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Ultra-Light GO@KGM Aerogels for Oil–Water Separation Based on CVD Modification

[Image: see text] Nowadays, oil pollution of water caused by illegal discharges or accidental events occurs frequently, and the waste of resources and environmental pollution cannot be ignored, so effective oil–water separation methods are needed to cope with such incidents. To solve these problems,...

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Autores principales: Shen, Fangyuan, Chen, Chunyan, Chen, Wanxin, Liu, Qian, Chen, Chunlin, Xiao, Guoqing, Liu, Yuheng, Zhou, Jian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9026091/
https://www.ncbi.nlm.nih.gov/pubmed/35474793
http://dx.doi.org/10.1021/acsomega.2c01080
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author Shen, Fangyuan
Chen, Chunyan
Chen, Wanxin
Liu, Qian
Chen, Chunlin
Xiao, Guoqing
Liu, Yuheng
Zhou, Jian
author_facet Shen, Fangyuan
Chen, Chunyan
Chen, Wanxin
Liu, Qian
Chen, Chunlin
Xiao, Guoqing
Liu, Yuheng
Zhou, Jian
author_sort Shen, Fangyuan
collection PubMed
description [Image: see text] Nowadays, oil pollution of water caused by illegal discharges or accidental events occurs frequently, and the waste of resources and environmental pollution cannot be ignored, so effective oil–water separation methods are needed to cope with such incidents. To solve these problems, this paper investigated an aerogel made from a plant polysaccharide, konjac glucomannan (KGM), supplemented with graphene oxide (GO), to improve the mechanical properties. Finally, a hydrophobic layer was attached to the surface and interior of the aerogel via chemical vapor deposition to improve its selectivity toward oil. Through a series of characterization methods such as infrared, X-ray photoelectron spectroscopy, and X-ray diffraction, it was demonstrated that KGM and GO were successfully cross-linked, resulting in excellent mechanical properties and directional absorption properties on oil. This composite polysaccharide aerogel could absorb oil 48 times its own weight. In addition, due to its strong mechanical properties, the gel can be reused many times, and the maximum recovery rate can be maintained at 96% after 10 cycles. Furthermore, the absorption of oil from water was conducted in a continuous mode, demonstrating the diversity of application scenarios. Generally, the results observed in this work have shown that the KGM aerogels have great potential for applications in oil–water separation.
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spelling pubmed-90260912022-04-25 Ultra-Light GO@KGM Aerogels for Oil–Water Separation Based on CVD Modification Shen, Fangyuan Chen, Chunyan Chen, Wanxin Liu, Qian Chen, Chunlin Xiao, Guoqing Liu, Yuheng Zhou, Jian ACS Omega [Image: see text] Nowadays, oil pollution of water caused by illegal discharges or accidental events occurs frequently, and the waste of resources and environmental pollution cannot be ignored, so effective oil–water separation methods are needed to cope with such incidents. To solve these problems, this paper investigated an aerogel made from a plant polysaccharide, konjac glucomannan (KGM), supplemented with graphene oxide (GO), to improve the mechanical properties. Finally, a hydrophobic layer was attached to the surface and interior of the aerogel via chemical vapor deposition to improve its selectivity toward oil. Through a series of characterization methods such as infrared, X-ray photoelectron spectroscopy, and X-ray diffraction, it was demonstrated that KGM and GO were successfully cross-linked, resulting in excellent mechanical properties and directional absorption properties on oil. This composite polysaccharide aerogel could absorb oil 48 times its own weight. In addition, due to its strong mechanical properties, the gel can be reused many times, and the maximum recovery rate can be maintained at 96% after 10 cycles. Furthermore, the absorption of oil from water was conducted in a continuous mode, demonstrating the diversity of application scenarios. Generally, the results observed in this work have shown that the KGM aerogels have great potential for applications in oil–water separation. American Chemical Society 2022-04-05 /pmc/articles/PMC9026091/ /pubmed/35474793 http://dx.doi.org/10.1021/acsomega.2c01080 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Shen, Fangyuan
Chen, Chunyan
Chen, Wanxin
Liu, Qian
Chen, Chunlin
Xiao, Guoqing
Liu, Yuheng
Zhou, Jian
Ultra-Light GO@KGM Aerogels for Oil–Water Separation Based on CVD Modification
title Ultra-Light GO@KGM Aerogels for Oil–Water Separation Based on CVD Modification
title_full Ultra-Light GO@KGM Aerogels for Oil–Water Separation Based on CVD Modification
title_fullStr Ultra-Light GO@KGM Aerogels for Oil–Water Separation Based on CVD Modification
title_full_unstemmed Ultra-Light GO@KGM Aerogels for Oil–Water Separation Based on CVD Modification
title_short Ultra-Light GO@KGM Aerogels for Oil–Water Separation Based on CVD Modification
title_sort ultra-light go@kgm aerogels for oil–water separation based on cvd modification
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9026091/
https://www.ncbi.nlm.nih.gov/pubmed/35474793
http://dx.doi.org/10.1021/acsomega.2c01080
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