Sonochemical assisted synthesis of a novel TiO2/graphene composite for solar energy conversion

被引：30

作者：

Min, YuLin ^{[1
,2
]}

Zhang, Kan ^{[3
]}

Chen, LiHua ^{[1
,2
]}

Chen, YouCun ^{[1
,2
]}

Zhang, YuanGuang ^{[1
,2
]}

机构：

[1] Anqing Normal Univ, Sch Chem & Chem Engn, Anqing 246011, Peoples R China

[2] Anqing Normal Univ, Prov Key Lab Funct Coordinat Cpds, Anqing 246011, Peoples R China

[3] Sungkyunkwan Univ, Dept Chem Engn, Suwon 440746, Gyeonggi Do, South Korea

来源：

SYNTHETIC METALS | 2012年 / 162卷 / 9-10期

基金：

美国国家科学基金会;

关键词：

Sonochemical synthesis; TiO2/graphene; PEC activity; Solar energy conversion; REDUCED GRAPHENE OXIDE; SINGLE-LAYER; GRAPHITE; NANOCOMPOSITES; TIO2; REDUCTION; PHOTOCATALYSIS; NANOPARTICLES; NANOCRYSTALS; PERFORMANCE;

D O I：

10.1016/j.synthmet.2012.03.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, sonication as a common laboratory tool was used to drive chemical reaction between graphene oxide (GO) and titanium alkoxide. Firstly, we activated the GO using poly (acrylic acid) (PAA) in order to increase carboxylic groups on graphene surface. Secondly, a hydrolysis product of Ti(OH)(x) from tetrabutyl titanate (TNB) were assembled on activated GO surface using sonochemical reaction (100 W, 50 Hz). After annealed at 400 C in Ar, a high quality TiO2/graphene composite with great visible response were obtained, which was attributed to sonication improving GO sheets dispersion degree and accelerating chemical reaction resulted in partial formation of a Ti-C and Ti-O-C bonds. The results of both the Rh.B degradation and photocurrent tests indicated that the photocatalytic and photoelectrochemical (PEC) activities of the TiO2/graphene composite are much higher than those of commercial P25. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.

引用

页码：827 / 833

页数：7

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