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Biomass Chitosan-Based Tubular/Sheet Superhydrophobic Aerogels Enable Efficient Oil/Water Separation

Water pollution, which is caused by leakage of oily substances, has been recognized as one of the most serious global environmental pollutions endangering the ecosystem. High-quality porous materials with superwettability, which are typically constructed in the form of aerogels, hold huge potential...

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Detalles Bibliográficos
Autores principales: Wang, Wenhui, Lin, Jia-Horng, Guo, Jiali, Sun, Rui, Han, Guangting, Peng, Fudi, Chi, Shan, Dong, Ting
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10137560/
https://www.ncbi.nlm.nih.gov/pubmed/37102958
http://dx.doi.org/10.3390/gels9040346
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author Wang, Wenhui
Lin, Jia-Horng
Guo, Jiali
Sun, Rui
Han, Guangting
Peng, Fudi
Chi, Shan
Dong, Ting
author_facet Wang, Wenhui
Lin, Jia-Horng
Guo, Jiali
Sun, Rui
Han, Guangting
Peng, Fudi
Chi, Shan
Dong, Ting
author_sort Wang, Wenhui
collection PubMed
description Water pollution, which is caused by leakage of oily substances, has been recognized as one of the most serious global environmental pollutions endangering the ecosystem. High-quality porous materials with superwettability, which are typically constructed in the form of aerogels, hold huge potential in the field of adsorption and removal of oily substances form water. Herein, we developed a facile strategy to fabricate a novel biomass absorbent with a layered tubular/sheet structure for efficient oil/water separation. The aerogels were fabricated by assembling hollow poplar catkin fiber into chitosan sheets using a directional freeze-drying method. The obtained aerogels were further wrapped with -CH(3)-ended siloxane structures using CH(3)SiCl(3). This superhydrophobic aerogel (CA ≈ 154 ± 0.4°) could rapidly trap and remove oils from water with a large sorption range of 33.06–73.22 g/g. The aerogel facilitated stable oil recovery (90.07–92.34%) by squeezing after 10 sorption-desorption cycles because of its mechanical robustness (91.76% strain remaining after 50 compress-release cycles). The novel design, low cost, and sustainability of the aerogel provide an efficient and environmentally friendly solution for handling oil spills.
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spelling pubmed-101375602023-04-28 Biomass Chitosan-Based Tubular/Sheet Superhydrophobic Aerogels Enable Efficient Oil/Water Separation Wang, Wenhui Lin, Jia-Horng Guo, Jiali Sun, Rui Han, Guangting Peng, Fudi Chi, Shan Dong, Ting Gels Article Water pollution, which is caused by leakage of oily substances, has been recognized as one of the most serious global environmental pollutions endangering the ecosystem. High-quality porous materials with superwettability, which are typically constructed in the form of aerogels, hold huge potential in the field of adsorption and removal of oily substances form water. Herein, we developed a facile strategy to fabricate a novel biomass absorbent with a layered tubular/sheet structure for efficient oil/water separation. The aerogels were fabricated by assembling hollow poplar catkin fiber into chitosan sheets using a directional freeze-drying method. The obtained aerogels were further wrapped with -CH(3)-ended siloxane structures using CH(3)SiCl(3). This superhydrophobic aerogel (CA ≈ 154 ± 0.4°) could rapidly trap and remove oils from water with a large sorption range of 33.06–73.22 g/g. The aerogel facilitated stable oil recovery (90.07–92.34%) by squeezing after 10 sorption-desorption cycles because of its mechanical robustness (91.76% strain remaining after 50 compress-release cycles). The novel design, low cost, and sustainability of the aerogel provide an efficient and environmentally friendly solution for handling oil spills. MDPI 2023-04-18 /pmc/articles/PMC10137560/ /pubmed/37102958 http://dx.doi.org/10.3390/gels9040346 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Wenhui
Lin, Jia-Horng
Guo, Jiali
Sun, Rui
Han, Guangting
Peng, Fudi
Chi, Shan
Dong, Ting
Biomass Chitosan-Based Tubular/Sheet Superhydrophobic Aerogels Enable Efficient Oil/Water Separation
title Biomass Chitosan-Based Tubular/Sheet Superhydrophobic Aerogels Enable Efficient Oil/Water Separation
title_full Biomass Chitosan-Based Tubular/Sheet Superhydrophobic Aerogels Enable Efficient Oil/Water Separation
title_fullStr Biomass Chitosan-Based Tubular/Sheet Superhydrophobic Aerogels Enable Efficient Oil/Water Separation
title_full_unstemmed Biomass Chitosan-Based Tubular/Sheet Superhydrophobic Aerogels Enable Efficient Oil/Water Separation
title_short Biomass Chitosan-Based Tubular/Sheet Superhydrophobic Aerogels Enable Efficient Oil/Water Separation
title_sort biomass chitosan-based tubular/sheet superhydrophobic aerogels enable efficient oil/water separation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10137560/
https://www.ncbi.nlm.nih.gov/pubmed/37102958
http://dx.doi.org/10.3390/gels9040346
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