Fabrication of ZIF-8@TiO2 micron composite via hydrothermal method with enhanced absorption and photocatalytic activities in tetracycline degradation

By Rui Li, Wei Li, Chun Jin, Qinyu He, Yinzhen Wang. 2020

152 citations recorded by the source corpus.

Abstract ZIF-8@TiO2 micron composite, one kind of new high-efficiency photocatalyst was prepared by hydrothermal method in this work. We compared the ability of ZIF-8, TiO2 nanospheres and ZIF-8@TiO2 to catalytically degrade tetracycline. The results of the characterization show that the TiO2 nanospheres grow uniformly on the surface of ZIF-8, and ZIF-8 and TiO2 are linked together by chemical bonds. The synergistic effect of ZIF-8 and TiO2 greatly enhances the catalytic ability of the composite photocatalyst. In ZIF-8@TiO2 micron composite, ZIF-8 provides a new way for photogenerated electron transfer as a charge separator, to reduce the charge recombination rate. Since the hybrid combines the advantages of ZIF-8 and TiO2, ZIF-8@TiO2 exhibits excellent ability to catalytically degrade tetracycline. The possible photocatalytic mechanism of the hybrid photocatalyst was also discussed.

Subfields: Inorganic Chemistry, Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/c0e2f9c44b64675f385c05e51938829ef30f2ac0