摘要
Optimizing photocatalytic CO_(2)reduction with simultaneous pollutant degradation is highly desired.However,the photocatalytic efficiency is restricted by the unmatched redox ability,high carriers’recombination rate,and lack of reactive sites of the present photocatalysts.Herein,the CuInZnS-Ti_(3)C_(2)T_(x)hybrid with matched redox ability and suitable CO_(2)adsorption property was rationally synthesized.The nucleation and growth process of CuInZnS was interfered by the addition of Ti_(3)C_(2)T_(x)with a negative charge,resulting in thinner nanosheets and richer reactive sites.Besides,the Schottky heterojunction built in the hybrid simultaneously improved the photoexcited charge transfer property,sunlight absorption range,and CO_(2)adsorption ability.Consequently,upon exposure to sunlight,CuInZnS-Ti_(3)C_(2)T_(x)exhibited an efficient photocatalytic CO_(2)reduction performance(10.2μmol·h^(−1)·g^(−1))with synergetic tetracycline degradation,obviously higher than that of pure CuInZnS.Based on the combination of theoretical calculation and experimental characterization,the photocatalytic mechanism was investigated comprehensively.This work offers a reference for the remission of worldwide energy shortage and environmental pollution problems.
基金
the National Natural Science Foundation of China(Nos.21801092,U1804138,and 22006057)
the Program for the Development of Science and Technology of Jilin Province(Nos.20210101409JC and 20200801040GH)
the Program for Science&Technology Innovative Research Team at University of Henan Province(No.20IRTSTHN007)
the Science&Technology Innovation Talents in Universities of Henan Province(No.22HASTIT028)
the Science and Technology Research Project of Henan Province(Nos.202102210055,212102210128,and 202102310615)
Henan Postdoctoral Foundation(No.202003013)
the General project of Chinese postdoctoral program(No.2020M672263).
