电纺BiOCl@UiO-66-NH<sub>2</sub>@TSPAN纳米纤维可见光催化还原Cr(Ⅵ)

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Abstract Herein, to improve the photocatalytic activity of UiO-66-NH₂, electrospun polyacrylonitrile nanofibers treated by thermal oxidative stabilization (TSPAN) were used as supports for in-situ loading of UiO-66-NH₂ and BiOCl crystals by solvothermal method, designing and constructing flexible BiOCl@UiO-66-NH₂@TSPAN composite nanofibers. The performance of the composite nanofibers for visible light-driven Cr(VI) photocatalytic reduction was investigated. The results showed that UiO-66-NH₂ and BiOCl could be uniformly loaded onto the surface of the TSPAN nanofibers. Due to the introduction of BiOCl, BiOCl/UiO-66-NH₂ heterojunction was formed, which improved the visible light response of the composite nanofibers, reduced the recombination rate of photo-generated electron-hole pairs, and then exhibited enhanced visible light-driven photocatalytic activity for the reduction of Cr(VI). The reduction rate reached 100% within 120minutes. After five cycles, the composite nanofibers maintained good stability and the photocatalytic reduction efficiency for Cr (VI) was still above 90%. In addition, they were flexible and could be quickly and conveniently separated from the reaction solution.

Key words： electrospinning photocatalysis Cr(VI) metal-organic frameworks BiOCl

Received: 23 July 2023

PACS:

X703.5

Corresponding Authors: 周美梅,讲师,mmzhou@chd.edu.cn E-mail: mmzhou@chd.edu.cn

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	ZHOU Mei-mei
	XIANG Wan-ting
	WANG Peng-bo
	ZHU Xue-mei
	ZOU Wei
	HE Jia-hui
	LUO Ping-ping

Cite this article:

ZHOU Mei-mei,XIANG Wan-ting,WANG Peng-bo等. Electrospun BiOCl@UiO-66-NH₂@TSPAN nanofibers for visible-light-driven Cr (VI) photocatalytic reduction[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(3): 1366-1375.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I3/1366

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