P25-graphene hydrogels: Room-temperature synthesis and application for removal of methylene blue from aqueous solution

被引：178
作者：
Hou, Chengyi [1 ,2 ]
Zhang, Qinghong [2 ]
Li, Yaogang [1 ]
Wang, Hongzhi [2 ]
机构：
[1] Donghua Univ, Coll Mat Sci & Engn, Shanghai 201620, Peoples R China
[2] Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2012年 / 205卷
关键词：
Graphene; Hydrogel; Titanium dioxide; Photocatalyst; Environmental protection; GRAPHENE; CARBON; COMPOSITE; SHEETS;
D O I：
10.1016/j.jhazmat.2011.12.071
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Herein we report a room-temperature synthesis of chemically bonded TiO2 (P25)-graphene composite hydrogels and their use as high performance visible light photocatalysts. The three-dimensional (3D) TiO2-carbon composite exhibits a significant enhancement in the reaction rate in the decontamination of methylene blue, compared to the bare P25. The 3D P25-graphene hydrogel is much easier to prepare and apply as a macroscopic device, compared to the 2D P25-graphene sheets. This work could provide new insights into the room-temperature synthesis of graphene-based materials. As a kind of the novel 3D graphene-based composite, the obtained high performance P25-graphene gel could be widely used in the environmental protection issues. (C) 2012 Published by Elsevier B.V.
引用
收藏
页码：229 / 235
页数：7
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