Applied Catalysis2022，Vol.30314.DOI:10.1016/j.apcatb.2021.120902

Facile synthesis and application of CdS/Bi20TiO32/Bi4Ti3O12 ternary heterostructure: A synergistic multi-heterojunction photocatalyst for enhanced endosulfan degradation and hydrogen evolution reaction

Das, Krishnendu Bariki, Ranjit Majhi, Dibyananda Mishra, Abtar Das, Kundan K. Dhiman, Rohan Mishra, B. G.
Applied Catalysis2022，Vol.30314.DOI:10.1016/j.apcatb.2021.120902
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  • NSTL
  • Elsevier

Facile synthesis and application of CdS/Bi20TiO32/Bi4Ti3O12 ternary heterostructure: A synergistic multi-heterojunction photocatalyst for enhanced endosulfan degradation and hydrogen evolution reaction

Das, Krishnendu 1Bariki, Ranjit 1Majhi, Dibyananda 1Mishra, Abtar 1Das, Kundan K. 2Dhiman, Rohan 1Mishra, B. G.1
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作者信息

  • 1. Natl Inst Technol
  • 2. Siksha O Anusandhan Deemed Univ
  • 折叠

Abstract

Facile fabrication of visible light responsive multicomponent heterostructure photocatalysts with synergistic photoelectron migration is an effective approach with potential application in water remediation and renewable energy generation. In this study, a series of ternary multi-heterojunction CdS/Bi20TiO32/Bi4Ti3O12 (CdSxBTC) photocatalysts were prepared by hydrothermal deposition of CdS nanoparticles (15-25 nm) over one pot combustion synthesized Bi20TiO32/Bi4Ti3O12 (BTC) nanostructures. Comprehensive characterization of the ternary composites revealed enhanced optical absorption, high interfacial contact, fast electron channelization and a prolonged excited state life time. The CdSxBTC composite materials displayed enhanced photocatalytic activity for endosulfan degradation (k(app) value 6-12 times greater than pure semiconductors) and water splitting reaction (H-2 production rate 1890 mu molgb(-1) h(-1) and apparent conversion efficiency 19%). The cell viability -study disclosed non-cytotoxic nature of the treated endosulfan solution. A synergistic Type-I bridged coupled Z-scheme electron migration process accounted for robust radical generation ability (O-center dot(2)- and (OH)-O-center dot) and photocatalytic activity of the ternary composites.

Key words

Multi-heterojunctions/Bismuth titanate/CdS/Endosulfan/MTT assay/Hydrogen evolution/Z-SCHEME PHOTOCATALYST/VISIBLE-LIGHT/HYDROTHERMAL SYNTHESIS/ELECTRON MEDIATOR/REMOVAL/OXYGEN/WATER/CDS/PHOTOLUMINESCENCE/BIODEGRADATION

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量56
参考文献量68
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