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Wang D, Zhang G, Dai Z, Zhou L, Bian P, Zheng K, Wu Z, Cai D. Sandwich-like Nanosystem for Simultaneous Removal of Cr(VI) and Cd(II) from Water and Soil. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18316-18326. [PMID: 29733194 DOI: 10.1021/acsami.8b03379] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, a novel nanosystem with a sandwich-like structure was synthesized via face-to-face combination of two pieces of waste cotton fabrics (CFs) carrying ferrous sulfide (FeS) and carboxyl-functionalized ferroferric oxide microsphere (CFFM), respectively, and the obtained nanosystem was named as FeS/CFFM/CF. Therein, FeS has high reduction and adsorption capabilities for hexavalent chromium (Cr(VI)), CFFM possesses a high adsorption ability on cadmium ion (Cd(II)) through electrostatic attraction and chelation, and CF displays high immobilization ability for FeS and CFFM and adsorption performance on Cd(II). FeS/CFFM/CF could simultaneously remove Cr(VI) and Cd(II) from water and inhibit the uptake of Cr and Cd by fish and water spinach, ensuring the food safety. Besides, this technology could efficiently control the migration of Cr(VI) and Cd(II) in the sand-soil mixture, which was favorable to prevent their wide diffusion. Importantly, FeS/CFFM/CF possessed a high flexibility and could be conveniently produced with needed scale and shape and easily separated from water and soil, displaying a promising approach to remediate Cr(VI)-/Cd(II)-contaminated water and soil and a huge application potential.
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Affiliation(s)
- Dongfang Wang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- University of Science and Technology of China , Hefei , Anhui 230026 , People's Republic of China
| | - Guilong Zhang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
| | - Zhangyu Dai
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- University of Science and Technology of China , Hefei , Anhui 230026 , People's Republic of China
| | - Linglin Zhou
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- University of Science and Technology of China , Hefei , Anhui 230026 , People's Republic of China
| | - Po Bian
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
| | - Kang Zheng
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
| | - Zhengyan Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
| | - Dongqing Cai
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
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Lv Z, Yang S, Liu Y, Zhou J, Xing L, Chen L. The novel PEI-modified biochars and their application for the efficient elimination of Cr(VI) from aqueous solutions. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 77:2045-2056. [PMID: 29722690 DOI: 10.2166/wst.2018.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, the polyethyleneimine (PEI) was grafted onto the biochars from chestnut shells and nori via the cross-linking reaction. Scanning electron microscopy, transmission electron microscopy and Fourier transferred infrared spectroscopy analysis indicated that the PEI was successfully grafted on the surface of biochars. The PEI modified and pristine biochars were used as adsorbents to remove Cr(VI) from aqueous solutions as a function of pH, ionic strength, contact time and initial concentrations of Cr(VI) through batch technique. The strongly pH-dependent and ionic strength-independent of Cr(VI) sorption indicated that the sorption was mainly dominated by electrostatic interaction and inner-sphere surface complexation. The maximum sorption capacities of PEI modified chestnut shell and nori biochars were 141.42 and 222.84 mg/g, respectively, which were significantly higher than those of pristine biochars. The PEI grafted onto the biochars significantly enhanced Cr(VI) sorption capacity because PEI, which contains volumes of amine/imine groups, provided an excellent platform for Cr(VI) ions removal. In addition, the sorption-desorption experimental results indicated that the PEI modified biochars possessed a stable and recyclable performance. All these results manifested that the PEI modified biochars could be applied as environmentally friendly and efficient adsorbents for the removal of Cr(VI) from wastewater.
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Affiliation(s)
- Zhimin Lv
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China E-mail:
| | - Shimin Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China E-mail:
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China E-mail:
| | - Jin Zhou
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China E-mail:
| | - Lingbao Xing
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China E-mail:
| | - Lei Chen
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China E-mail:
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Wu M, Li G, Jiang X, Xiao Q, Niu M, Wang Z, Wang Y. Non-biological reduction of Cr(vi) by reacting with humic acids composted from cattle manure. RSC Adv 2017. [DOI: 10.1039/c6ra28253a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Previous studies on reduction of Cr(vi) by humic acids (HAs) have seldom used the extracts from composted animal manure.
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Affiliation(s)
- Min Wu
- State Key Laboratory of Pollution Control and Resources Reuse
- Tongji University
- Shanghai 200092
- China
| | - Gongxia Li
- State Key Laboratory of Pollution Control and Resources Reuse
- Tongji University
- Shanghai 200092
- China
| | - Xiaolin Jiang
- Shanghai Pudong Veolia Water Corporation Limited
- China
| | - Qianqian Xiao
- State Key Laboratory of Pollution Control and Resources Reuse
- Tongji University
- Shanghai 200092
- China
| | - Mingxing Niu
- State Key Laboratory of Pollution Control and Resources Reuse
- Tongji University
- Shanghai 200092
- China
| | - Zhiyuan Wang
- State Key Laboratory of Pollution Control and Resources Reuse
- Tongji University
- Shanghai 200092
- China
| | - Yayi Wang
- State Key Laboratory of Pollution Control and Resources Reuse
- Tongji University
- Shanghai 200092
- China
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