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Yang J, Nie J, Bian L, Zhang J, Song M, Wang F, Lv G, Zeng L, Gu X, Xie X, Zhang P, Song Q. Clay minerals/sodium alginate/polyethylene hydrogel adsorbents control the selective adsorption and reduction of uranium: Experimental optimization and Monte Carlo simulation study. J Hazard Mater 2024; 468:133725. [PMID: 38401209 DOI: 10.1016/j.jhazmat.2024.133725] [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] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/18/2024] [Accepted: 02/03/2024] [Indexed: 02/26/2024]
Abstract
Clay minerals formations are potential geological barrier (host rocks) for the long-rerm storage of uranium tailing in deep geological repositories. However, there are still obstacles to the efficient retardation of uranium because of the competition between negatively charged regions at the clay minerals end face, surface and between layers, as well as low mineralization capacity. Herein, employing a simple method, we used sodium alginate (SA), an inexpensive natural polymer material, polyethylene (PE), and the natural clay minerals montmorillonite (Mt), nontronite (Nt), and beidellite (Bd) to prepare three hydrogel adsorbents, (denoted as Mt/PE-@SA, Nt/PE-@SA, and Bd/PE-@SA), respectively. The application of obtained hydrogel adsorbents further extends to uranium(VI) removal from aqueous. Due to the synergistic action of SA group and PE group, hydrogel adsorbents showed select adsorption and mineralization effect on uranium(VI), among which the maximum uranium(VI) adsorption capacity of Nt/PE-@SA was 133.3 mg·g-1 and Mt/PE-@SA exhibited strong selectivity for uranium(VI) in the presence of coexisting metal ions. Cyclic voltammetry studies indicated the mitigation and immobilization of uranium species onto adsorbents by both reduction and mineralization. Besides, the synergistic adsorption of SA and PE on clay minerals was hypothesized, and the idea was supported by structure optimizations results from Monte Carlo dynamics simulation (MCD). Three obtained hydrogel adsorbents structural model was constructed based on its physicochemical characterization, the low energy adsorption sites and adsorption energies are investigated using MCD simulation. The simulation results show that obtained hydrogel adsorbents have a strong interaction with uranium(VI), which ensures the high adsorption capacity of those materials. Most importantly, this work demonstrates a new strategy for preparing mineral-based hydrogel adsorbents with enough stability and provides a new perspective for uranium(VI) removal in complex environment.
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Affiliation(s)
- Jingjie Yang
- State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China; Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Jianan Nie
- Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Liang Bian
- State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China; Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China; Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu 610299, Sichuan, China.
| | - Jingmei Zhang
- Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Mianxin Song
- Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Fei Wang
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300000, China
| | - Guocheng Lv
- School of Materials Science and Engineering, China University of Geosciences, Beijing 100000, China
| | - Li Zeng
- Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Xiaobin Gu
- Guangzhou Institute of Energy Conversion, Chinese Academy of Science, Guangzhou 51000, China
| | - Xin Xie
- Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Peng Zhang
- Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Qing Song
- Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
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Liu H, Li Y, Lv G, Liu X, Liao L. High-purity monoclinic pyrrhotite derived from natural pyrite with excellent removal performance for Cr (VI) and its mechanism. Environ Sci Pollut Res Int 2024; 31:20234-20245. [PMID: 38369659 DOI: 10.1007/s11356-024-32445-4] [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] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 02/08/2024] [Indexed: 02/20/2024]
Abstract
Pyrrhotite, especially the monoclinic type, is a promising material for removing Cr (VI) from wastewater and groundwater due to its high reactivity. However, the purity of the preparation monoclinic pyrrhotite from heated natural pyrite is not high enough, and the role of possible sulfur vacancies in pyrrhotite's crystal structure has been largely ignored in the removal mechanism of Cr (VI). In this work, we characterized the phase composition changes of annealed pyrite in inert gas and prepared high-purity (~ 96%) monoclinic pyrrhotite at the optimal condition. We found that it could remove 18.6 mg/g of Cr (VI) by redox reaction, which is the best value reported of natural pyrite-derived materials so far. As the reactive media material of simulated permeable reactive barrier, the service life of the high-purity monoclinic pyrrhotite column is 297 PV, which is much longer than that of the pyrite column (50 PV). A new founding is that S2- and S vacancy play the essential role during the redox reaction of pyrrhotite and Cr (VI). Monoclinic pyrrhotite had more S vacancy than hexagonal pyrrhotite and pyrite, which explained its superior Cr (VI) removal performance.
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Affiliation(s)
- Hao Liu
- School of Science, China University of Geosciences, Beijing, 100083, China
| | - Yuxin Li
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences, Room 120, Ceshi Building, Beijing, 100083, China
| | - Guocheng Lv
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences, Room 120, Ceshi Building, Beijing, 100083, China
| | - Xin Liu
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences, Room 120, Ceshi Building, Beijing, 100083, China
| | - Libing Liao
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences, Room 120, Ceshi Building, Beijing, 100083, China.
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Yu Q, Liu H, Lv G, Liu X, Wang L, Liao L. Mechanistic insight into lead immobilization on bone-derived carbon/hydroxyapatite composite at low and high initial lead concentration. Sci Total Environ 2023; 900:165910. [PMID: 37524186 DOI: 10.1016/j.scitotenv.2023.165910] [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] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 07/06/2023] [Accepted: 07/28/2023] [Indexed: 08/02/2023]
Abstract
The contamination of heavy metal lead has a serious impact on the natural environment and organisms. Among various materials for lead removal, animal bone derived hydroxyapatite has received extensive attention. However, there are different opinions among researchers regarding the mechanism of lead removal by hydroxyapatite, possibly due to varying initial lead concentrations used in different studies and lack of accuracy in the study of lead removal mechanisms. In present work, we synthesized a carbon-containing hydroxyapatite (CHAP) through pyrolysis of bovine bone with excellent lead removal efficiency, and further investigated the lead removal mechanism of CHAP under high and low initial lead concentrations by combining XRD Rietveld refinement, FTIR, XPS, HRTEM etc. methods. The results showed that under low initial Pb2+ concentration condition, the main mechanism of lead removal by CHAP was chemical precipitation (94.1 %), with small contributions of lead complexation with carbon functional groups and cation-π interactions on the amorphous carbon in CHAP, and surface adsorption on the precipitates. Under high initial Pb2+ concentration condition, chemical precipitation remained the main mechanism (74.68 %), but the contributions of the other three mechanisms increased, and ion exchange appeared in the later stage of the removal process. This study provides new insights on the lead immobilization mechanism by CHAP at different initial Pb2+ concentrations in water.
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Affiliation(s)
- Qihui Yu
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Hao Liu
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Guocheng Lv
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Xin Liu
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Lijuan Wang
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Libing Liao
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
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Liu M, Lv G, Liu H, Zhang J, Liu T, Kong L, Liao L, Guo J. Highly Reversible Chevrel Phase Mo 6Se 8 Cathode with Low Voltage Hysteresis for Rechargeable Aluminum Batteries. ACS Appl Mater Interfaces 2023. [PMID: 37432250 DOI: 10.1021/acsami.3c03231] [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: 07/12/2023]
Abstract
Rechargeable aluminum (Al) batteries have attracted considerable interest as potential large-scale energy storage technologies due to the abundance, high theoretical capacity, and high safety of Al. We report here a highly reversible Al-Mo6Se8 prototype cell with low discharge-charge hysteresis (approximately 50 mV under 30 mA g-1 at 50 °C), ultra-flat discharge plateau, and exceptional cycle stability: the reversible capacity retaining at a steady 77 mA h g-1 after more than 1800 cycles. The Al intercalation-extraction mechanism is probed with ex situ and operando XRD techniques, revealing the reversible intercalation reaction from Mo6Se8 to Al4/3Mo6Se8. The stable electrochemical performance and unambiguous intercalation mechanism of the Al-Mo6Se8 system provide an alternative for beyond-lithium battery technologies.
