Issue 26, 2013
From the journal:

Journal of Materials Chemistry A

Three-dimensional graphene-based aerogels prepared by a self-assembly process and its excellent catalytic and absorbing performance†

Tao Wu,a   Mingxi Chen,a   Lei Zhang,a   Xiaoyang Xu,a   Yu Liu,a   Jing Yan,*a   Wei Wangb  and  Jianping Gao*a  

* Corresponding authors

a School of Science, Tianjin University, Tianjin, 300072, P. R. China
E-mail: jianpinggao2012@126.com, yanjingls2012@163.com
Fax: +86 22 274 034 75

b School of Chemical Engineering, Tianjin University, Tianjin, 300072, P. R. China

Abstract

A simple one-step method for fabricating graphene-based hydrogels (GHs) with interconnected 3D networks using Cu nanoparticles was developed. During this process, graphene oxide (GO) was reduced by Cu nanoparticles to form reduced GO (rGO) which then self-assembled to form GHs. Meanwhile, the Cu nanoparticles were oxidized to form copper(I) oxide which deposited onto the rGO sheets and became imbedded in the GHs. The GHs were transformed to graphene-based aerogels (GAs) by a green freeze-drying method. The composition of the GAs can be easily adjusted by simply changing the initial amount of Cu nanoparticles or the concentration of the GO suspension. The GAs not only possess good catalytic performance for the catalytic reduction of 4-nitrophenol and the photocatalytic degradation of methyl orange but also have excellent capacities for removing various oils and dyes from water.

Graphical abstract: Three-dimensional graphene-based aerogels prepared by a self-assembly process and its excellent catalytic and absorbing performance

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Article information

DOI
https://doi.org/10.1039/C3TA10989E
Article type
Paper
Submitted
08 Mar 2013
Accepted
19 Apr 2013
First published
19 Apr 2013

J. Mater. Chem. A, 2013,1, 7612-7621

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Three-dimensional graphene-based aerogels prepared by a self-assembly process and its excellent catalytic and absorbing performance

T. Wu, M. Chen, L. Zhang, X. Xu, Y. Liu, J. Yan, W. Wang and J. Gao, J. Mater. Chem. A, 2013, 1, 7612 DOI: 10.1039/C3TA10989E

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