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.
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