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Amidoxime-Functionalized Macroporous Carbon Self-Refreshed Electrode Materials for Rapid and High-Capacity Removal of Heavy Metal from Water

[Image: see text] Heavy metal pollution continues to be one of the most serious environmental problems which has attracted major global concern. Here, a rapid, high-capacity, yet economical strategy for deep cleaning of heavy metals ions in water is reported based on amidoxime-functionalized macropo...

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Autores principales: Wu, Tong, Liu, Chong, Kong, Biao, Sun, Jie, Gong, Yongji, Liu, Kai, Xie, Jin, Pei, Allen, Cui, Yi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6487541/
https://www.ncbi.nlm.nih.gov/pubmed/31041392
http://dx.doi.org/10.1021/acscentsci.9b00130
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author Wu, Tong
Liu, Chong
Kong, Biao
Sun, Jie
Gong, Yongji
Liu, Kai
Xie, Jin
Pei, Allen
Cui, Yi
author_facet Wu, Tong
Liu, Chong
Kong, Biao
Sun, Jie
Gong, Yongji
Liu, Kai
Xie, Jin
Pei, Allen
Cui, Yi
author_sort Wu, Tong
collection PubMed
description [Image: see text] Heavy metal pollution continues to be one of the most serious environmental problems which has attracted major global concern. Here, a rapid, high-capacity, yet economical strategy for deep cleaning of heavy metals ions in water is reported based on amidoxime-functionalized macroporous carbon electrode materials. The active sites of our material can be self-refreshed during the electrochemical removal process, which is different from traditional methods. The novel filter device in this work can purify contaminated water very rapidly (3000 L h(–1) m(–2)), and can decrease heavy metal ion concentrations to below 5 ppb with a very short contact time (only 3 s). The original treatment efficiency of the device can be retained even after 1 week of continuous device operation. An extremely high removal capacity of over 2300 mg g(–1) can be achieved with 2–3 orders of magnitude higher efficiency than that of surface adsorption-based commercial filters without any decay. Additionally, the cost of energy consumed in our method is lower than $6.67 × 10(–3) per ton of wastewater. We envision that this approach can be routinely applied for the rapid, efficient, and thorough removal of heavy metals from both point-of-use water and industrial wastewater.
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spelling pubmed-64875412019-04-30 Amidoxime-Functionalized Macroporous Carbon Self-Refreshed Electrode Materials for Rapid and High-Capacity Removal of Heavy Metal from Water Wu, Tong Liu, Chong Kong, Biao Sun, Jie Gong, Yongji Liu, Kai Xie, Jin Pei, Allen Cui, Yi ACS Cent Sci [Image: see text] Heavy metal pollution continues to be one of the most serious environmental problems which has attracted major global concern. Here, a rapid, high-capacity, yet economical strategy for deep cleaning of heavy metals ions in water is reported based on amidoxime-functionalized macroporous carbon electrode materials. The active sites of our material can be self-refreshed during the electrochemical removal process, which is different from traditional methods. The novel filter device in this work can purify contaminated water very rapidly (3000 L h(–1) m(–2)), and can decrease heavy metal ion concentrations to below 5 ppb with a very short contact time (only 3 s). The original treatment efficiency of the device can be retained even after 1 week of continuous device operation. An extremely high removal capacity of over 2300 mg g(–1) can be achieved with 2–3 orders of magnitude higher efficiency than that of surface adsorption-based commercial filters without any decay. Additionally, the cost of energy consumed in our method is lower than $6.67 × 10(–3) per ton of wastewater. We envision that this approach can be routinely applied for the rapid, efficient, and thorough removal of heavy metals from both point-of-use water and industrial wastewater. American Chemical Society 2019-03-28 2019-04-24 /pmc/articles/PMC6487541/ /pubmed/31041392 http://dx.doi.org/10.1021/acscentsci.9b00130 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Wu, Tong
Liu, Chong
Kong, Biao
Sun, Jie
Gong, Yongji
Liu, Kai
Xie, Jin
Pei, Allen
Cui, Yi
Amidoxime-Functionalized Macroporous Carbon Self-Refreshed Electrode Materials for Rapid and High-Capacity Removal of Heavy Metal from Water
title Amidoxime-Functionalized Macroporous Carbon Self-Refreshed Electrode Materials for Rapid and High-Capacity Removal of Heavy Metal from Water
title_full Amidoxime-Functionalized Macroporous Carbon Self-Refreshed Electrode Materials for Rapid and High-Capacity Removal of Heavy Metal from Water
title_fullStr Amidoxime-Functionalized Macroporous Carbon Self-Refreshed Electrode Materials for Rapid and High-Capacity Removal of Heavy Metal from Water
title_full_unstemmed Amidoxime-Functionalized Macroporous Carbon Self-Refreshed Electrode Materials for Rapid and High-Capacity Removal of Heavy Metal from Water
title_short Amidoxime-Functionalized Macroporous Carbon Self-Refreshed Electrode Materials for Rapid and High-Capacity Removal of Heavy Metal from Water
title_sort amidoxime-functionalized macroporous carbon self-refreshed electrode materials for rapid and high-capacity removal of heavy metal from water
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6487541/
https://www.ncbi.nlm.nih.gov/pubmed/31041392
http://dx.doi.org/10.1021/acscentsci.9b00130
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