (HA-Na-Hg) was then removed by aluminium coagulation. The best Hg(II) capturing performance (90.60%) was observed under the following conditions: initial pH of 7.0, coagulation pH of 6.0, HA-Na dosage of 5.0 g L-1, Al2(SO4)3.18H2O dosage of 4.0 g L-1, initial Hg(II) concentration of 50 mg L-1 and capturing time of 30 min. The HA-Na compositions with the molecular weight beyond 70 kDa showed the most intense affinity toward Hg(II). The results showed that the reaction equilibrium was achieved within 10 min (pH 7.0), and could be well fitted by the pseudo-second-order kinetics model. The capturing process could be well described by the Langmuir isotherm model and the maximum capturing capacity of Hg(II) was high up to 9.80 mg g-1 at 298 K (pH 7.0). The Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis showed that the redox reaction between Hg(II) and HA-Na and the coordination reaction of carboxyl and hydroxy groups of HA-Na with Hg(II) were responsible for Hg(II) removal. The successive regeneration experiment showed that the capturing efficiency of humates for Hg(II) was maintained at about 51% after five capture-regeneration recycles.
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Affiliation(s)
- Shixiang Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China E-mail:
| | - Yong Liu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China E-mail: ; Key Laboratory of Treatment for Special Wastewater of Sichuan Province Higher Education System, Sichuan, Chengdu 610066, China
| | - Qin Fan
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China E-mail:
| | - Anlan Zhou
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China E-mail:
| | - Lu Fan
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China E-mail:
| | - Yulan Mu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China E-mail:
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Sequestration of nanoparticles by an EPS matrix reduces the particle-specific bactericidal activity. Sci Rep 2016; 6:21379. [PMID: 26856606 PMCID: PMC4809067 DOI: 10.1038/srep21379] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 01/22/2016] [Indexed: 01/01/2023] Open
Abstract
Most artificial nanomaterials are known to exhibit broad-spectrum bactericidal activity; however, the defence mechanisms that bacteria use based on extracellular polymeric substances (EPS) to detoxify nanoparticles (NPs) are not well known. We ruled out the possibility of ion-specific bactericidal activity by showing the lack of equivalent dissolved zinc and silicon toxicity and determined the particle-specific toxicity of ZnO and SiO2 nanoparticles (ZnONPs/SiO2NPs) through dialysis isolation experiments. Surprisingly, the manipulation of the E. coli EPS (i.e., no EPS manipulation or EPS removal by sonication/centrifugation) showed that their particle-specific bactericidal activity could be antagonized by NP-EPS sequestration. The survival rates of pristine E. coli (no EPS manipulation) reached 65% (ZnONPs, 500 mg L(-1)) and 79% (SiO2NPs, 500 mg L(-1)), whereas survival rates following EPS removal by sonication/centrifugation were 11% and 63%, respectively. Transmission electron microscopy (TEM) combined with fluorescence micro-titration analysis and Fourier-transform infrared spectroscopy (FTIR) showed that protein-like substances (N-H and C-N in amide II) and secondary carbonyl groups (C=O) in the carboxylic acids of EPS acted as important binding sites that were involved in NP sequestration. Accordingly, the amount and composition of EPS produced by bacteria have important implications for the bactericidal efficacy and potential environmental effects of NPs.
