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Facile Fabrication of Superhydrophobic Cross-Linked Nanocellulose Aerogels for Oil–Water Separation
A facile and environmental-friendly approach was developed for the preparation of the cross-linked nanocellulose aerogel through the freeze-drying process and subsequent esterification. The as-prepared aerogel had a three-dimensional cellular microstructure with ultra-low density of 6.05 mg·cm(−3) a...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7921982/ https://www.ncbi.nlm.nih.gov/pubmed/33669607 http://dx.doi.org/10.3390/polym13040625 |
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author | Shang, Qianqian Chen, Jianqiang Hu, Yun Yang, Xiaohui Hu, Lihong Liu, Chengguo Ren, Xiaoli Zhou, Yonghong |
author_facet | Shang, Qianqian Chen, Jianqiang Hu, Yun Yang, Xiaohui Hu, Lihong Liu, Chengguo Ren, Xiaoli Zhou, Yonghong |
author_sort | Shang, Qianqian |
collection | PubMed |
description | A facile and environmental-friendly approach was developed for the preparation of the cross-linked nanocellulose aerogel through the freeze-drying process and subsequent esterification. The as-prepared aerogel had a three-dimensional cellular microstructure with ultra-low density of 6.05 mg·cm(−3) and high porosity (99.61%). After modifying by chemical vapor deposition (CVD) with hexadecyltrimethoxysilane (HTMS), the nanocellulose aerogel displayed stable super-hydrophobicity and super-oleophilicity with water contact angle of 151°, and had excellent adsorption performance for various oil and organic solvents with the adsorption capacity of 77~226 g/g. Even after 30 cycles, the adsorption capacity of the nanocellulose aerogel for chloroform was as high as 170 g/g, indicating its outstanding reusability. Therefore, the superhydrophobic cross-linked nanocellulose aerogel is a promising oil adsorbent for wastewater treatment. |
format | Online Article Text |
id | pubmed-7921982 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-79219822021-03-03 Facile Fabrication of Superhydrophobic Cross-Linked Nanocellulose Aerogels for Oil–Water Separation Shang, Qianqian Chen, Jianqiang Hu, Yun Yang, Xiaohui Hu, Lihong Liu, Chengguo Ren, Xiaoli Zhou, Yonghong Polymers (Basel) Article A facile and environmental-friendly approach was developed for the preparation of the cross-linked nanocellulose aerogel through the freeze-drying process and subsequent esterification. The as-prepared aerogel had a three-dimensional cellular microstructure with ultra-low density of 6.05 mg·cm(−3) and high porosity (99.61%). After modifying by chemical vapor deposition (CVD) with hexadecyltrimethoxysilane (HTMS), the nanocellulose aerogel displayed stable super-hydrophobicity and super-oleophilicity with water contact angle of 151°, and had excellent adsorption performance for various oil and organic solvents with the adsorption capacity of 77~226 g/g. Even after 30 cycles, the adsorption capacity of the nanocellulose aerogel for chloroform was as high as 170 g/g, indicating its outstanding reusability. Therefore, the superhydrophobic cross-linked nanocellulose aerogel is a promising oil adsorbent for wastewater treatment. MDPI 2021-02-19 /pmc/articles/PMC7921982/ /pubmed/33669607 http://dx.doi.org/10.3390/polym13040625 Text en © 2021 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Shang, Qianqian Chen, Jianqiang Hu, Yun Yang, Xiaohui Hu, Lihong Liu, Chengguo Ren, Xiaoli Zhou, Yonghong Facile Fabrication of Superhydrophobic Cross-Linked Nanocellulose Aerogels for Oil–Water Separation |
title | Facile Fabrication of Superhydrophobic Cross-Linked Nanocellulose Aerogels for Oil–Water Separation |
title_full | Facile Fabrication of Superhydrophobic Cross-Linked Nanocellulose Aerogels for Oil–Water Separation |
title_fullStr | Facile Fabrication of Superhydrophobic Cross-Linked Nanocellulose Aerogels for Oil–Water Separation |
title_full_unstemmed | Facile Fabrication of Superhydrophobic Cross-Linked Nanocellulose Aerogels for Oil–Water Separation |
title_short | Facile Fabrication of Superhydrophobic Cross-Linked Nanocellulose Aerogels for Oil–Water Separation |
title_sort | facile fabrication of superhydrophobic cross-linked nanocellulose aerogels for oil–water separation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7921982/ https://www.ncbi.nlm.nih.gov/pubmed/33669607 http://dx.doi.org/10.3390/polym13040625 |
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