Preparation and Photocatalytic Degradation for Tetracycline of ZnO* from Zn-MOF by Visible Light
A Zn-based metal-organic framework material(Zn-MOF)was synthesized by solvothermal method using 1,3,5-tri(3-carboxyl-triazole-methylene)-2,4,6-tri toluene(H3L)as ligand,and ZnO*(*represents ZnO containing oxygen vacancies)was prepared by high-temperature calcination.The structure,morphology,particle size,oxygen vacancy and band gap width(Eg)of Zn-MOF and ZnO* were characterized by X-ray powder diffraction(XRD),scanning electron microscopy(SEM),electron paramagnetic resonance spectroscopy(EPR)and UV-vis diffuse reflection spectroscopy,respectively.Further,tetracycline(TC)was selected as the target pollutant,and photocatalytic degradation experiments were carried out using Zn-MOF and ZnO* as catalysts.Driven by visible light,the photocatalytic degradation for TC by ZnO* is much better than that by Zn-MOF.
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