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Pouya ES, Abolghasemi H, Esmaieli M, Fatoorehchi H, Hashemi SJ, Salehpour A. Batch adsorptive removal of benzoic acid from aqueous solution onto modified natural vermiculite: Kinetic, isotherm and thermodynamic studies. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2015.06.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Formation of sandwich structure through ion adsorption at the mineral and humic interfaces: A combined experimental computational study. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.03.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Luo Y, Shen S, Luo J, Wang X, Sun R. Green synthesis of silver nanoparticles in xylan solution via Tollens reaction and their detection for Hg(2+). NANOSCALE 2015; 7:690-700. [PMID: 25429650 DOI: 10.1039/c4nr05999a] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
This work reported a facile and green method to prepare highly stable and uniformly distributed Ag nanoparticles (AgNPs), in which a biopolymer xylan was used as the stabilizing and reducing agent via the Tollens reaction under microwave irradiation. Different variables were evaluated to optimize the reaction conditions. Complete characterization was performed using UV-Vis, XRD, TEM, size distribution analysis and XPS. The results revealed that AgNPs were well dispersed with diameters of 20-35 nm due to the packing of xylan. The optimal conditions were as follows: microwave irradiation temperature was 60-70 °C, microwave power was 800 W, microwave time was 30 min, the ratio of xylan to AgNO3 was 50 mg: 0.13 mmol, and ammonia concentration was 2%. In addition, the AgNPs were collected via high-speed centrifugal separation, and the supernatant was tested by HPAEC, GPC, FT-IR, and NMR. By comparing the structure of xylan before and after the reaction, the reaction mechanism was discussed. It was noted that the xylan-AgNPs composites showed high selectivity and sensitivity for Hg(2+) detection. The other 15 metal ions used had no obvious effect on the detection of Hg(2+), and the limit of detection (LOD) was 4.6 nM, which is lower than the allowed maximum level of 30 nM for drinking water by WHO. In addition, the xylan-AgNPs composites can be applied for Hg(2+) detection in real water samples. This study provides a novel way for the high-value utilization of a rich biomass resource, and a green method for the synthesis of AgNPs for the selective and sensitive detection of harmful heavy metals.
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Affiliation(s)
- Yuqiong Luo
- State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou 510640, China.
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do Nascimento FH, Masini JC. Influence of humic acid on adsorption of Hg(II) by vermiculite. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2014; 143:1-7. [PMID: 24824335 DOI: 10.1016/j.jenvman.2014.04.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 04/15/2014] [Accepted: 04/16/2014] [Indexed: 06/03/2023]
Abstract
Geochemical mobility of Hg(II) species is strongly affected by the interactions of these compounds with naturally occurring adsorbents such as humic acids, clay minerals, oxides, etc. Interactions among these sorbents affect their affinity for Hg(II) and a full understanding of these processes is still lacking. The present work describes the influence of a humic acid (HA) sample on the adsorption of Hg(II) by vermiculite (VT). Adsorption isotherms were constructed to evaluate the affinity of Hg(II) by VT, HA, VT modified with humic acid (VT-HA), and VT-HA in presence of soluble humic acid (VT-HA + HA). All experiments were made at pH 6.0 ± 0.1 in 0.02 M NaNO3 and 25.0 ± 0.5 °C for initial Hg(II) concentrations from 1.0 to 100 μM. Determinations of Hg(II) were made by square wave voltammetry automated by sequential injection analysis, an approach that enables the determination of the free plus labile fractions of Hg(II) in HA suspensions without the need for laborious separation steps. The adsorption isotherms were fitted to Langmuir and Freundlich equations, showing that HA was the material with the higher adsorption capacity (537 ± 30 μmol g(-1)) in comparison with VT and VT-HA (44 ± 3 and 51 ± 11 μmol g(-1), respectively). Adsorption order was HA >> VT-HA + HA > VT = VT-HA. At pH 6.0 the interaction of HA with VT is weak and only 14% of C initially added to the suspension was effectively retained by the mineral. Desorption of Hg(II) in acidic medium (0.05 M HCl) was higher in binary (VT-HA) and ternary (VT-HA + HA) systems in comparison with that of VT and HA alone, suggesting that interactions between VT and HA are facilitated in acidic medium, weakening the binding to Hg(II).
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Affiliation(s)
| | - Jorge Cesar Masini
- Instituto de Química, Universidade de São Paulo, C.P. 26077, 05513-970 São Paulo, SP, Brazil.
