Ag3PO4 Deposited on CuBi2O4 to Construct Z-Scheme Photocatalyst with Excellent Visible-Light Catalytic Performance Toward the Degradation of Diclofenac Sodium

Xiaojuan Chen; Chunmu Yu; Runliang Zhu; Ning Li; Jieming Chen; Shuai Li; Wei Xia; Song Xu; Hailong Wang; Xin Chen

doi:10.3390/nano9070959

Nanomaterials (Jun 2019)

Ag3PO4 Deposited on CuBi2O4 to Construct Z-Scheme Photocatalyst with Excellent Visible-Light Catalytic Performance Toward the Degradation of Diclofenac Sodium

Xiaojuan Chen,
Chunmu Yu,
Runliang Zhu,
Ning Li,
Jieming Chen,
Shuai Li,
Wei Xia,
Song Xu,
Hailong Wang,
Xin Chen

Affiliations

Xiaojuan Chen: College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
Chunmu Yu: College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
Runliang Zhu: CAS Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Material, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
Ning Li: CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510650, China
Jieming Chen: College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
Shuai Li: College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
Wei Xia: College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
Song Xu: College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
Hailong Wang: College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
Xin Chen: College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China

DOI: https://doi.org/10.3390/nano9070959
Journal volume & issue: Vol. 9, no. 7
p. 959

Abstract

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CuBi2O4/Ag3PO4 was synthesized through a combination of hydrothermal synthesis and an in situ deposition method with sodium stearate as additives, and their textures were characterized with XRD, XPS, SEM/HRTEM, EDS, UV-Vis, and PL. Then, the photodegradation performance of CuBi2O4/Ag3PO4 toward the degradation of diclofenac sodium (DS) was investigated, and the results indicate that the degradation rate of DS in a CuBi2O4/Ag3PO4 (1:1) system is 0.0143 min−1, which is 3.6 times that in the blank irradiation system. Finally, the photocatalytic mechanism of CuBi2O4/Ag3PO4 was discussed, which follows the Z-Scheme theory, and the performance enhancement of CuBi2O4/Ag3PO4 was attributed to the improved separation efficiency of photogenerated electron−hole pairs.

Published in Nanomaterials

ISSN: 2079-4991 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: https://www.mdpi.com/journal/nanomaterials

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