Preparation of WO3/g-C3N4 composites and their enhanced photodegradation of contaminants in aqueous solution under visible light irradiation

被引：43

作者：

Gondal, M. A. ^{[1
,2
]}

Adesida, A. A. ^{[1
,2
]}

Rashid, S. G. ^{[1
,2
]}

Shi, Shan ^{[3
]}

Khan, Rashid ^{[1
,2
]}

Yamani, Z. H. ^{[1
,2
]}

Shen, Kai ^{[3
]}

Xu, Qingyu ^{[4
]}

Seddigi, Zaki S. ^{[5
]}

Chang, Xiaofeng ^{[3
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Phys, Dhahran 31261, Saudi Arabia

[2] King Fahd Univ Petr & Minerals, Ctr Excellence Nanotechnol CENT, Dhahran 31261, Saudi Arabia

[3] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 211100, Jiangsu, Peoples R China

[4] Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China

[5] Umm Al Qura Univ, Dept Environm Hlth, Fac Publ Hlth & Hlth Informat, Mecca 21955, Saudi Arabia

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2015年 / 114卷 / 01期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

WO3; g-C3N4; Composite; Photocatalytic; Rhodamine B; Heterojunction; PHOTOCATALYTIC ACTIVITY; HYBRID PHOTOCATALYST; DEGRADATION; G-C3N4; SEMICONDUCTOR; DRIVEN; PERFORMANCE; WATER;

D O I：

10.1007/s11144-014-0787-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

A series of WO3/g-C3N4 composite photocatalysts with different mass ratios were prepared by a simple pyrolysis method, using tungstic acid and melamine as the starting materials. The microstructure and optical properties of as-synthesized WO3/g-C3N4 composite photocatalysts were investigated by X-ray diffraction, UV-Vis diffuse reflection spectroscopy and photoluminescence spectroscopy. Compared with WO3, g-C3N4 and well-known commercial photocatalysts, an improved visible-light-induced photodegradation of Rhodamine B and methyl tertiary butyl ether in aqueous solution was observed on WO3/g-C3N4 composite, due to the high carrier separation efficiency at the interface between WO3 and g-C3N4. Moreover, the photoactivity and photostability of catalyst after many runs was also evaluated.

引用

页码：357 / 367

页数：11

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