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Affiliation(s)
- Meng Liu
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Guocheng Lv
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Hao Liu
- School of Science, China University of Geosciences Beijing, Beijing 100083, China
| | - Jian Zhang
- Materials Science and Engineering Program, University of California─Riverside, Riverside, California 92521, United States
| | - Tianming Liu
- School of Science, China University of Geosciences Beijing, Beijing 100083, China
| | - Lingchang Kong
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Libing Liao
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Juchen Guo
- Materials Science and Engineering Program, University of California─Riverside, Riverside, California 92521, United States
- Department of Chemical and Environmental Engineering, University of California─Riverside, Riverside, California 92521, United States
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Yu X, Xu J, Wang J, Qiu J, An X, Wang Z, Lv G, Liao L, Ye J. Mimicking Photosynthesis: A Natural Z‐Scheme Photocatalyst Constructed from Red Mud Bauxite Waste for Overall Water Splitting. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202302050] [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: 03/16/2023]
Affiliation(s)
- Xuelian Yu
- China University of Geosciences Beijing School of Materials Science and Technology 100081 CHINA
| | - Jian Xu
- China University of Geosciences Beijing School of Materials Science and Technology CHINA
| | - Jiangpeng Wang
- China University of Geosciences Beijing School of Materials Science and Technology CHINA
| | - Jinyu Qiu
- China University of Geosciences Beijing School of Materials Science and Technology CHINA
| | | | - Zhuan Wang
- Chinese Academy of Sciences Institute of Physics Laboratory of Soft Matter Physics CHINA
| | - Guocheng Lv
- China University of Geosciences Beijing School of Materials Science and Technology CHINA
| | - Libing Liao
- China University of Geosciences Beijing School of Materials Science and Technology CHINA
| | - Jinhua Ye
- National Institute for Materials Science International Center for Materials Nanoarchitectonics Namiki 1-1 305-0044 Tsukuba JAPAN
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Yu X, Xu J, Wang J, Qiu J, An X, Wang Z, Lv G, Liao L, Ye J. Mimicking Photosynthesis: A Natural Z-Scheme Photocatalyst Constructed from Red Mud Bauxite Waste for Overall Water Splitting. Angew Chem Int Ed Engl 2023; 62:e202302050. [PMID: 36914574 DOI: 10.1002/anie.202302050] [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: 02/10/2023] [Revised: 03/07/2023] [Accepted: 03/13/2023] [Indexed: 03/16/2023]
Abstract
All-solid-state Z-Scheme photocatalysts have attracted significant attention due to their great potential for solar fuel production. However, delicately coupling two individual semiconductors with a charge shuttle by a material strategy remains a challenge. Herein, we demonstrate a new protocol of natural Z-Scheme heterostructures by strategically engineering the component and interfacial structure of red mud bauxite waste. Advanced characterizations elucidated that the hydrogen-induced formation of metallic Fe enabled the effective Z-Scheme electron transfer from Fe2O3 to TiO2, leading to the significantly boosted spatial separation of photo-generated carriers for overall water splitting. To the best of our knowledge, it is the first Z-Scheme heterojunction based on natural minerals for solar fuel production. Thus our work provides a new avenue toward the utilization of natural minerals for advanced catalysis applications.
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Affiliation(s)
- Xuelian Yu
- China University of Geosciences Beijing, School of Materials Science and Technology, 100081, CHINA
| | - Jian Xu
- China University of Geosciences Beijing, School of Materials Science and Technology, CHINA
| | - Jiangpeng Wang
- China University of Geosciences Beijing, School of Materials Science and Technology, CHINA
| | - Jinyu Qiu
- China University of Geosciences Beijing, School of Materials Science and Technology, CHINA
| | - Xiaoqiang An
- Tsinghua University, School of Environment, CHINA
| | - Zhuan Wang
- Chinese Academy of Sciences Institute of Physics, Laboratory of Soft Matter Physics, CHINA
| | - Guocheng Lv
- China University of Geosciences Beijing, School of Materials Science and Technology, CHINA
| | - Libing Liao
- China University of Geosciences Beijing, School of Materials Science and Technology, CHINA
| | - Jinhua Ye
- National Institute for Materials Science, International Center for Materials Nanoarchitectonics, Namiki 1-1, 305-0044, Tsukuba, JAPAN
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Liu T, Lv G, Liu M, Zhao C, Liao L, Liu H, Shi J, Zhang J, Guo J. Synergistic Transition-Metal Selenide Heterostructure as a High-Performance Cathode for Rechargeable Aluminum Batteries. ACS Appl Mater Interfaces 2023; 15:11906-11913. [PMID: 36843285 DOI: 10.1021/acsami.2c23205] [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] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
We synthesize and characterize a rechargeable aluminum battery cathode material composed of heterostructured Co3Se4/ZnSe embedded in a hollow carbon matrix. This heterostructure is synthesized from a metal-organic framework composite, in which ZIF-8 is grown on the surface of ZIF-67 cube. Both experimental and theoretical studies indicate that the internal electric field across the heterostructure interface between Co3Se4 and ZnSe promotes the fast transport of electron and Al-ion diffusion. As a result, the heterostructured Co3Se4/ZnSe demonstrates superior specific capacity and cycle stability compared to the single-phase Co3Se4 and ZnSe cathode materials.
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Affiliation(s)
- Tianming Liu
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Guocheng Lv
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Meng Liu
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Changchun Zhao
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Libing Liao
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Hao Liu
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Jiayan Shi
- Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, United States
| | - Jian Zhang
- Materials Science and Engineering Program, University of California, Riverside, California 92521, United States
| | - Juchen Guo
- Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, United States
- Materials Science and Engineering Program, University of California, Riverside, California 92521, United States
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Li Y, Lv G, Liu H, Liu X, Liao L. Improvement of magnetite adsorption performance for Pb (II) by introducing defects. Front Chem 2023; 11:1137246. [PMID: 36909709 PMCID: PMC9998494 DOI: 10.3389/fchem.2023.1137246] [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: 01/04/2023] [Accepted: 02/16/2023] [Indexed: 03/14/2023] Open
Abstract
Surface defect engineering is an efficient strategy to enhance the adsorption properties of materials. After calcination in argon, the adsorption capacity of natural magnetite to Pb (II) is significantly improved. The Rietveld refinement, Mössbauer spectrum, and XPS were used to prove the existence of oxygen and cation vacancies in the crystal structure of magnetite after calcination, and it is found that the vacancy content is linearly related to the adsorption amount of Pb (II). This indicates that the increase in the adsorption performance of magnetite after calcination is determined by the vacancy. The adsorption capacity increases from 8 to 26 mg/g when the calcination temperature reaches 700°C. The equilibrium adsorption process of Pb (II) on magnetite can be well fitted to the Langmuir model, and the kinetic adsorption followed a pseudo-second-order mechanism. The improvement of the adsorption performance of magnetite is mainly due to the change in its structure, which depends on the oxidation degree and surface effect of magnetite in the calcination process. This work also provides a theoretical basis for the broad application of magnetite as environmental material.
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Affiliation(s)
- Yuxin Li
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences (Beijing), Beijing, China
| | - Guocheng Lv
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences (Beijing), Beijing, China
| | - Hao Liu
- School of Science, China University of Geosciences (Beijing), Beijing, China
| | - Xin Liu
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences (Beijing), Beijing, China
| | - Libing Liao
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences (Beijing), Beijing, China
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Amutenya EL, Zhou F, Liu J, Long W, Ma L, Liu M, Lv G. Preparation of humic acid-bentonite polymer composite: A heavy metal ion adsorbent. Heliyon 2022; 8:e09720. [PMID: 35789871 PMCID: PMC9249857 DOI: 10.1016/j.heliyon.2022.e09720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/07/2022] [Accepted: 06/08/2022] [Indexed: 11/04/2022] Open
Abstract
Adsorbents for wastewater treatment have evolved from scientific adsorbents to natural adsorbents. In this study, a humic acid-bentonite polymer (HBP) composite comprising humic acid, bentonite, and anionic polyacrylamide was integrated into an anionic polyacrylamide (aPAM) polymer matrix as an adsorbent pellet with N, N-methylene-bis-acrylamide (MBA), sodium tetraborate pentahydrate and chromium chloride is used as a novel adsorbent to remove Ni2+, Cd2+ and Pb2+ ions from aqueous solution. Sorption of these ions onto HBP is studied as a function of pH, adsorbent dosage, initial metal ion concentration, humic acid, and bentonite properties to evaluate adsorption efficiency. The results showed that adsorption sharply depends on pH, metal ion concentration, and contact time, but is complemented by humic acid and bentonite properties. The adsorption increased from 8% to 94.7% in the first 30 min at respective pH values of 5.6 and 9 for (Ni2+, Cd2+, and Pb2+). The HBP sorption power decreased with increasing adsorbent dosage, while the adsorption efficiency increased in ascending order for the cations Pb2+, Ni2+ and Cd2+ with efficiencies up to 94.7%, 90.9%, and 90.2%. The experimental data for Ni2+, Pb2+ adsorption fits the Langmuir isotherm, while that for Cd2+ adsorption fits the Freundlich isotherm. HBP showed modest adsorption performance at low and high concentrations, this is attributed in large part to the humic acid and bentonite properties that affect HBP's unique performance. A novel composite material prepared by coupling HA, aPAM, and Bentonite properties. Composite adsorption properties efficient than clay and polymer individually. Humic acid cationic adsorbing properties increased the uptake of heavy metal ion. Sodium bentonite isomorphous substitution compensates HBP cat-ion exchanging abilities. HBP is efficient and eco-friendly for industrial wastewater treatment.
