A novel approach for synthesis of TiO2-graphene nanocomposites and their photoelectrical properties

被引：42
|
作者：
Zou, Fei
Yu, Yuan
Cao, Na
Wu, Liangzhuan
Zhi, Jinfang [1 ]
机构：
[1] Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China
来源：
SCRIPTA MATERIALIA | 2011年 / 64卷 / 07期
关键词：
Graphene; Electro-optical effects; Nanocomposite; Titanium dioxide; Synthesis; CHARGE SEPARATION; GRAPHENE OXIDE; CARBON; REDUCTION; FILMS; NANOPARTICLES; CATALYSTS; FACILE;
D O I：
10.1016/j.scriptamat.2010.12.003
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
TiO2-graphene nanocomposites were synthesized by refluxing mixture solutions of graphene oxide and peroxotitanium complexes. Transmission electron microscopy experiments showed that TiO2 nanoparticals were dispersed uniformly on the graphene plane. Fluorescence emission spectra and photoelectrical experiments verified that the TiO2-graphene nanocomposites possesses better charge separation capability than pure TiO2. The photocurrent varies with the amount of graphene in the TiO2-graphene nanocomposite and a saturated photocurrent density of about 1.48 mu A cm(-2) is obtained, which is about three times higher than that obtained on a TiO2/FTO electrode. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：621 / 624
页数：4
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