Visible Photocatalytic Activity Enhancement of ZnWO4 by Graphene Hybridization

被引：255

作者：

Bai, Xiaojuan ^{[1
]}

Wang, Li ^{[1
]}

Zhu, Yongfa ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem, Beijing 10084, Peoples R China

来源：

ACS CATALYSIS | 2012年 / 2卷 / 12期

基金：

国家高技术研究发展计划(863计划); 美国国家科学基金会;

关键词：

photocatalysis; ZnWO4; graphene; hybridization; TIO2-GRAPHENE NANOCOMPOSITES; ORGANIC CONTAMINANTS; CHARGE-TRANSFER; LIGHT; DEGRADATION; OXIDE; TIO2; ZNO; REDUCTION; COMPOSITE;

D O I：

10.1021/cs3005852

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：

ZnWO4/graphene hybride (GZW-X) photocatalysts were synthesized via a facile in situ reduction of graphene oxide and ZnWO4 in water. High efficiency for the degradation of methylene blue (MB) under both UV light and visible light was obtained for the GZW-X photocatalysts. The photocatalytic efficiency of ZnWO4/graphene-0.2 wt % under visible-light and UV-light irradiation was similar to 7.1 and 2.3 times that of pristine ZnWO4, respectively. The visible photocatalytic activity originated from the (OH)-O-center dot and O-2(center dot-), which were formed by. photosensitization of graphene in ZnWO4/graphene. The enhancement of UV photocatalytic light activity in ZnWO4/graphene was attributed to the high separation efficiency of photoinduced electron-hole pairs resulting from the promotion of HOMO orbit of graphene in ZnWO4/graphene.

引用

页码：2769 / 2778

页数：10

共 50 条

[31] Enhanced photocatalytic behavior of ZnO nanorods decorated with a Au, ZnWO4, and Au/ZnWO4 composite: Synthesis and characterization
Somdee, Assanee
Wannapop, Surangkana
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS, 2022, 47
[32] Template-free hydrothermal synthesis and high photocatalytic activity of ZnWO4 nanorods
Gao, Bin
Fan, Huiqing
Zhang, Xiaojun
Song, Lixun
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2012, 177 (13): : 1126 - 1132
[33] ZnWO4/BiOI heterostructures with highly efficient visible light photocatalytic activity: the case of interface lattice and energy level match
Li, Pan
Zhao, Xian
Jia, Chun-Jiang
Sun, Honggang
Sun, Liming
Cheng, Xiufeng
Liu, Li
Fan, Weiliu
JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (10) : 3421 - 3429
[34] Experimental and Theoretical Studies on the Enhanced Photocatalytic Activity of ZnWO4 Nanorods by Fluorine Doping
Chen, Shaohua
Sun, Sixiu
Sun, Honggang
Fan, Weiliu
Zhao, Xian
Sun, Xun
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (17): : 7680 - 7688
[35] Facile photochemical synthesis of ZnWO4/Ag yolk-shell microspheres with enhanced visible-light photocatalytic activity
Zhu, Jinli
Liu, Mengjie
Tang, Yanfeng
Sun, Tongming
Ding, Jinjin
Han, Liwei
Wang, Miao
MATERIALS LETTERS, 2017, 190 : 60 - 63
[36] Microwave engineering of ZnWO4 nanostructures: Towards morphologically favorable structures for photocatalytic activity
Amouzegar, Z.
Naghizadeh, R.
Rezaie, H. R.
Ghahari, M.
Aminzare, M.
CERAMICS INTERNATIONAL, 2015, 41 (07) : 8352 - 8359
[37] A Novel ZnS/ZnWO4 Nanocomposite with Enhanced Photocatalytic Properties
Cui, Xia
Huang, Wan Zhen
Zhou, Huan
Yin, Hao Yong
Zheng, Yi Fan
Song, Xu Chun
CURRENT NANOSCIENCE, 2015, 11 (03) : 360 - 365
[38] ZnWO4 nanocrystals: synthesis, morphology, photoluminescence and photocatalytic properties
Pereira, P. F. S.
Gouveia, A. F.
Assis, M.
de Oliveira, R. C.
Pinatti, I. M.
Penha, M.
Goncalves, R. F.
Gracia, L.
Andres, J.
Longo, E.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2018, 20 (03) : 1923 - 1937
[39] Microwave hydrothermal synthesis and photocatalytic properties of ZnWO4 nanorods
Tan, Guoqiang
Zhang, Lili
Wei, Shasha
Xia, Ao
Ren, Huijun
CRYSTAL RESEARCH AND TECHNOLOGY, 2012, 47 (12) : 1279 - 1283
[40] Controlled synthesis of the ZnWO4 nanostructure and effects on the photocatalytic performance
Jie Lin
Jun Lin
Yongfa Zhu
INORGANIC CHEMISTRY, 2007, 46 (20) : 8372 - 8378

← 1 2 3 4 5 →