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Jin Y, Li X, Lv G, Zhao M, Jin Y. Joint Resource Allocation in Secure OFDM Two-Way Untrusted Relay System. Sensors (Basel) 2022; 22:s22062398. [PMID: 35336569 PMCID: PMC8953278 DOI: 10.3390/s22062398] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/15/2022] [Accepted: 03/16/2022] [Indexed: 12/04/2022]
Abstract
The security issue of wireless communication is a common concern because of its broadcast nature, especially when the relay becomes an eavesdropper. In the orthogonal frequency division multiplexing (OFDM) relay system, when the relay is untrusted, the security of the system faces serious threats. Although there exist some resource allocation schemes in a single-carrier system with untrusted relaying, it is difficult to apply them to the multi-carrier system. Hence, a resource allocation scheme for the multi-carrier system is needed. Compared to the one-way relay system, a two-way relay system can improve the data transmission efficiency. In this paper, we consider joint secure resource allocation for a two-way cooperative OFDM system with an untrusted relay. The joint resource allocation problem of power allocation and subcarrier pairing is formulated to maximize the sum secrecy rate of the system under individual power constraints. To solve the non-convex problem efficiently, we propose an algorithm based on the alternative optimization method. The proposed algorithm is evaluated by simulation results and compared with the benchmarks in the literature. According to the numerical results, in a high signal-to-noise ratio (SNR) scenario, the proposed algorithm improves the achievable sum secrecy rate of the system by more than 15% over conventional algorithms.
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Affiliation(s)
- Yifeng Jin
- School of Electronics, Peking University, Beijing 100871, China; (Y.J.); (M.Z.); (Y.J.)
| | - Xunan Li
- National Computer Network Emergency Response Technical Team Coordination Center of China, Beijing 100029, China;
| | - Guocheng Lv
- School of Electronics, Peking University, Beijing 100871, China; (Y.J.); (M.Z.); (Y.J.)
- Correspondence:
| | - Meihui Zhao
- School of Electronics, Peking University, Beijing 100871, China; (Y.J.); (M.Z.); (Y.J.)
| | - Ye Jin
- School of Electronics, Peking University, Beijing 100871, China; (Y.J.); (M.Z.); (Y.J.)
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Zhang G, Mei L, Ding J, Su K, Guo Q, Lv G, Liao L. Recent progress on lanthanide complexes/clay minerals hybrid luminescent materials. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.01.006] [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] [Indexed: 10/19/2022]
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12
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Song N, Kan S, Pang Q, Mei H, Zheng H, Li D, Cui F, Lv G, An R, Li P, Xiong Z, Fan S, Zhang M, Chen Y, Qiao Q, Liang X, Cui M, Li D, Liao Q, Li X, Liu W. A prospective study on vulvovaginal candidiasis: multicentre molecular epidemiology of pathogenic yeasts in China. J Eur Acad Dermatol Venereol 2021; 36:566-572. [PMID: 34908189 DOI: 10.1111/jdv.17874] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 11/17/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Vulvovaginal candidiasis (VVC) is frequent in women of reproductive age, but very limited data are available on the epidemiology in cases of VVC in China. OBJECTIVES The current study has been conducted to reveal the prevalence, species distribution of yeast causing VVC and molecular genetics of Candida albicans in China. METHODS Vaginal swabs were collected from 543 VVC outpatients recruited in 12 hospitals in China between September 2017 and March 2018. They were preliminarily incubated on Sabouraud dextrose agar and then positive subjects of which were then transmitted to our institute for further identification. CHROMagar™ was used to isolate Candida species, and all isolates were finally identified by DNA sequencing. Multilocus sequence typing (MLST) was used to analyse phylogenetic relationships of the various C. albicans isolates. RESULTS Eleven different yeast species were identified in 543 isolates, among which C. albicans (84.7%) was the most frequent, followed by C. glabrata (8.7%). We obtained 117 unique diploid sequence types from 451 clinical C. albicans isolates and 92 isolates (20.4%) belonged to a New Clade. All the strains appearing in the New Clade were from northern China and they were isolated from non-recurrent VVC. CONCLUSIONS Our findings suggest that C. albicans are still the main cause of VVC in China and the majority of C. albicans isolates belongs to Clade 1 with DST 79 and DST 45 being two most common. Moreover, the New Clade revealed in our study seems to be specific to northern China.
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Affiliation(s)
- N Song
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - S Kan
- Shanghai Skin Disease Hospital, Department of Medical Mycology, Tongji University School of Medicine, Shanghai, China
| | - Q Pang
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - H Mei
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - H Zheng
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.,Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - D Li
- Department of Microbiology/Immunology, Georgetown University, Washington, DC, USA
| | - F Cui
- Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - G Lv
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - R An
- The First Affiliated Teaching Hospital of Xi'an Jiaotong University, Xi'an, China
| | - P Li
- Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Z Xiong
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - S Fan
- Peking University Shenzhen Hospital, Shenzhen, China
| | - M Zhang
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Chen
- The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Q Qiao
- The Affiliated Hospital of Inner Mongolia Medical University, Huhehaote, China
| | - X Liang
- Peking University People's Hospital, Beijing, China
| | - M Cui
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - D Li
- The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Q Liao
- Department of Obstetrics and Gynecology, Beijing Tsinghua Changgung Hospital, School of Clinical Medical, Tsinghua University, Beijing, China
| | - X Li
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.,Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - W Liu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.,Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.,Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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13
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Yang Y, Wang P, Zheng J, Lv G, Mao R, Zhou D. Cerebral fungal abscess resembling high-grade glioma: A case report in an immunocompromised patient. Neurochirurgie 2020; 66:494-496. [PMID: 33053402 DOI: 10.1016/j.neuchi.2020.09.002] [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] [Received: 05/14/2020] [Revised: 06/29/2020] [Accepted: 09/02/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Y Yang
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - P Wang
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - J Zheng
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - G Lv
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - R Mao
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - D Zhou
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China.
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14
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Fan P, Wang S, Liu H, Liao L, Lv G, Mei L. Polyaniline nanotube synthesized from natural tubular halloysite template as high performance pseudocapacitive electrode. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135259] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Fu J, Liu N, Mei L, Liao L, Deyneko D, Wang J, Bai Y, Lv G. Synthesis of Ce-doped Mn 3Gd 7-xCe x(SiO 4) 6O 1.5 for the enhanced catalytic ozonation of tetracycline. Sci Rep 2019; 9:18734. [PMID: 31822737 PMCID: PMC6904768 DOI: 10.1038/s41598-019-55230-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 06/24/2019] [Accepted: 11/24/2019] [Indexed: 11/16/2022] Open
Abstract
A novel cerium doped compounds Mn3Gd7–xCex(SiO4)6O1.5 with an apatite structure was found and used to achieve high-efficiency degradation of tetracycline in aqueous solution. The catalysts were characterized by XRD, XPS, EDS and other techniques. The characteristic results indicated that the catalytic activity of the compound was improved due to the introduction of Ce in the structure, because Ce3+ which was stably present in the apatite structure can serve as an active site for the reaction, and in addition, there was a high presence between Ce4+ and Ce3+ on the surface of the catalyst. The redox potential and high oxygen storage capacity were also beneficial for the catalytic reaction. The results of free radical capture indicated that both superoxide radicals and hydroxyl radicals participated in the catalytic oxidation process and played an important role in the reaction. The decomposition of tetracycline followed the pseudo second-order reaction kinetics. In addition, the catalyst exhibited long-term stability and low metal leaching during the reaction, which indicated that the novel cerium-doped apatite structure material could be a promising wastewater treatment material.
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Affiliation(s)
- Jie Fu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Ning Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Lefu Mei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China.
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China.
| | - Dina Deyneko
- Chemistry Department, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Jiayang Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Yaning Bai
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing, 100083, China.
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16
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Liao L, Liu H, Chen B, Lv G, Mei L. The influences of Mg intercalation on the structure and supercapacitive behaviours of MoS 2. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s2053273319092271] [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] [Indexed: 11/10/2022] Open
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17
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Liu H, Liao L, Gu W, Lv G, Mei L. Influence of Fe doping on the crystal structure, electronic structure and supercapacitance performance of birnessite with high areal mass loading. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s2053273319092283] [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] [Indexed: 11/10/2022] Open
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18
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Lv G, Zhang DL, Wang D, Pan L, Liu Y. Synthesis, Crystal Structure, Anti-Bone Cancer Activity and Molecular Docking Investigations of the Heterocyclic Compound 1-((2S,3S)-2-(Benzyloxy)Pentan-3-yl) -4-(4-(4-(4-Hydroxyphenyl)Piperazin-1-yl) Phenyl)-1H-1,2,4-Triazol-5(4H)-One. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619070205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Wu M, Zhao S, Tang M, Jing R, Shao Y, Liu X, Dong Y, Li M, Liao Q, Lv G, Zhang Q, Meng Z, Liu A. Adsorption of sulfamethoxazole and tetracycline on montmorillonite in single and binary systems. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.05.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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20
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Hai Y, Zhang Z, Liu H, Liao L, Fan P, Wu Y, Lv G, Mei L. Facile Controlled Synthesis of Spinel LiMn 2O 4 Porous Microspheres as Cathode Material for Lithium Ion Batteries. Front Chem 2019; 7:437. [PMID: 31259169 PMCID: PMC6587301 DOI: 10.3389/fchem.2019.00437] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 04/30/2019] [Accepted: 05/28/2019] [Indexed: 11/13/2022] Open
Abstract
Although the electrochemical properties of porous LiMn2O4 microspheres are usually improved compared to those of irregular LiMn2O4 particles, the effects of the different synthesis conditions on the preparation of the porous LiMn2O4 microspheres are rarely discussed in detail. In the present work, porous LiMn2O4 microspheres were successfully synthesized by using molten LiOH and porous Mn2O3 spheres as a template. Multiple factors were considered in the preparation process, including reagent concentration, pH, adding mode, heating time, etc. The morphology of the MnCO3 template was crucial for the preparation of porous LiMn2O4 microspheres and it was mainly affected by the concentration of reactants and the pH value of the solution during the precipitation process. During the lithiation of Mn2O3 microspheres, the heating temperature and the ratio between Mn2O3 and lithium salt were the most significant variables in terms of control over the morphology and purity of the LiMn2O4 microspheres. Furthermore, we demonstrated that the porous LiMn2O4 microspheres presented better rate capability and cyclability compared to commercial LiMn2O4 powder as cathode materials for lithium-ion batteries (LIBs). This study not only highlights the shape-controllable synthesis of LiMn2O4 microspheres as promising cathode materials, but also provides some useful guidance for the synthesis of porous LiMn2O4 microspheres and other LIB' electrode materials.
