UiO-66/BiVO<sub>4</sub>复合光催化剂的制备及其对四环素的光解

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Abstract The UiO-66/BiVO₄ composite photocatalytic material was successfully preparated by a two-step solvothermal method, and its photocatalytic degradation performance for tetracycline (TC) was investigated. Under simulated visible light, when the amount of substance about zirconium(Zr):bismuth(Bi) was 2:1, the photolysis effect of TC was the best (85.8%). Its total removal rate of TC was increased by 27.1% and 23.5% compared to pure UiO-66 and pure BiVO₄, respectively. The degradation rate was 47.9times that of pure BiVO₄. The structure, morphology and composition of the prepared nano-photocatalyst by X-ray diffractometer (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible diffuse reflection (UV-vis DRS) and photoelectric performance characterization analysis. The results showed that UiO-66 and BiVO₄ were tightly combined to form Ⅱ heterojunction. The improvement of composite material performance was attributed to improvements in various aspects, including specific surface area, photogenerated carrier separation rate, and pore structure.

Key words： UiO-66/BiVO₄ heterojunction photocatalysis Tetracycline degradation

Received: 27 July 2020

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X703

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	QI Yu-wen
	WEI Li-hong
	SHI Dong-ni
	JIANG Jin-yuan
	YAN Zheng

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QI Yu-wen,WEI Li-hong,SHI Dong-ni等. Preparation of UiO-66/BiVO₄ composite photocatalyst and its photodegradation of tetracycline[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(3): 1162-1171.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I3/1162

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