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Shen Z, Luo Y, Wang Q, Wang X, Sun R. High-value utilization of lignin to synthesize Ag nanoparticles with detection capacity for Hg²⁺. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16147-55. [PMID: 25144307 DOI: 10.1021/am504188k] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
This study reports the rapid preparation of silver nanoparticles (AgNPs) from Tollens' reagent under microwave irradiation. In the synthesis, lignin with reducing groups and spatial three-dimensional structure was used as reducing and stabilizing agents without other chemical reagents, and the effects of the ratio of lignin to Ag(+), reaction temperature, and heating time on the synthesis of AgNPs were investigated. The obtained AgNPs were further characterized by UV-vis, Malvern particle size, TEM, XRD, and XPS analyses. The structural changes of lignin before and after reaction were also studied by FT-IR, (1)H NMR, (13)C NMR, and GC-MS. The results revealed that the obtained AgNPs were mostly spherical with diameters of around 24 nm. The optimum reaction conditions were a ratio 50 mg of lignin to 0.3 mM of Ag(+), a microwave irradiation temperature of 60 °C, and a heating time of 10 min. Moreover, AgNPs redispersed well in water and ethanol after centrifugation for the removal of lignin. During the formation of AgNPs, lignin was oxidized, and the side chains of lignin were partly disrupted into small molecules, such as hydrocarbon and alcohol. The resultant lignin-AgNPs showed highly selective sensing detection for Hg(2+), and the color of the lignin-AgNP solution containing Hg(2+) decreased gradually with increasing amounts of Hg(2+) within seconds, but the other 19 metal ions had little effect on the color and surface plasmon absorption band of the lignin-AgNPs. Also, there was a linear relationship between the absorbance and Hg(2+) concentration, with a limit of detection concentration of 23 nM. This study provides not only a new way to take advantage of agricultural and forestry residues, but also a green and rapid method for the synthesis of AgNPs to detect the toxic ion Hg(2+) selectively and sensitively.
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Affiliation(s)
- Zuguang Shen
- State Key Laboratory of Pulp & Paper Engineering, South China University of Technology , Guangzhou 510640, China
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Kang F, Alvarez PJ, Zhu D. Microbial extracellular polymeric substances reduce Ag+ to silver nanoparticles and antagonize bactericidal activity. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 48:316-322. [PMID: 24328348 DOI: 10.1021/es403796x] [Citation(s) in RCA: 176] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Whereas the antimicrobial mechanisms of silver have been extensively studied and exploited for numerous applications, little is known about the associated bacterial adaptation and defense mechanisms that could hinder disinfection efficacy or mitigate unintended impacts to microbial ecosystem services associated with silver release to the environment. Here, we demonstrate that extracellular polymeric substances (EPS) produced by bacteria constitute a permeability barrier with reducing constituents that mitigate the antibacterial activity of silver ions (Ag(+)). Specifically, manipulation of EPS in Escherichia coli suspensions (e.g., removal of EPS attached to cells by sonication/centrifugation or addition of EPS at 200 mg L(-1)) demonstrated its critical role in hindering intracellular silver penetration and enhancing cell growth in the presence of Ag(+) (up to 0.19 mg L(-1)). High-resolution transmission electron microscopy (HRTEM) combined with X-ray photoelectron spectroscopy (XPS) and energy-dispersive spectrometry (EDS) analyses showed that Ag(+) was reduced to silver nanoparticles (AgNPs; 10-30 nm in diameter) that were immobilized within the EPS matrix. Fourier transform infrared (FTIR) and (13)C nuclear magnetic resonance (NMR) spectra suggest that Ag(+) reduction to AgNPs by the hemiacetal groups of sugars in EPS contributed to immobilization. Accordingly, the amount and composition of EPS produced have important implications on the bactericidal efficacy and potential environmental impacts of Ag(+).
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Affiliation(s)
- Fuxing Kang
- State Key Laboratory of Pollution Control and Resource Reuse/School of the Environment, Nanjing University , Nanjing, Jiangsu 210046, People's Republic of China
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Ahmetli G, Yel E, Deveci H, Bravo Y, Bravo Z. Investigation of Pb(II) adsorption onto natural and synthetic polymers. J Appl Polym Sci 2011. [DOI: 10.1002/app.34969] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Broniatowski M, Dynarowicz-Łatka P. Search for the Molecular Mechanism of Mercury Toxicity. Study of the Mercury(II)−Surfactant Complex Formation in Langmuir Monolayers. J Phys Chem B 2009; 113:4275-83. [DOI: 10.1021/jp810339e] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcin Broniatowski
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
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