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Affiliation(s)
- Yun Hai
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Ziwei Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Hao Liu
- School of Science, China University of Geosciences, Beijing, China
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Peng Fan
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Yuanyuan Wu
- School of Science, China University of Geosciences, Beijing, China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Lefu Mei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology, China University of Geosciences, Beijing, China
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21
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Lv G, Li Z, Elliott L, Schmidt MJ, MacWilliams MP, Zhang B. Impact of tetracycline-clay interactions on bacterial growth. J Hazard Mater 2019; 370:91-97. [PMID: 28954700 DOI: 10.1016/j.jhazmat.2017.09.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 03/10/2017] [Revised: 08/24/2017] [Accepted: 09/16/2017] [Indexed: 06/07/2023]
Abstract
Antibiotics are extremely effective against bacterial infections due to their selective toxicity for bacteria rather than the host. Extensive use and misuse of antibiotics resulted in significant increases in antibiotic levels in aquatic and soil environments. Bacteria exposed to antibiotics with low concentrations may develop antibiotic resistance. In this study a swelling 2:1 clay mineral montmorillonite (MMT) and a non-swelling 1:1 clay mineral kaolinite were premixed with tetracycline (TC) of varying concentrations. The gram-negative bacteria Escherichia coli (E. coli) and Salmonella enterica (S. enterica) of both TC sensitive and TC resistant strains were tested for their growth in the presence TC-loaded clay minerals of different amounts and under different physico-chemical conditions. The antimicrobial activity of TC was significantly decreased in the presence of MMT. In the absence of MMT, no bacteria growth was found at a TC concentration 0.25mg/mL and above. On the contrast, in the presence of MMT, 50% growth was still found for a TC resistant E. coli at a TC concentration of 5mg/g. The influence of kaolinite was to a lesser degree. These results suggest that antimicrobial agents present in clayey soils could be responsible for possible mutation of bacteria of high antibiotic resistance.
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Affiliation(s)
- Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Zhaohui Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China; Department of Geosciences, University of Wisconsin - Parkside, Kenosha, WI 53141-2000, USA.
| | - Lisa Elliott
- Department of Biological Sciences, University of Wisconsin - Parkside, Kenosha, WI 53141-2000, USA
| | - Monica J Schmidt
- Department of Biological Sciences, University of Wisconsin - Parkside, Kenosha, WI 53141-2000, USA
| | - Maria P MacWilliams
- Department of Biological Sciences, University of Wisconsin - Parkside, Kenosha, WI 53141-2000, USA
| | - Baogang Zhang
- School of Water Resources and Environment, China University of Geosciences Beijing, Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China.
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22
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Wu L, Duan Y, Chen L, Tang N, Li J, Qian Q, Wang Q, Lv G. Study on Controllable Assembly of Stearic Acid within Interlayer Spacing of Montmorillonite and Its Energy Storage Performance. Langmuir 2019; 35:5684-5692. [PMID: 30964687 DOI: 10.1021/acs.langmuir.8b04224] [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] [Indexed: 06/09/2023]
Abstract
As an energy carrier, the phase change material can enhance the efficiency of an energy source and reduce its load. The present paper describes the assembly of the energy carrier molecule [stearic acid (SA)] into the interlayer spacing of montmorillonite (Mt). A novel inorganic/organic composite energy storage material was prepared, which effectively reduces the phase change temperature of the energy storage molecule. Through acid treatment, the Si4+/Al3+ ratio of Mt can be regulated to obtain a series of Mts with different layer charges. As a result, a controllable assembly of energy storage molecule, SA, into the interlayer spacing of Mts with different layer charges was accomplished. By controlling the layer charges of Mt arrangement morphology and interactive force of SA molecules in the interlayer, spacing of Mt can be changed effectively. The phase change temperature (exothermic reaction) reduces from 50.5 to 32 °C compared with the SA molecules, which are used to control phase change temperature of the energy storage material. The study presents a SA/Mt energy storage material that can aid in further development in the field of energy storage construction materials.
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Affiliation(s)
- Limei Wu
- School of Materials Science and Engineering , Shenyang Jianzhu University , Shenyang 110168 , China
| | - Yuting Duan
- School of Materials Science and Engineering , Shenyang Jianzhu University , Shenyang 110168 , China
| | - Lina Chen
- School of Materials Science and Engineering , Shenyang Jianzhu University , Shenyang 110168 , China
| | - Ning Tang
- School of Materials Science and Engineering , Shenyang Jianzhu University , Shenyang 110168 , China
| | - Jiahui Li
- School of Materials Science and Engineering , Shenyang Jianzhu University , Shenyang 110168 , China
| | - Qinghua Qian
- School of Materials Science and Engineering , Shenyang Jianzhu University , Shenyang 110168 , China
| | - Qing Wang
- School of Materials Science and Engineering , Shenyang Jianzhu University , Shenyang 110168 , China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , China
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Qiao R, Li X, Han X, Wang K, Lv G, Ren G, Li X. Population structure and genetic diversity of four Henan pig populations. Anim Genet 2019; 50:262-265. [PMID: 30883844 DOI: 10.1111/age.12775] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2019] [Indexed: 12/22/2022]
Abstract
To investigate the population structure and genetic diversity of Henan indigenous pig breeds, samples from a total of 78 pigs of 11 breeds were collected, including four pig populations from Henan Province, three Western commercial breeds, three Chinese native pig breeds from other provinces and one Asian wild boar. The genotyping datasets were obtained by genotyping-by-sequencing technology. We found a high degree of polymorphism and rapid linkage disequilibrium decay in Henan pigs. A neighbor-joining tree, principal component analysis and structure analysis revealed that the Huainan and Erhualian pigs were clustered together and that the Queshan black pigs were clearly grouped together but that the Nanyang and Yuxi pigs were extensively admixed with Western pigs. In addition, heterozygosity values might indicate that Henan indigenous pigs, especially the Queshan black and Huainan pigs, were subjected to little selection during domestication. The results presented here indicate that Henan pig breeds were admixed from Western breeds, especially Nanyang and Yuxi pigs. Therefore, establishment of purification and rejuvenation systems to implement conservation strategies is urgent. In addition, it is also necessary to accelerate genetic resources improvement and utilization using modern breeding technologies, such as genomic selection and genome-wide association studies.
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Affiliation(s)
- R Qiao
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X Han
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - K Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - G Lv
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - G Ren
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
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24
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Wang L, Wei Y, Lv G, Liao L, Zhang D. Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine. Materials (Basel) 2019; 12:E303. [PMID: 30669374 PMCID: PMC6356638 DOI: 10.3390/ma12020303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 01/11/2019] [Accepted: 01/17/2019] [Indexed: 11/16/2022]
Abstract
Gellable composite materials (GCM) were prepared from a smelting slag of copper and nickel deposits and cement, and activated using gypsum and chemical activators. The effects of material ratio, dosage of chemical activators, and gypsum on the mechanical properties of GCM were studied. Our results showed that the chemical activators of Na₂SO₄, Na₂SiO₃, NaOH, and Na₂CO₃ could improve the compressive strength of the GCM. Considering the market cost and ease operation, the compressive strength of the GCM could be significantly improved with 2% Na₂SO₄. The experiment results also showed that the compound chemical activator could improve the compressive strength of gelled material. The strength of GCM reaches 41.6 MPa when 2% gypsum and 80% of smelting slags of copper and nickel deposits were used, which met the national standards requirements of GCM. As such, it is expected that a large amount of copper and nickel mining smelting slag could be utilized for the production of cementitious materials.
