Enhanced Visible Light Photocatalytic Degradation of Rhodamine B by Bi2WO6-Reduced Graphene Oxide Composites Prepared via Microwave-Assisted Method

被引：1

作者：

Yu, Kai ^{[2
]}

Liu, Xinjuan ^{[1
,3
]}

Li, Jinliang ^{[2
]}

Chen, Taiqiang ^{[2
]}

Sun, Zhuo ^{[2
]}

Sun, Chang Q. ^{[1
]}

机构：

[1] China Jiliang Univ, Coll Mat Sci & Engn, Ctr Coordinat Bond & Elect Engn, Hangzhou 310018, Peoples R China

[2] E China Normal Univ, Dept Phys, Engn Res Ctr Nanophoton & Adv Instrument, Minist Educ, Shanghai 200062, Peoples R China

[3] Shanghai Nanotechnl Promot Ctr, Shanghai 200237, Peoples R China

来源：

NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2014年 / 6卷 / 08期

基金：

中国博士后科学基金;

关键词：

Microwave-Assisted Method; Bi2WO6; Reduced Graphene Oxide; Photocatalysis; Rhodamine B; SENSITIZED SOLAR-CELLS; SELECTIVE OXIDATION; CARBON NANOTUBE; ANATASE TIO2; BI2WO6; PERFORMANCE; NANOCOMPOSITES; SEMICONDUCTOR; FABRICATION; REDUCTION;

D O I：

10.1166/nnl.2014.1816

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Bi2WO6-reduced graphene oxide (RGO) composites were successfully synthesized via microwave-assisted reduction of graphite oxide in Bi2WO6 precursor solution using a microwave system. Their morphologies, structures, and photocatalytic performance in the degradation of Rhodamine B (RhB) were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, UV-vis absorption spectroscopy, and electrochemical impedance spectroscopy, respectively. The results show that the RGO addition can enhance the photocatalytic performance of Bi2WO6. Bi2WO6-RGO composite with 0.8 wt% RGO achieves a maximum RhB degradation rate at 240 min under visible light irradiation, much higher than that for Bi2WO6 (72%). The enhanced photocatalytic performance is ascribed to the increased light absorption and the reduction in electron-hole pair recombination in Bi2WO6 with the introduction of RGO.

引用

页码：666 / 671

页数：6

共 51 条

[1] Biomolecule-assisted fabrication of copper doped SnS2 nanosheet-reduced graphene oxide junctions with enhanced visible-light photocatalytic activity [J].