A Green and facile microwave-assisted synthesis of TiO2/graphene nanocomposite and their photocatalytic activity for methylene blue degradation

被引：23

作者：

Yang, Yuhao ^{[1
]}

Liu, Enzhou ^{[1
]}

Fan, Jun ^{[1
]}

Hu, Xiaoyun ^{[2
]}

Hou, Wenqian ^{[1
]}

Wu, Feng ^{[1
]}

Ma, Yongning ^{[1
]}

机构：

[1] NW Univ Xian, Sch Chem Engn, Xian 710069, Shaanxi, Peoples R China

[2] NW Univ Xian, Dept Phys, Xian 710069, Shaanxi, Peoples R China

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2014年 / 88卷 / 03期

基金：

中国国家自然科学基金;

关键词：

nanocomposite; TiO2; P25; graphene; photocatalysis; CARBON NANOTUBES; TIO2; WATER; REDUCTION; CATALYST; CO2;

D O I：

10.1134/S0036024414030303

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：

TiO2 (P25)/graphene nanocomposite photocatalyst have been successfully synthesized with P25 and different ratios of graphene oxide through a green and facile one-step microwave-assisted method. Graphene oxide was restored to graphene sheets and P25 was coated on it simultaneously during the reaction. The method offers easy access to the semiconductor/graphene nanocomposites with a uniform coating and strong interactions between semiconductor and the underlying graphene sheets. The prepared P25/graphene nanocrystals hybrid has superior photocatalytic activity in the degradation of methylene blue, showing an impressive photocatalytic enhancement over P25. The improved photocatalytic activities may be attributed to increased adsorptivity of dyes, extended light absorption range, and efficient charge separation properties of a two-dimensional graphene network.

引用

页码：478 / 483

页数：6

共 25 条

[21] New Insight for Enhanced Photocatalytic Activity of TiO2 by Doping Carbon Nanotubes: A Case Study on Degradation of Benzene and Methyl Orange [J].

Xu, Yi-Jun ;

Zhuang, Yangbin ;

Fu, Xianzhi .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (06) :2669-2676

[22] Flexible graphene films via the filtration of water-soluble noncovalent functionalized graphene sheets [J].

Xu, Yuxi ;

Bai, Hua ;

Lu, Gewu ;

Li, Chun ;

Shi, Gaoquan .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (18) :5856-+

[23] Two-Dimensional Graphene Bridges Enhanced Photoinduced Charge Transport in Dye-Sensitized Solar Cells [J].

Yang, Nailiang ;

Zhai, Jin ;

Wang, Dan ;

Chen, Yongsheng ;

Jiang, Lei .

ACS NANO, 2010, 4 (02) :887-894

[24] Mixed oxides as gas sensors [J].

Zakrzewska, K .

THIN SOLID FILMS, 2001, 391 (02) :229-238

[25] P25-Graphene Composite as a High Performance Photocatalyst [J].

Zhang, Hao ;

Lv, Xiaojun ;

Li, Yueming ;

Wang, Ying ;

Li, Jinghong .

ACS NANO, 2010, 4 (01) :380-386

← 1 2 3 →