Open Access

ARTICLE

Synthesis of a Novel TiO₂@Ag₃PO₄ Core-Shell Structure with Enhanced Photocatalytic Performance

Chao Wei^1,2, Zhongjin Peng², Yunfei Chen³, Yanhai Cheng^1,*
1 School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, 221116, China
2 College of Xuhai, China University of Mining and Technology, Xuzhou, 221008, China
3 Shenyang University of Chemical Technology, Shenyang Economic and Technological Development Zone, Shenyang, 110142, China
* Corresponding Author: Yanhai Cheng. Email:
(This article belongs to this Special Issue: Advanced Materials, Processing and Testing Technology)

Fluid Dynamics & Materials Processing 2022, 18(4), 973-984. https://doi.org/10.32604/fdmp.2022.019772

Received 14 October 2021; Accepted 18 December 2021; Issue published 06 April 2022

Abstract

Ag₃PO₄ exhibits a high photocatalytic activity if exposed to visible light, however, it displays bottlenecks such as poor cycle-stability and mediocre ability to degrade methyl orange (MO) because of limited adsorption of MO molecules onto its surface. In this study, nano TiO₂ prepared by a one-step method was combined with Ag₃PO₄ to form a TiO₂@Ag₃PO₄ heterojunction in order to improve this material both in terms of photocatalysis and photostability. After adding a KH-570 silane coupling agent, the photocatalytic performance of TiO₂@Ag₃PO₄ could be improved even further, with the degradation rate of MO maintained at more than 90% after three cycles of visible in light.

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Keywords

TiO₂@Ag₃PO₄; heterojunction; photocatalytic performance; methyl orange; silane coupling agent

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