Boosting visible-light-driven photocatalytic activity of BiPO4 via constructing Schottky junction with Ti3C2 MXene

Like Zhang; Jun Yang; Taiping Xie; Shan Feng; Longjun Xu

Materials & Design (Jul 2020)

Boosting visible-light-driven photocatalytic activity of BiPO4 via constructing Schottky junction with Ti3C2 MXene

Like Zhang,
Jun Yang,
Taiping Xie,
Shan Feng,
Longjun Xu

Affiliations

Like Zhang: College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, China; Correspondence to: L. Zhang, College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, China.
Jun Yang: Chongqing Key Laboratory of Environmental Materials and Remediation Technologies, College of Chemical and Environmental Engineering, Chongqing University of Arts and Sciences, Yongchuan 402160, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
Taiping Xie: School of Materials Science and Engineering, Yangtze Normal University, Chongqing 408100, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Correspondence to: T. Xie, School of Materials Science and Engineering, Yangtze Normal University, Chongqing 408100, China.
Shan Feng: School of Mining and Civil Engineering, Liupanshui Normal University, Liupanshui 553004, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
Longjun Xu: State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China

Journal volume & issue: Vol. 192
p. 108772

Abstract

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The low separation efficiency of photoinduced carriers in BiPO4 system limited its photocatalytic application. Here, lotus flower-like heterostructure Ti3C2/BiPO4 was constructed via a simple hydrothermal synthesis without surface active agent. The Schottky barrier between BiPiO4 and Ti3C2 interface could be formed due to the large gap in work function for two components, which efficiently promoted the photoproduced holes extraction, the separation of photogenerated electron-hole pairs and further inhibited photo-corrosion for BiPO4 and strengthened photostability. The heterostructure could totally photodegrade RhB under visible light irradiation for 20 min. The enhanced photocatalytic mechanism was explained in detail in this work. It is hoped that this photocatalytic system will be applied into another wastewater treatment and the used preparation method will be widely applied into many composite materials.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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