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Affiliation(s)
- Lijuan Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
| | - Yanke Wei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
| | - Dan Zhang
- Beijing General Research Institute of Mining & Metallurgy, Beijing 110160, China.
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Fu J, Liu H, Liao L, Fan P, Wang Z, Wu Y, Zhang Z, Hai Y, Lv G, Mei L, Hao H, Xing J, Dong J. Ultrathin Si/CNTs Paper-Like Composite for Flexible Li-Ion Battery Anode With High Volumetric Capacity. Front Chem 2018; 6:624. [PMID: 30619831 PMCID: PMC6300474 DOI: 10.3389/fchem.2018.00624] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 11/01/2018] [Accepted: 12/03/2018] [Indexed: 11/13/2022] Open
Abstract
Thin and lightweight flexible lithium-ion batteries (LIBs) with high volumetric capacities are crucial for the development of flexible electronic devices. In the present work, we reported a paper-like ultrathin and flexible Si/carbon nanotube (CNT) composite anode for LIBs, which was realized by conformal electrodeposition of a thin layer of silicon on CNTs at ambient temperature. This method was quite simple and easy to scale up with low cost as compared to other deposition techniques, such as sputtering or CVD. The flexible Si/CNT composite exhibited high volumetric capacities in terms of the total volume of active material and current collector, surpassing the most previously reported Si-based flexible electrodes at various rates. In addition, the poor initial coulombic efficiency of the Si/CNT composites can be effectively improved by prelithiation treatment and a commercial red LED can be easily lighted by a full pouch cell using a Si/CNT composite as a flexible anode under flat or bent states. Therefore, the ultrathin and flexible Si/CNT composite is highly attractive as an anode material for flexible LIBs.
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Affiliation(s)
- Jinzhou Fu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of GeosciencesBeijing, China
| | - Hao Liu
- School of Science, China University of GeosciencesBeijing, China
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of GeosciencesBeijing, China
| | - Peng Fan
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of GeosciencesBeijing, China
| | - Zhen Wang
- School of Science, China University of GeosciencesBeijing, China
| | - Yuanyuan Wu
- School of Science, China University of GeosciencesBeijing, China
| | - Ziwei Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of GeosciencesBeijing, China
| | - Yun Hai
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of GeosciencesBeijing, China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of GeosciencesBeijing, China
| | - Lefu Mei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of GeosciencesBeijing, China
| | - Huiying Hao
- School of Science, China University of GeosciencesBeijing, China
| | - Jie Xing
- School of Science, China University of GeosciencesBeijing, China
| | - Jingjing Dong
- School of Science, China University of GeosciencesBeijing, China
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26
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Liu H, Gu W, Luo B, Fan P, Liao L, Tian E, Niu Y, Fu J, Wang Z, Wu Y, Lv G, Mei L. Influence of Fe doping on the crystal structure, electronic structure and supercapacitance performance of birnessite [(Na, K)x(Mn4+, Mn3+)2O4·1.5H2O] with high areal mass loading. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.08.145] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Fan P, Liu H, Liao L, Wang Z, Wu Y, Zhang Z, Hai Y, Lv G, Mei L. Excellent electrochemical properties of graphene-like carbon obtained from acid-treating natural black talc as Li-ion battery anode. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.09.079] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Rao W, Lv G, Wang D, Liao L. Enhanced Degradation of Rh 6G by Zero Valent Iron Loaded on Two Typical Clay Minerals With Different Structures Under Microwave Irradiation. Front Chem 2018; 6:463. [PMID: 30356813 PMCID: PMC6189551 DOI: 10.3389/fchem.2018.00463] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 07/30/2018] [Accepted: 09/14/2018] [Indexed: 11/13/2022] Open
Abstract
Nanoscale zero valent iron has been a widespread concern in various fields due to its large specific surface area and high reactivity. However, nanoscale zero valent iron (nZVI) is very likely to aggregate and be oxidized, which limit its wide application in industry. Most clay minerals have a large adsorption capacity of cations due to their negative charges and high specific surface areas. In the present work, nZVI was loaded onto two typical clay minerals: kaolinite and sepiolite, to inhibit its oxidation and aggregation. The composites were applied to degrade Rhodamine 6G (Rh 6G) under microwave irradiation. The effects of pH value and microwave power on degradation were studied. The results showed that the removal amount of Rh 6G by nZVI/kaolinite was 110 mg/g in 15 min, while it reached 300 mg/g by nZVI/sepiolite. The difference between these two composites was mostly determined by the structures of these two clay minerals.
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Affiliation(s)
- Wenxiu Rao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Danyu Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
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29
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Liu S, Mei L, Liang X, Liao L, Lv G, Ma S, Lu S, Abdelkader A, Xi K. Anchoring Fe 3O 4 Nanoparticles on Carbon Nanotubes for Microwave-Induced Catalytic Degradation of Antibiotics. ACS Appl Mater Interfaces 2018; 10:29467-29475. [PMID: 30091894 DOI: 10.1021/acsami.8b08280] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Microwave-induced catalytic degradation is considered amongst the most efficient techniques to remove antibiotic such as chlortetracycline from contaminated water. Described here is a new microwave-induced oxidation catalyst based on carbon nanotubes (CNTs) decorated uniformly with nanoparticles of Fe3O4. The combination of dielectric loss and magnetic loss of the material contributed to its stronger microwave absorption and the ability to produce more "hot spots". These hot spots promoted the oxidation of common antibiotics such as chlortetracycline, tetracycline, and oxytetracycline under microwave irradiation. Experiments with the addition of scavenger showed that hydroxy radicals (•OH) together with superoxide radicals (•O2-) contributed to the antibiotics removal as well. The final degradation products included CO2 and NO3- as confirmed by mass spectroscopy and ion chromatography analyses. The results indicated that the Fe3O4/CNTs was an efficient catalyst for microwave-induced oxidation.
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Affiliation(s)
- Shiyuan Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , PR China
| | - Lefu Mei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , PR China
| | - Xiaoliang Liang
- Key Laboratory of Mineralogy and Metallogeny , Guangzhou Institute of Geochemistry, Chinese Academy of Sciences , Guangzhou 510640 , PR China
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , PR China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , PR China
| | - Shuaifei Ma
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology , China University of Geosciences , Beijing 100083 , PR China
| | - Shiyao Lu
- Department of Applied Chemistry, School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials , Xi'an Jiaotong University , Xi'an 710049 , PR China
| | - Amr Abdelkader
- Department of Design and Engineering, Faculty of Science & Technology , Bournemouth University , Poole , Dorset BH12 5BB , United Kingdom
- Department of Materials Science and Metallurgy , University of Cambridge , Cambridge CB3 0FS , United Kingdom
| | - Kai Xi
- Department of Materials Science and Metallurgy , University of Cambridge , Cambridge CB3 0FS , United Kingdom
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30
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Wei Y, Mei L, Li R, Liu M, Lv G, Weng J, Liao L, Li Z, Lu L. Fabrication of an AMC/MMT Fluorescence Composite for its Detection of Cr(VI) in Water. Front Chem 2018; 6:367. [PMID: 30186831 PMCID: PMC6110932 DOI: 10.3389/fchem.2018.00367] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 06/07/2018] [Accepted: 07/30/2018] [Indexed: 11/13/2022] Open
Abstract
Hexavalent chromium species, Cr(VI), which can activate teratogenic processes, disturb DNA synthesis and induce mutagenic changes resulting in malignant tumors. The detection and quantification of Cr(VI) is very necessary. One of the rapid and simple methods for contaminant analysis is fluorescence detection using organic dye molecules. Its application is limited owing to concentration quenching due to aggregation of fluorescent molecules. In this study, we successfully intercalated 7-amino-4-methylcoumarin (AMC) into the interlayer space of montmorillonite (MMT), significantly inhibited fluorescence quenching. Due to enhanced fluorescence property, the composite was fabricated into a film with chitosan to detect Cr(VI) in water. Cr(VI) can be detected in aqueous solution by instruments excellent, ranging from 0.005 to 100 mM with a detection limit of 5 μM.
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Affiliation(s)
- Yanke Wei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Lefu Mei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Rui Li
- State Grid Corporation of China, Beijing, China
| | - Meng Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Jianle Weng
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Zhaohui Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
- Geosciences Department, University of Wisconsin—Parkside, Kenosha, WI, United States
| | - Lin Lu
- State Grid Corporation of China, Beijing, China
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31
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Li Z, Potter N, Rasmussen J, Weng J, Lv G. Removal of rhodamine 6G with different types of clay minerals. Chemosphere 2018; 202:127-135. [PMID: 29567610 DOI: 10.1016/j.chemosphere.2018.03.071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 10/30/2017] [Revised: 03/07/2018] [Accepted: 03/11/2018] [Indexed: 06/08/2023]
Abstract
With an increased use of color dye in textile industries and elevated fabrics output, more scientific studies and technology developments are needed to effectively treat wastewater containing dyes. However, better understanding of the interactions between dyes and suspended solids is a necessity to advance such developments. In this study the interactions between rhodamine 6G (R6G), a cationic dye, and different types of clays minerals, commonly found in the wastewater sludge, were elucidated. The uptake of R6G on the clay minerals was attributed to cation exchange on the external surfaces of non-swelling clays, and at both external and interlayer spaces for swelling clays. In the interlayer of montmorillonite, the R6G molecules form monolayer and bilayer configurations under low and high uptake levels. The significant amounts of R6G uptake indicate that clay minerals are good sorbents for the removal of cationic dyes from water. And the R6G could be readily removed in wastewater treatment by adding small amount of clays and flocculated the clays out.
