ZIF-8@TiO<sub>2</sub>复合材料的制备及光催化性能

doi:10.11896/cldb.23030150

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Abstract In this work, a novel and efficient photocatalytic micron composite ZIF-8@TiO₂ was prepared by hydrothermal method. We compared the ability of ZIF-8, TiO₂ nanospheres and ZIF-8@TiO₂ to photocatalytically degrade rhodamine B (RhB). The composite catalyst were investigated by scanning electron microscopy(SEM), X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS), UV-vis diffuse reflectance spectroscopy(DRS), specific copy Fourier transform infrared spectrometer(FTIR), and surface area measuring instrument(BET). The results of the characterization show that the TiO₂ nanospheres grow uniformly on the surface of ZIF-8, and ZIF-8 as well as TiO₂ are connected together by chemical bonds. The synergistic effect of ZIF-8 and TiO₂ greatly enhances the catalytic ability of the composite photocatalyst. Among them, ZIF-8 in the ZIF-8@TiO₂ composite provides a new way for photogenerated electron transfer in charge separators to reduce the charge recombination rate. Since the hybrid combines the advantages of ZIF-8 and TiO₂, ZIF-8@TiO₂ shows excellent photocatalytic degradation of rhodamine B. Finally, the possible photocatalytic mechanism of the hybrid photocatalyst was also discussed.

Key words： hydrothermal method ZIF-8@TiO₂ photocatalysis rhodamine B

Published: 25 August 2024 Online: 2024-09-10

CLC number:

O643

Fund:National Natural Science Foundation of China(31660482,51162022).

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	Articles by authors
	TU Shenghui
	ZHONG Rongfu
	ZHANG Chao
	LIU Anru
	WU Wenbin
	DU Jun

Cite this article:

TU Shenghui,ZHONG Rongfu,ZHANG Chao, et al. Preparation and Photocatalytic Properties of ZIF-8@TiO₂ Composite Photocatalysts[J]. Materials Reports, 2024, 38(16): 23030150-6.

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http://www.mater-rep.com/EN/10.11896/cldb.23030150 OR http://www.mater-rep.com/EN/Y2024/V38/I16/23030150

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