g-C3N4/Ag3PO4 composites with synergistic effect for increased photocatalytic activity under the visible light irradiation

被引：56

作者：

Xu, Hui ^{[1
]}

Zhao, Haozhu ^{[1
]}

Song, Yanhua ^{[1
]}

Yan, Wei ^{[1
]}

Xu, Yuanguo ^{[1
]}

Li, Hongping ^{[1
]}

Huang, Liying ^{[1
]}

Yin, Sheng ^{[1
]}

Li, Yeping ^{[1
]}

Zhang, Qi ^{[2
]}

Li, Huaming ^{[1
]}

机构：

[1] Jiangsu Univ, Inst Energy Res, Sch Environm, Zhenjiang 212013, Peoples R China

[2] Hainan Univ, Hainan Prov Key Lab Fine Chem, Haikou 570228, Hainan, Peoples R China

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2015年 / 39卷

基金：

中国国家自然科学基金;

关键词：

g-C3N4/Ag3PO4; Photocatalytic; Degradation; AG/AGI/BIOI COMPOSITES; AG3PO4; NANOPARTICLES; CARBON NITRIDE; HETEROJUNCTION; G-C3N4; MICROSPHERES; DEGRADATION; SHELL; WATER; MOS2;

D O I：

10.1016/j.mssp.2015.04.013

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The g-C3N4 was synthesized by a hydrothermal method and the g-C3N4/Ag3PO4 composites were prepared by a ordinary precipitation method. Microstructures, morphologies and optical properties of the as-prepared samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), UV vis diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS). The results showed that the Ag3PO4 nanoparticles were dispersed on the surface of the flake-like g-C3N4, and the heterojunction was formed on the interface. The g-C3N4/Ag3PO4 (2 wt%) photocatalyst presented the highest photocatalytic activity for organic dye methylene blue (MB) degradation, and its photocurrent intensity was approximately 2 times than that of the pure Ag3PO4. The g-C3N4/Ag3PO4 (2 wt%) photocatalyst also exhibited photocatalytic performance in the decomposition of colorless antibiotic ciprofloxacin (CIP). The capture experiment confirmed that holes acted as the main active species during the photocatalytic reaction. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：726 / 734

页数：9

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