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Affiliation(s)
- Zhaohui Li
- School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China; Geosciences Department, University of Wisconsin-Parkside, Kenosha, WI 53144, USA.
| | - Nicholas Potter
- Geosciences Department, University of Wisconsin-Parkside, Kenosha, WI 53144, USA
| | - Joseph Rasmussen
- Geosciences Department, University of Wisconsin-Parkside, Kenosha, WI 53144, USA
| | - Jianle Weng
- School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Guocheng Lv
- School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China
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32
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He Y, Zheng H, Li X, Lv G, Liu W. 881 Comparison of Sensititre YeastOne® colorimetric antifungal panel with routine CLSI tests against dematiaceos fungi. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.893] [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] [Indexed: 10/17/2022]
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33
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Abstract
With a layered structure, layered double hydroxide (LDH) has potential applications in remediation of anionic contaminants, which has been a hot topic for recent years. In this study, a Cl type Mg-Al hydrotalcite (Cl-LDH) was prepared by a co-precipitation method. The adsorption process of three pharmaceuticals and personal care products (PPCPs) [tetracycline (TC), diclofenac sodium (DF), chloramphenicol (CAP)] by Cl-LDH was investigated by X-ray diffraction (XRD), Zeta potential, dynamic light scattering (DLS), BET, Fourier transform infrared (FTIR) spectroscopy, and molecular dynamics simulation. The results showed that the adsorption equilibrium of TC and DF could be reached in 120 min, and the maximum adsorption capacity of the TC and DF were 1.85 and 0.95 mmol/g, respectively. The isothermal adsorption model of TC was fitted with the Freundlich adsorption model, and the isothermal adsorption model of DF was fitted with the Langmuir adsorption model. The adsorption dynamics of TC and DF followed the pseudo-second-order model. The adsorption mechanisms of the three PPCPs into Cl-LDH were different based on the experimental results and molecular dynamics simulation. The TC adsorption on Cl-LDH was accompanied by the electrostatic interactions between the negative charge of TC and the positive charge of Cl-LDH. The uptake of DF was attributed to anion exchange and electrostatic interaction. Cl-LDH does not adsorb CAP due to no electrostatic interaction. The molecular dynamic simulation further confirmed different configurations of three selected PPCPs, which were ultimately responsible for the uptake of PPCPs on Cl-LDH.
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Affiliation(s)
- Erwei Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Zhaohui Li
- Geosciences Department, University of Wisconsin-Parkside, Kenosha, WI, United States
| | - Chengxue Yang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Yanan Lu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
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34
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Zhan P, Dukik K, Li D, Sun J, Stielow JB, Gerrits van den Ende B, Brankovics B, Menken SBJ, Mei H, Bao W, Lv G, Liu W, de Hoog GS. Phylogeny of dermatophytes with genomic character evaluation of clinically distinct Trichophyton rubrum and T. violaceum. Stud Mycol 2018; 89:153-175. [PMID: 29910521 PMCID: PMC6002342 DOI: 10.1016/j.simyco.2018.02.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [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] [Indexed: 01/03/2023] Open
Abstract
Trichophyton rubrum and T. violaceum are prevalent agents of human dermatophyte infections, the former being found on glabrous skin and nail, while the latter is confined to the scalp. The two species are phenotypically different but are highly similar phylogenetically. The taxonomy of dermatophytes is currently being reconsidered on the basis of molecular phylogeny. Molecular species definitions do not always coincide with existing concepts which are guided by ecological and clinical principles. In this article, we aim to bring phylogenetic and ecological data together in an attempt to develop new species concepts for anthropophilic dermatophytes. Focus is on the T. rubrum complex with analysis of rDNA ITS supplemented with LSU, TUB2, TEF3 and ribosomal protein L10 gene sequences. In order to explore genomic differences between T. rubrum and T. violaceum, one representative for both species was whole genome sequenced. Draft sequences were compared with currently available dermatophyte genomes. Potential virulence factors of adhesins and secreted proteases were predicted and compared phylogenetically. General phylogeny showed clear gaps between geophilic species of Arthroderma, but multilocus distances between species were often very small in the derived anthropophilic and zoophilic genus Trichophyton. Significant genome conservation between T. rubrum and T. violaceum was observed, with a high similarity at the nucleic acid level of 99.38 % identity. Trichophyton violaceum contains more paralogs than T. rubrum. About 30 adhesion genes were predicted among dermatophytes. Seventeen adhesins were common between T. rubrum and T. violaceum, while four were specific for the former and eight for the latter. Phylogenetic analysis of secreted proteases reveals considerable expansion and conservation among the analyzed species. Multilocus phylogeny and genome comparison of T. rubrum and T. violaceum underlined their close affinity. The possibility that they represent a single species exhibiting different phenotypes due to different localizations on the human body is discussed.
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Affiliation(s)
- P Zhan
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.,Dermatology Hospital of Jiangxi Provinces, Jiangxi Dermatology Institute, Nanchang, China.,Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - K Dukik
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - D Li
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.,Georgetown University Medical Center, Department of Microbiology and Immunology, Washington, DC, USA
| | - J Sun
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - J B Stielow
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Thermo Fisher Scientific, Landsmeer, The Netherlands.,Center of Expertise in Mycology of Radboudumc/Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
| | | | - B Brankovics
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - S B J Menken
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - H Mei
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - W Bao
- Nanjing General Hospital of Nanjing Command, Nanjing, China
| | - G Lv
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - W Liu
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - G S de Hoog
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands.,Thermo Fisher Scientific, Landsmeer, The Netherlands.,Center of Expertise in Mycology of Radboudumc/Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
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35
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Liu M, Lv G, Mei L, Wei Y, Liu J, Li Z, Liao L. Fabrication of AO/LDH fluorescence composite and its detection of Hg 2+ in water. Sci Rep 2017; 7:13414. [PMID: 29042613 PMCID: PMC5645344 DOI: 10.1038/s41598-017-13779-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 07/12/2017] [Accepted: 09/29/2017] [Indexed: 11/15/2022] Open
Abstract
Divalent mercury ion (Hg2+) is one of the most common pollutants in water with high toxicity and significant bioaccumulation, for which sensitive and selective detection methods are highly necessary to carry out its detection and quantification. Fluorescence detection by organic dyes is a simple and rapid method in pollutant analyses and is limited because of quenching caused by aggregation dye molecules. Hydrotalcite (LDH) is one of the most excellent carrier materials. In this study, an organic dye acridine orange (AO) was successfully loaded on the LDH layers, which significantly inhibited fluorescence quenching of AO. The composite AO/LDH reaches the highest fluorescence intensity when the AO initial concentration is 5 mg/L. With its enhanced fluorescent property, the composite powder was fabricated to fluorescence test papers. The maximal fluorescence intensity was achieved with a pulp to AO/LDH ratio of 1:5 which can be used to detect Hg2+ in water by naked eyes. Hg2+ in aqueous solution can be detected by instruments in the range of 0.5 to 150 mM. The novelty of this study lies on both the development of a new type of mineral-dye composite material, as well as its practical applications for fast detection.
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Affiliation(s)
- Meng Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China.
| | - Lefu Mei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Yanke Wei
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Jieyuan Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Zhaohui Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China.,Geosciences Department, University of Wisconsin - Parkside, Kenosha, WI, 53144, USA
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China.
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36
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Gu W, Lv G, Liao L, Yang C, Liu H, Nebendahl I, Li Z. Fabrication of Fe-doped birnessite with tunable electron spin magnetic moments for the degradation of tetracycline under microwave irradiation. J Hazard Mater 2017; 338:428-436. [PMID: 28595157 DOI: 10.1016/j.jhazmat.2017.05.044] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 05/22/2017] [Accepted: 05/23/2017] [Indexed: 06/07/2023]
Abstract
Manganese oxides exhibit an excellent microwave absorption performance that could increase the degradation efficiency of organic pollutants in contaminated water. Incorporation of various transition metals into manganese oxides could bring about changes in their crystal structure and improve their physicochemical performance. In this work, a better microwave absorption material was obtained by adjusting and controlling the electron spin magnetic moments of Fe-doped birnessite. The powder X-ray diffraction, inductive coupled plasma emission spectrometer, X-ray photoelectron spectroscopy, and network analyses were performed to characterize the crystal structure, chemical composition, valence and content of the elements, and the microwave absorption performance of the obtained samples. Doping Fe into birnessite resulted in little changes to their crystal structure. The narrow energy spectrum of Fe (2p) revealed that the doped Fe was in the form of Fe (III) in birnessite structure. As the content of Fe (III) increased, the content of Mn (III) decreased accordingly. Substitution of Mn (III) by Fe (III) in the birnessite crystal lattice, confirmed by combining the characterization analyses with structure refinements for each doped sample, increased the overall numbers of unpaired electrons in birnessite structure, resulting in a higher electron spin magnetic moment and better microwave response. Compared with the non-doped sample, Fe-doped birnessite improved the efficiency of tetracycline degradation, which proved that Fe-doped birnessite indeed had better response towards the microwave, and thus, could be utilized for better removal of organic pollutants under microwave irradiation.
