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Inorganic and Nano-Metal Chemistry Volume 52, 2022 - Issue 4
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Articles

Bridging role of Ag0 particles formed in-situ on Ag3PO4/BiPO4 composites for enhanced solar-driven photocatalytic performance

Jiufu Chena Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, P R ChinaView further author information
,
Junbo Zhonga Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, P R ChinaCorrespondence[email protected]
View further author information
,
Shengtian Huanga Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, P R ChinaCorrespondence[email protected]
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,
Jianzhang Lia Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, P R ChinaView further author information
&
Ran Duanb Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, P R ChinaView further author information
Pages 563-569 | Received 11 Dec 2017, Accepted 01 Dec 2020, Published online: 17 Mar 2021
 
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Abstract

Ag3PO4/BiPO4 composite photocatalysts were constructed by a precipitation method. The composites were studied by Brunauer -Emmett-Teller (BET), X-ray diffraction patterns (XRD), UV-Vis diffuse reflectance spectra (DRS), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), surface photovoltage spectroscopy (SPS), electron spin-resonance (ESR) spectroscopy and X-ray photoelectron spectroscopy (XPS). Ag0 plays an important role in forming •O2− and accelerating the separation of the photo-induced charge pairs, consequently the Ag3PO4/BiPO4 composites display high photocatalytic activity than the pure BiPO4 under simulated sunlight irradiation. The separation and transfer of the photo-induced charge pairs abide by a Z-scheme mechanism.

Additional information

Funding

This project was supported financially by the program of Science and Technology Department of Sichuan province (No.2015JY0081).

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