摘要
CeO_(2)/g-C_(3)N_(4)heterojunction photocatalyst had been successfully fabricated through a one-step in-situ pyrolysis formation of 3D hollow CeO_(2)mesoporous nanospheres and 2D g-C_(3)N_(4)nanosheets together with simultaneous removal of carbon sphere templates after heat treatment.The sample shows high catalytic performances for photocatalytic hydrogen generation and photocatalytic oxidation of Bisphenol A(BPA)under visible light irradiation,and the catalytic degradation route of BPA was suggested by the degradation products determined by GC-MS.The enhancing catalytic activity was attributed to the effective interfacial charge migration and separation.Finally,it was proposed that the CeO_(2)/g-C_(3)N_(4)heterojunction photocatalyst could follow a more appropriate Z-scheme charge transfer mechanism,which was confirmed by the analysis of experiment and theoretical calculation results.
基金
the National Natural Science Foundation of China(51808250,41603097,51676082,41931292)
the Natural Science Foundation of Jiangsu Province of China(BK20181070)
Science and Technology Research Programs of Guangdong Province(No.2019A1515011015)
Science and Technology Program of Guangzhou(201904010353)
Fundamental Research Funds for the Central Universities(19lgpy157)
Jiangsu Key Research and Developmen Projects(<gn6>BE2020772</gn6)
the Hong Kong Scholars Program 2017。
