In order to improve the photocatalytic performance of pure carbon nitride and enhance its application in wastewater treatment antibiotics,CN/FeS2,CN/Fe2O3,and Fe2O3/FeS2 composites are successfully synthesized via hydrothermal one-step synthesis method.The results by XRD and FT-IR analysis show that the composites are successfully prepared,a Z-type heterojunction CN/FeS2 is suggested,and the electron transport mode between CN and FeS2 is described.ESR test show that superoxide free radicals represent the main active species in the catalytic process,and the efficiency of CN/FeS2 in degrading tetracycline is as high as 97％.After six degradation cycles,the efficiency declines by 11％.This study opens up a new way for photocatalytic synthesis,as well as the design and purification of pollutants.
维普
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