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Ultra-light nanocomposite aerogels of bacterial cellulose and reduced graphene oxide for specific absorption and separation of organic liquids

Wang, Yonggui ; Yadav, Sandeep ; Heinlein, Thorsten ; Konjik, Valentino ; Breitzke, Hergen ; Buntkowsky, Gerd ; Schneider, Jörg J. ; Zhang, Kai (2021):
Ultra-light nanocomposite aerogels of bacterial cellulose and reduced graphene oxide for specific absorption and separation of organic liquids. (Publisher's Version)
In: RSC Advances, 4 (41), pp. 21553-21558. Royal Society of Chemistry (RSC), ISSN 2046-2069,
DOI: 10.26083/tuprints-00018897,
[Article]

Abstract

Novel materials based on sustainable materials with high absorption capacity are still rare for the separation of organic liquids or oil spills and water. In this report, ultra-light nanocomposite aerogels consisting of sustainable bacterial cellulose (BC) and graphene oxide (GO) were constructed after an eco-friendly freeze-drying process for the first time. Due to the hydrophilic properties of both materials and the highly porous structure, BC/GO aerogels could highly absorb not only organic liquids, such as cyclohexane and DMF, but also water. Specific absorption for organic liquids was achieved after the reduction of GO using H₂ gas, which led to nanocomposite aerogels of BC and reduced GO. They could specifically absorb 135–150 g organic liquids per g of their own weight, even with a high content of 80% BC in the nanocomposite aerogel.

Item Type: Article
Erschienen: 2021
Creators: Wang, Yonggui ; Yadav, Sandeep ; Heinlein, Thorsten ; Konjik, Valentino ; Breitzke, Hergen ; Buntkowsky, Gerd ; Schneider, Jörg J. ; Zhang, Kai
Origin: Secondary publication service
Status: Publisher's Version
Title: Ultra-light nanocomposite aerogels of bacterial cellulose and reduced graphene oxide for specific absorption and separation of organic liquids
Language: English
Abstract:

Novel materials based on sustainable materials with high absorption capacity are still rare for the separation of organic liquids or oil spills and water. In this report, ultra-light nanocomposite aerogels consisting of sustainable bacterial cellulose (BC) and graphene oxide (GO) were constructed after an eco-friendly freeze-drying process for the first time. Due to the hydrophilic properties of both materials and the highly porous structure, BC/GO aerogels could highly absorb not only organic liquids, such as cyclohexane and DMF, but also water. Specific absorption for organic liquids was achieved after the reduction of GO using H₂ gas, which led to nanocomposite aerogels of BC and reduced GO. They could specifically absorb 135–150 g organic liquids per g of their own weight, even with a high content of 80% BC in the nanocomposite aerogel.

Journal or Publication Title: RSC Advances
Journal volume: 4
Number: 41
Publisher: Royal Society of Chemistry (RSC)
Divisions: 07 Department of Chemistry
07 Department of Chemistry > Physical Chemistry
Date Deposited: 16 Sep 2021 12:50
DOI: 10.26083/tuprints-00018897
Official URL: https://tuprints.ulb.tu-darmstadt.de/18897
URN: urn:nbn:de:tuda-tuprints-188979
Additional Information:

Supplements: 1 Textdokument, 7 Videos

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