Synthesis of g-C3N4/Ag3PO4 heterojunction with enhanced photocatalytic performance

被引：71

作者：

He, Peizhi ^{[1
,2
]}

Song, Limin ^{[1
,2
]}

Zhang, Shujuan ^{[3
]}

Wu, Xiaoqing ^{[4
,5
]}

Wei, Qingwu ^{[1
,2
]}

机构：

[1] Tianjin Polytech Univ, Coll Environm & Chem Engn, Tianjin 300387, Peoples R China

[2] Tianjin Polytech Univ, State Key Lab Hollow Fiber Membrane Mat & Membran, Tianjin 300387, Peoples R China

[3] Tianjin Univ Sci & Technol, Coll Sci, Tianjin 300457, Peoples R China

[4] Tianjin Polytech Univ, Inst Composite Mat, Tianjin 300387, Peoples R China

[5] Tianjin Polytech Univ, Minist Educ, Key Lab Adv Text Composite Mat, Tianjin 300387, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2014年 / 51卷

关键词：

Inorganic compound; Chemical synthesis; Catalytic properties; VISIBLE-LIGHT IRRADIATION; CARBON NITRIDE SEMICONDUCTORS; FACILE SYNTHESIS; METAL-FREE; DEGRADATION; COMPOSITE; WATER;

D O I：

10.1016/j.materresbull.2013.12.064

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

g-C3N4/Ag3PO4 heterojunction photocatalyst with visible-light response was prepared by a facile coprecipitation method. The photocatalysts were characterized by X-ray powder diffraction, transmission electron microscopy, UV-vis absorption spectroscopy and Fourier transform infrared spectroscopy. The photocatalytic activities of the obtained samples were tested by using Rhodamine B (RhB) as the degradation target under visible light irradiation. g-C3N4/Ag3PO4 decomposed RhB, more effectively than the pure Ag3PO4 particles did, and 2 wt.% g-C3N4 had the highest activity. Furthermore, 2 wt.% g-C3N4/Ag3PO4 degraded high-concentration RhB more potently than unmodified Ag3PO4 did, probably because g-C3N4/Ag3PO4 heterojunction photocatalyst enhanced the photocatalytic activity by efficiently separating the photogenerated electron-hole pairs. (C) 2014 Published by Elsevier Ltd.

引用

页码：432 / 437

页数：6

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