期刊
CARBON
卷 139, 期 -, 页码 824-832出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2018.07.048
关键词
Graphene; Bacterial cellulose; Absorbent; Self-assembly; Water treatment
资金
- National Natural Science Foundation of China [51572187, 51662009]
- Key Project of Natural Science Foundation of Jiangxi Province [20161ACB20018]
Development of high performance absorbents is of particular importance in environmental protection. Herein, we report a mechanically robust, ultralight, and recyclable absorbent with highly dispersed two-dimensional (2D) few-layer reduced graphene oxide (FrGO) in a three-dimensional (3D) carbonized bacterial cellulose (CBC) monolith via a novel step-by-step in situ biosynthesis (SBSB) method followed by carbonization. The step-by-step self-assembly produces a mechanically entangled nanostructure between FrGO and CBC nanofibers. The self-assembled CBC/FrGO nanocomposite absorbent possesses multi-scaled pores and large specific area. When used as absorbents, the monolithic CBC/FrGO aerogel exhibits excellent recyclability and high absorption capacities toward numerous oils and organic solvents. These properties, together with the green, cost-effective and scalable production process, make it very promising as a superior all-carbon absorbent for environmental protection. (C) 2018 Elsevier Ltd. All rights reserved.
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