One-step hydrothermal synthesis of anatase TiO2/reduced graphene oxide nanocomposites with enhanced photocatalytic activity

被引：176
作者：
Liang, Dayu [1 ]
Cui, Can [1 ]
Hu, Haihua [2 ]
Wang, Yaping [1 ]
Xu, Sheng [1 ]
Ying, Beili [1 ]
Li, Peigang [1 ]
Lu, Bingqing [1 ]
Shen, Honglei [1 ]
机构：
[1] Zhejiang Sci Tech Univ, Dept Phys, Ctr Optoelect Mat & Devices, Hangzhou 310018, Zhejiang, Peoples R China
[2] Zhejiang Univ City Coll, Hangzhou 310015, Zhejiang, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 582卷
基金：
中国国家自然科学基金;
关键词：
TiO2; Reduced graphene oxide; Hydrothermal; Photocatalysis; TIO2-GRAPHENE NANOCOMPOSITES; TIO2; DEGRADATION; REDUCTION; FILMS; PERFORMANCE; DEFECTS; SHEETS; UV;
D O I：
10.1016/j.jallcom.2013.08.062
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A facile and efficient one-step hydrothermal approach has been developed to synthesize chemically bonded TiO2/reduced graphene oxide (RGO) nanocomposites with Ti(SO4)(2) and graphene oxide (GO) as precursors and ethanol/water solvent as a reducing agent. This approach aims to realize a partial reduction of GO and a growth of anatase TiO2 nanoparticles on RGO sheets simultaneously. The morphology and microstructure characterizations of TiO2/RGO nanocomposites reveal that this method leads to close interfacial contact of TiO2/RGO and efficient dispersion of TiO2 nanocrystals on the surface of RGO sheets. The TiO2/RGO nanocomposites exhibit superior photocatalytic activity compared to bare TiO2 nanoparticles and a mechanical mixing TiO2 + RGO sample in the degradation of Rhodamine B. Based on the photoluminescence spectrum and photocurrent response measurements, the enhanced photocatalytic activity of TiO2/RGO is mainly attributed to the excellent electron trapping and transportation properties of RGO. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：236 / 240
页数：5
相关论文
共 38 条
[1]   Photocatalytic Reduction of Graphene Oxide Nanosheets on TiO2 Thin Film for Photoinactivation of Bacteria in Solar Light Irradiation [J].
Akhavan, O. ;
Ghaderi, E. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (47) :20214-20220
[2]   Improving the Photocatalytic Performance of Mesoporous Titania Films by Modification with Gold Nanostructures [J].
Bannat, Inga ;
Wessels, Katrin ;
Oekermann, Torsten ;
Rathousky, Jiri ;
Bahnemann, Detlef ;
Wark, Michael .
CHEMISTRY OF MATERIALS, 2009, 21 (08) :1645-1653
[3]   Understanding the Enhancement in Photoelectrochemical Properties of Photocatalytically Prepared TiO2-Reduced Graphene Oxide Composite [J].
Bell, Nicholas J. ;
Ng, Yun Hau ;
Du, Aijun ;
Coster, Hans ;
Smith, Sean C. ;
Amal, Rose .
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (13) :6004-6009
[4]   Preparation of graphene by the rapid and mild thermal reduction of graphene oxide induced by microwaves [J].
Chen, Wufeng ;
Yan, Lifeng ;
Bangal, Prakriti R. .
CARBON, 2010, 48 (04) :1146-1152
[5]   Nanoparticles enwrapped with nanotubes: A unique architecture of CdS/titanate nanotubes for efficient photocatalytic hydrogen production from water [J].
Chen, Yubin ;
Wang, Lianzhou ;
Lu, Gaoqing ;
Yao, Xiangdong ;
Guo, Liejin .
JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (13) :5134-5141
[6]   A green approach to the synthesis of reduced graphene oxide nanosheets under UV irradiation [J].
Ding, Y. H. ;
Zhang, P. ;
Zhuo, Q. ;
Ren, H. M. ;
Yang, Z. M. ;
Jiang, Y. .
NANOTECHNOLOGY, 2011, 22 (21)
[7]   The chemistry of graphene oxide [J].
Dreyer, Daniel R. ;
Park, Sungjin ;
Bielawski, Christopher W. ;
Ruoff, Rodney S. .
CHEMICAL SOCIETY REVIEWS, 2010, 39 (01) :228-240
[8]   TiO2 photocatalysis and related surface phenomena [J].
Fujishima, Akira ;
Zhang, Xintong ;
Tryk, Donald A. .
SURFACE SCIENCE REPORTS, 2008, 63 (12) :515-582
[9]   Combustion synthesis of graphene oxide-TiO2 hybrid materials for photodegradation of methyl orange [J].
Gao, Yanyan ;
Pu, Xipeng ;
Zhang, Dafeng ;
Ding, Guqiao ;
Shao, Xin ;
Ma, Jing .
CARBON, 2012, 50 (11) :4093-4101
[10]   Graphene: Status and Prospects [J].
Geim, A. K. .
SCIENCE, 2009, 324 (5934) :1530-1534
1234