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Affiliation(s)
- Wenlong Gu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
| | - Chenxue Yang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Hao Liu
- School of Science, China University of Geosciences, Beijing, 100083, China
| | - Ian Nebendahl
- Geosciences Department, University of Wisconsin - Parkside, Kenosha, WI, 53141-2000, USA
| | - Zhaohui Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China; Geosciences Department, University of Wisconsin - Parkside, Kenosha, WI, 53141-2000, USA
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37
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Chen B, Fan G, Sun W, Shang X, Shi S, Wang S, Lv G, Wu C. Usefulness of diffusion-tensor MRI in the diagnosis of Parkinson variant of multiple system atrophy and Parkinson's disease: a valuable tool to differentiate between them? Clin Radiol 2017; 72:610.e9-610.e15. [DOI: 10.1016/j.crad.2017.02.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/21/2016] [Accepted: 02/03/2017] [Indexed: 11/26/2022]
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38
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Fan P, Liu H, Liao L, Fu J, Wang Z, Lv G, Mei L, Hao H, Xing J, Dong J. Flexible and high capacity lithium-ion battery anode based on a carbon nanotube/electrodeposited nickel sulfide paper-like composite. RSC Adv 2017. [DOI: 10.1039/c7ra08239h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
A flexible NS@CNT composite is synthesized by electrodeposition, showing a record specific capacity in terms of the entire electrode mass.
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Affiliation(s)
- Peng Fan
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
- P. R. China
| | - Hao Liu
- School of Science
- China University of Geosciences
- Beijing
- P. R. China
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices
| | - Libing Liao
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
- P. R. China
| | - Jinzhou Fu
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
- P. R. China
| | - Zhen Wang
- School of Science
- China University of Geosciences
- Beijing
- P. R. China
| | - Guocheng Lv
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
- P. R. China
| | - Lefu Mei
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
- P. R. China
| | - Huiying Hao
- School of Science
- China University of Geosciences
- Beijing
- P. R. China
| | - Jie Xing
- School of Science
- China University of Geosciences
- Beijing
- P. R. China
| | - Jingjing Dong
- School of Science
- China University of Geosciences
- Beijing
- P. R. China
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Lv G, Xing X, Wu L, Jiang WT, Li Z, Liao L. Tunable high-performance microwave absorption for manganese dioxides by one-step Co doping modification. Sci Rep 2016; 6:37400. [PMID: 27853275 PMCID: PMC5112597 DOI: 10.1038/srep37400] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 06/09/2016] [Accepted: 10/25/2016] [Indexed: 01/22/2023] Open
Abstract
The frequencies of microwave absorption can be affected by the permanent electric dipole moment which could be adjusted by modifying the crystal symmetry of the microwave absorbing materials. Herein, we corroborate this strategy experimentally and computationally to the microwave absorption of manganese dioxides. Nanosized Co-doped cryptomelane (Co-Cryp) was successfully synthesized by a one-step reaction. The introduction of Co(III) induced a change of crystal symmetry from tetragonal to monlclinic, which could lead to an increase of its permanent electric dipole moment. As a result, the frequencies of maximum microwave absorption were regulated in the range of 7.4 to 13.9 GHz with a broadened bandwidths. The results suggested that microwave absorption of manganese dioxides can be tailored with Co doping to expand their potential uses for abatement of various microwave pollutions.
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Affiliation(s)
- Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, PR China
| | - Xuebing Xing
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, PR China
| | - Limei Wu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, PR China
| | - Wei-Teh Jiang
- Department of Earth Sciences, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Zhaohui Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, PR China.,Department of Earth Sciences, National Cheng Kung University, Tainan, 70101, Taiwan.,Geosciences Department, University of Wisconsin - Parkside, Kenosha, WI 53144, USA
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, PR China
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Chen F, Dai Z, Kang Y, Lv G, Keller ET, Jiang Y. Effects of zoledronic acid on bone fusion in osteoporotic patients after lumbar fusion. Osteoporos Int 2016; 27:1469-1476. [PMID: 26556733 PMCID: PMC4792656 DOI: 10.1007/s00198-015-3398-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 11/03/2015] [Indexed: 10/22/2022]
Abstract
UNLABELLED Treatment with zoledronic acid in osteoporotic patients with spinal fusion shortens the duration of time to fusion, improves the fusion rate, prevents the subsequent adjacent vertebral compression fractures, improves the clinical outcomes, and prevents immobilization-induced bone loss in the hip. INTRODUCTION The objective of the study was to explore the effects of zoledronic acid on the healing process in osteoporotic patients following spinal fusion in a randomized, placebo-controlled, and triple-blinded study. METHODS Seventy-nine osteoporotic patients with single-level degenerative spondylolisthesis were randomly assigned to receive either zoledronic acid infusion (zoledronic acid group) or saline infusion (controls) after spinal fusion. Functional radiography and CT scans were used to evaluate fusion status. Bone formation was graded into three categories: Grade A (bridging bone bonding with adjacent vertebral bodies), Grade B (bridging bone bonding with either superior or inferior vertebral body), or Grade C (incomplete bony bridging). A solid fusion was defined as less than 5° of angular motion with Grade A or B bone formation. Adjacent vertebral compression fractures (VCF) were assessed on MRI at 12 months after surgery. Serum level of carboxy terminal cross-linked telopeptide of type I collagen (β-CTX) and amino-terminal propeptide of type I procollagen (PINP) was measured. Bone mineral density (BMD) was measured by DXA. Oswestry Disability Index (ODI) was used to assess the clinical outcomes. RESULTS Grade A or B bridging bone was more frequently observed in zoledronic acid group at 3, 6, and 9 months post-operation compared to the control group (p < 0.05). At 12 -months post-operation, bridging bone and solid fusion were not significantly different between groups. No patients in zoledronic acid group showed aVCF, whereas six patients (17 %) in the control group did (p < 0.05). Both β-CTX and PINP were suppressed in zoledronic acid group. BMD at the femoral neck decreased rapidly and did not return to the preoperative level in the controls at 3 (-1.4 %), 6 (-2.5 %), and 12 (-0.8 %) months after surgery. Zoledronic acid prevented this immobilization-induced bone loss and increased BMD. ODI showed the improved clinical outcomes compared with controls at 9 and 12 months post-surgery. CONCLUSION Treatment with zoledronic acid in osteoporotic patients with spinal fusion shortens the time to fusion, improves the fusion rate, prevents subsequent aVCFs, and improves clinical outcomes.
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Affiliation(s)
- F Chen
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Z Dai
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China.
| | - Y Kang
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China
| | - G Lv
- Department of Spine Surgery, The 2nd Xiangya Hospital, Central South University, Changsha, 410011, China
| | - E T Keller
- Department of Urology, University of Michigan, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA
- Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Y Jiang
- Osteoporosis and Arthritis Lab, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Urology, University of Michigan, Ann Arbor, MI, 48109, USA
- Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI, 48109, USA
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Chang PH, Jiang WT, Li Z, Kuo CY, Wu Q, Jean JS, Lv G. Interaction of ciprofloxacin and probe compounds with palygorskite PFl-1. J Hazard Mater 2016; 303:55-63. [PMID: 26513564 DOI: 10.1016/j.jhazmat.2015.10.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 08/01/2015] [Revised: 10/08/2015] [Accepted: 10/08/2015] [Indexed: 06/05/2023]
Abstract
The adsorption of ciprofloxacin (CIP) as well as probe compounds, phenylpiperazine (PP) (NH) and fluorochloroquinolone carboxylic acid (FCQCA) (COOH), on palygorskite (PFl-1) obeyed the Langmuir isotherm at pH 2, 7, and 11 except the FCQCA adsorption at pH 2. The CIP and PP adsorption onto PFl-1 was 98-160 mmol/kg. In neutral solution the total amount of exchangeable cations desorbed correlated with the adsorbed amount of CIP and PP well with a slope of 0.9-1, indicating a cation-exchange mechanism. A low amount of FCQCA adsorption of 27-57 mmol/kg was observed and the amount of exchangeable cations desorbed negatively correlate with the amount of FCQCA adsorbed as influenced by surface complexation or cation bridging. FTIR band shifting due to the ring-stretch vibration of PP and the keto-carbonyl group stretching of FCQCA suggested strong interactions as PP and FCQCA absorbed on PFl-1 in neutral solution. In the interaction of CIP with PFl-1, the piperazine-amine group played an important role in cation-exchange interaction in acidic to neutral solution, while the deprotonated keto carbonyl group actively partook in cation bridging or surface complexation with metal cations adsorbed on PFl-1 when the CIP was in anionic form in alkaline solution.
