Visible light driven photoderadation of KSb5S8 with layered crystal structure for MO

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  • 1. College of Biological and Chemical Engineering,Chongqing Second Normal University,Chongqing 400067;
    2. Henan Academy of Agricultural Sciences,Zhengzhou 450002;
    3. College of Chemistry and Chemical Engineering,Chongqing University of Technology,Chongqing 400054;
    4. Analytical and Testing Center of Chongqing University,Chongqing 401331

Received date: 2019-08-15

  Revised date: 2020-09-28

  Online published: 2021-01-21

Abstract

The synthesis of KSb5S8 via a self-flux method and its photodegradation of methyl orange (MO) solution under visible light irradiation were reported.The crystal structure of KSb5S8 was characterized by powder-X ray diffraction.In contrast to the state-of-art layered g-C3N4,KSb5S8 had preferable photocatalytic performance over MO solution,and the photodegradation ratio could be reached to 99% within 20min at pH=2,the corresponded photodegradation dynamic reaction could be evaluated by the pseudo-first-order model.Trapping experiments revealed that hole (h+) acted as an critical role in the photocatalytic reaction.Further,cycling running experiments indicated that KSb5S8 embraced relatively high photocatalytic stable performance.A substantial guidance was offered to design,and discovered novel efficient sulfide photocatalyst with layered crystal structure.

Cite this article

Li Yuanyuan, Wu Meijun, Chen Baoyu, Long Xiao, Zhang Bin, Zhang Junfeng, Yang Dingfeng . Visible light driven photoderadation of KSb5S8 with layered crystal structure for MO[J]. New Chemical Materials, 2020 , 48(12) : 231 -235 . DOI: 10.19817/j.cnki.issn 1006-3536.2020.12.054

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