TIAN Yan, TAN Yu, ZHANG Zehua, et al. Performance Analysis of Highly EfficientPhotocatalytic Activity of gC3N4/ZnxCd1-xS Com Posites[J]. 2020, 25(4): 134-140.
TIAN Yan, TAN Yu, ZHANG Zehua, et al. Performance Analysis of Highly EfficientPhotocatalytic Activity of gC3N4/ZnxCd1-xS Com Posites[J]. 2020, 25(4): 134-140.DOI: 10.15938/j.jhust.2020.04.019.
and gC3N4/ZnxCd1-xS heterojunction photocatalyst was prepared bycoprecipitationhydrothermal method The structure and photochemical propertiesof the photocatalyst were characterized by XRD
SEM
TEM
EDS and UVVis DRSPhotocatalytic activity of gC3N4/ZnxCd1-xS was evaluated by degradation ofmethylene blue (MB) under visible light irradiation The mechanism ofphotocatalytic degradation was studied by capture agent test The results showthat gC3N4 and ZnxCd1-xS form a wellcrystallized heterojunction structure
andas the value of x increases
the light absorption range of the heterojunctiongradually decreases Among them
gC3N4/Zn05Cd05S have the best photocatalyticperformance After 210 minutes of visible light irradiation
the degradationrate to MB reached 99% After 4 reproducibility tests
there was no significantdecrease in photocatalytic activity Through the capture agent experiments
themain active substances involved in degradation are h+ and O-2·