Construction of Heterostructured g-C3N4/Ag/TiO2 Microspheres with Enhanced Photocatalysis Performance under Visible-Light Irradiation

被引：789

作者：

Chen, Yanfeng ^{[1
]}

Huang, Weixin ^{[1
]}

He, Donglin ^{[1
]}

Yue Situ ^{[1
]}

Huang, Hong ^{[1
]}

机构：

[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 16期

关键词：

heterostructured; g-C3N4; Ag; TiO2; microspheres; photocatalysis; visible-light; COMPOSITE PHOTOCATALYST; TITANIUM-DIOXIDE; METHYL-ORANGE; TIO2; DEGRADATION; NANOPARTICLES; PHOTODEGRADATION; G-C3N4/TIO2; OXYGEN; FILMS;

D O I：

10.1021/am503674e

中图分类号：

TB3 [工程材料学];

学科分类号：

082905 [生物质能源与材料];

摘要：

The visible-light photocatalytic performance of the heterostructured g-C3N4/Ag/TiO2 microspheres was investigated. As an electron-conduction bridge, Ag nanopartides were photodeposited as the interlayer between g-C3N4 and the surface of TiO2 microspheres to increase visible-light absorption via the surface plasmon resonance. The interface between Ag/TiO, and g-C3N4 facilitates the direct migration of photoinduced electrons from g-C3N4 to Ag/TiO2, which is conductive to retarding the recombination of electron holes. The g-C3N4 (4%)/Ag/TiO2 microsphere sample shows significant photocatalytic activity, higher than the sum of g-C3N4 (1.2 mg) and Ag/TiO2 samples, or the sum of TiO2 and Ag/g-C3N4 (1.8 mg) samples. It indicates that the heterostructured combination of g-C3N4, Ag and TiO2 microspheres provides synergistic photocatalytic activity through an efficient electron transfer process.

引用

页码：14405 / 14414

页数：10

共 44 条

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