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Hydrothermal Synthesis of Cellulose Nanocrystal-Grafted-Acrylic Acid Aerogels with Superabsorbent Properties

In this work, we applied a fast and simple method to synthesize cellulose nanocrystal (CNC) aerogels, via a hydrothermal strategy followed by freeze drying. The characteristics and morphology of the obtained CNC-g-AA aerogels were affected by the hydrothermal treatment time, volume of added AA (acry...

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Autores principales: Liu, Xuehua, Yang, Rue, Xu, Mincong, Ma, Chunhui, Li, Wei, Yin, Yu, Huang, Qiongtao, Wu, Yiqiang, Li, Jian, Liu, Shouxin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6404061/
https://www.ncbi.nlm.nih.gov/pubmed/30961093
http://dx.doi.org/10.3390/polym10101168
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author Liu, Xuehua
Yang, Rue
Xu, Mincong
Ma, Chunhui
Li, Wei
Yin, Yu
Huang, Qiongtao
Wu, Yiqiang
Li, Jian
Liu, Shouxin
author_facet Liu, Xuehua
Yang, Rue
Xu, Mincong
Ma, Chunhui
Li, Wei
Yin, Yu
Huang, Qiongtao
Wu, Yiqiang
Li, Jian
Liu, Shouxin
author_sort Liu, Xuehua
collection PubMed
description In this work, we applied a fast and simple method to synthesize cellulose nanocrystal (CNC) aerogels, via a hydrothermal strategy followed by freeze drying. The characteristics and morphology of the obtained CNC-g-AA aerogels were affected by the hydrothermal treatment time, volume of added AA (acrylic acid), and the mass fraction of the CNCs. The formation mechanism of the aerogels involved free radical graft copolymerization of AA and CNCs with the cross-linker N,N′-methylene bis(acrylamide) (MBA) during the hydrothermal process. The swelling ratio of the CNC-g-AA aerogels was as high as 495:1, which is considerably greater than that of other polysaccharide-g-AA aerogels systems. Moreover, the CNC-g-AA aerogels exhibited an excellent methyl blue (MB) adsorption capacity and the ability to undergo rapid desorption/regeneration. The maximum adsorption capacity of the CNC-g-AA aerogels for MB was greater than 400 mg/g. Excellent regeneration performance further indicates the promise of our CNC-g-AA aerogels as an adsorbent for applications in environmental remediation.
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spelling pubmed-64040612019-04-02 Hydrothermal Synthesis of Cellulose Nanocrystal-Grafted-Acrylic Acid Aerogels with Superabsorbent Properties Liu, Xuehua Yang, Rue Xu, Mincong Ma, Chunhui Li, Wei Yin, Yu Huang, Qiongtao Wu, Yiqiang Li, Jian Liu, Shouxin Polymers (Basel) Article In this work, we applied a fast and simple method to synthesize cellulose nanocrystal (CNC) aerogels, via a hydrothermal strategy followed by freeze drying. The characteristics and morphology of the obtained CNC-g-AA aerogels were affected by the hydrothermal treatment time, volume of added AA (acrylic acid), and the mass fraction of the CNCs. The formation mechanism of the aerogels involved free radical graft copolymerization of AA and CNCs with the cross-linker N,N′-methylene bis(acrylamide) (MBA) during the hydrothermal process. The swelling ratio of the CNC-g-AA aerogels was as high as 495:1, which is considerably greater than that of other polysaccharide-g-AA aerogels systems. Moreover, the CNC-g-AA aerogels exhibited an excellent methyl blue (MB) adsorption capacity and the ability to undergo rapid desorption/regeneration. The maximum adsorption capacity of the CNC-g-AA aerogels for MB was greater than 400 mg/g. Excellent regeneration performance further indicates the promise of our CNC-g-AA aerogels as an adsorbent for applications in environmental remediation. MDPI 2018-10-19 /pmc/articles/PMC6404061/ /pubmed/30961093 http://dx.doi.org/10.3390/polym10101168 Text en © 2018 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
Liu, Xuehua
Yang, Rue
Xu, Mincong
Ma, Chunhui
Li, Wei
Yin, Yu
Huang, Qiongtao
Wu, Yiqiang
Li, Jian
Liu, Shouxin
Hydrothermal Synthesis of Cellulose Nanocrystal-Grafted-Acrylic Acid Aerogels with Superabsorbent Properties
title Hydrothermal Synthesis of Cellulose Nanocrystal-Grafted-Acrylic Acid Aerogels with Superabsorbent Properties
title_full Hydrothermal Synthesis of Cellulose Nanocrystal-Grafted-Acrylic Acid Aerogels with Superabsorbent Properties
title_fullStr Hydrothermal Synthesis of Cellulose Nanocrystal-Grafted-Acrylic Acid Aerogels with Superabsorbent Properties
title_full_unstemmed Hydrothermal Synthesis of Cellulose Nanocrystal-Grafted-Acrylic Acid Aerogels with Superabsorbent Properties
title_short Hydrothermal Synthesis of Cellulose Nanocrystal-Grafted-Acrylic Acid Aerogels with Superabsorbent Properties
title_sort hydrothermal synthesis of cellulose nanocrystal-grafted-acrylic acid aerogels with superabsorbent properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6404061/
https://www.ncbi.nlm.nih.gov/pubmed/30961093
http://dx.doi.org/10.3390/polym10101168
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