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Affiliation(s)
- Po-Hsiang Chang
- Department of Earth Sciences, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan
| | - Wei-Teh Jiang
- Department of Earth Sciences, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan.
| | - Zhaohui Li
- Department of Geosciences, University of Wisconsin-Parkside, 900 Wood Road, Kenosha, WI 53144, USA.
| | - Chung-Yih Kuo
- Department of Public Health, College of Health Care and Management, Chung Shan Medical University, No. 110, Sec. 1, Chien-Kuo N Road, Taichung 40242, Taiwan
| | - Qingfeng Wu
- College of Physics and Technology, Yangtze University, Jingzhou, Hubei 434023, China
| | - Jiin-Shuh Jean
- Department of Earth Sciences, National Cheng Kung University, 1 University Road, Tainan 70101, Taiwan
| | - Guocheng Lv
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
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Xing X, Lv G, Xu W, Liao L, Jiang WT, Li Z, Wang GS. Controllable adjustment of the crystal symmetry of K–MnO2 and its influence on the frequency of microwave absorption. RSC Adv 2016. [DOI: 10.1039/c6ra08968b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Microwave (MW) is becoming an important polluter.
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Affiliation(s)
- Xuebing Xing
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Wei Xu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Wei-Teh Jiang
- Department of Earth Sciences
- National Cheng Kung University
- Tainan
- PR China
| | - Zhaohui Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing 100083
| | - Guang-sheng Wang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry and Environment
- Beihang University
- Beijing 100191
- PR China
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43
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Liu M, Lv G, Chen G, Qin Y, Sun P, Zhou K, Xing X, He C. Synthesis of Cu and Ni chalcogenides and evaluation of their properties for electromagnetic wave absorption. RSC Adv 2016. [DOI: 10.1039/c6ra21341c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cu and Ni chalcogenides were synthesized by hydrothermal methods and characterized by XRD and SEM.
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Affiliation(s)
- Meng Liu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Guangyi Chen
- School of Automotive Engineering
- State Key Laboratory of Structural Analysis for Industrial Equipment
- Dalian University of Technology
- Dalian 116024
- China
| | - Yangfan Qin
- School of Automotive Engineering
- State Key Laboratory of Structural Analysis for Industrial Equipment
- Dalian University of Technology
- Dalian 116024
- China
| | - Peng Sun
- School of Automotive Engineering
- State Key Laboratory of Structural Analysis for Industrial Equipment
- Dalian University of Technology
- Dalian 116024
- China
| | - Kaiyuan Zhou
- School of Automotive Engineering
- State Key Laboratory of Structural Analysis for Industrial Equipment
- Dalian University of Technology
- Dalian 116024
- China
| | - Xuebing Xing
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Chao He
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
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Xie J, Mei L, Deng J, Liu H, Ma B, Guan M, Liao L, Lv G. Up-conversion luminescence properties and energy transfer of Tm3+/Yb3+ co-doped BaLa2ZnO5. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.07.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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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Wu L, Liao L, Lv G, Qin F. Stability and pH-independence of nano-zero-valent iron intercalated montmorillonite and its application on Cr(VI) removal. J Contam Hydrol 2015; 179:1-9. [PMID: 26011800 DOI: 10.1016/j.jconhyd.2015.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 12/18/2013] [Revised: 04/22/2015] [Accepted: 05/05/2015] [Indexed: 06/04/2023]
Abstract
Composite of nano-zero-valent iron and montmorillonite (NZVI/MMT) was prepared by inserting NZVI into the interlayer of montmorillonite. The unique structure montmorillonite with isolated exchangeable Fe(III) cations residing near the sites of structural negative charges inhibited the agglomeration of ZVI and result in the formation of ZVI particles in the montmorillonite interlayer regions. NZVI/MMT was demonstrated to possess large specific surface area and outstanding reducibility that encourage rapid and stable reaction with Cr (VI). Besides, the intercalation also makes NZVI well dispersed and more stable in the interlayer, thereby improving the reaction capacity by 16 times. The effects of pH value, initial concentration of Cr (VI) and reaction time on Cr (VI) removal have also been investigated in detail. According to PXRD and XPS characterization, NZVI/Cr (VI) redox reaction occurred in the interlayer of MMT. The study of NZVI/MMT is instrumental to the development of remediation technologies for persistent environmental contaminants.
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Affiliation(s)
- Limei Wu
- School of Materials Sciences and Technology, China University of Geosciences, Beijing, China 100083
| | - Libing Liao
- School of Materials Sciences and Technology, China University of Geosciences, Beijing, China 100083.
| | - Guocheng Lv
- School of Materials Sciences and Technology, China University of Geosciences, Beijing, China 100083.
| | - Faxiang Qin
- 1D Nanomaterials Group, National Institute for Material Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
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Wu L, Liao L, Lv G. Influence of interlayer cations on organic intercalation of montmorillonite. J Colloid Interface Sci 2015; 454:1-7. [PMID: 26001131 DOI: 10.1016/j.jcis.2015.04.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [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: 01/30/2015] [Revised: 04/09/2015] [Accepted: 04/12/2015] [Indexed: 10/23/2022]
Abstract
The influence of the types of interlayer cations on organic intercalation of montmorillonite (Mt) was studied in this paper. The distribution of Na(+), K(+), Mg(2+), Ca(2+) and Fe(3+) in montmorillonite interlayer, their interaction with structure layers and the effect of interlayer cations on the basal spacing of Mt, the amount of binding water for different interlayer cations and the binding force between them were investigated systematically. 1-Hexadecy1-3-methylimidazolium chloride monohydrate (C16mimCl) was intercalated into montmorillonites with different interlayer cations. The influence of interlayer cations on organic intercalation was investigated. Molecular dynamics (MD) modeling was used to speculate the interlayer microstructures of the organically intercalated Mt with different interlayer cations. These simulations help to predict the microstructure of organo-Mt and guide their relevant engineering applications.
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Affiliation(s)
- Limei Wu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
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48
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Han X, Liu M, Wang S, Qian X, Lv G, Ma L, Zeng C, Shi Y. An Integrative Analysis of the Putative Gefitinib-Resistant Genes in a Lung Cancer Cell Line Model System. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv043.01] [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] [Indexed: 11/13/2022] Open
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Affiliation(s)
- Zhaohui Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 29 Xueyuan Road, Beijing, China 100083
- Geosciences Department, University of Wisconsin-Parkside, Kenosha, WI 53144, USA
- Department of Earth Science, National Cheng Kung University, 1 University Road, Tainan, Taiwan 70101
| | - Nicole M. Fitzgerald
- Geosciences Department, University of Wisconsin-Parkside, Kenosha, WI 53144, USA
| | - Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 29 Xueyuan Road, Beijing, China 100083
| | - Wei-Teh Jiang
- Department of Earth Science, National Cheng Kung University, 1 University Road, Tainan, Taiwan 70101
| | - Limei Wu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 29 Xueyuan Road, Beijing, China 100083
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Chen Y, Yu C, Lv G, Cao H, Yang S, Zhang Y, Yu J, Pan X, Li L. Rapid large-scale culturing of microencapsulated hepatocytes: a promising approach for cell-based hepatic support. Transplant Proc 2015; 46:1649-57. [PMID: 24935342 DOI: 10.1016/j.transproceed.2014.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 03/13/2014] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The efficacy of any bioartificial liver device requires both rapid production and proper bioactivity of the cells for the bioreactor. The goal of this study was to observe the effect of spinner speed and cell density on the proliferation of microencapsulated immortalized human hepatocytes (HepLL) and human hepatoma (HepG2) cells. MATERIALS AND METHODS Alginate-chitosan microcapsulated HepG2 and HepLL cells were randomly divided into 2 groups, and each group was further divided into 8 subgroups according to embedded cell density and spinner speed. The growth, metabolism, and functions of the encapsulated cells in each group were evaluated. RESULTS In each group, the cell number, ammonium removal, albumin synthesis, and diazepam clearance increased significantly with the spinner speed, whereas embedded cell density had no impact. Albumin synthesis, removal of ammonium, and diazepam clearance were significantly higher in the microencapsulated HepLL groups than in HepG2 cells at any time point, without any significant difference in cell numbers. CONCLUSIONS Spinner culture significantly promoted microencapsulated HepLL and HepG2 cell bioactivity. Wrapped cells had optimal function on day 10 in rolling culture groups. These data show that HepLL cells would be a promising candidate for cell-based liver support therapy.
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Affiliation(s)
- Y Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China; Infectious Disease Department, The First Affiliated Hospital, Xiamen University, Xiamen, Fujian, China
| | - C Yu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - G Lv
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - H Cao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - S Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Y Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - J Yu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - X Pan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - L Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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