Preparation and photocatalytic properties of 3D recyclable Bi<sub>2</sub>WO<sub>6</sub>/graphene aerogels

化学工业与工程

Chemcial Industry and Engineering

2024, Vol. 41

Issue (1) :21-27 DOI: 10.13353/j.issn.1004.9533.20220810

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Preparation and photocatalytic properties of 3D recyclable Bi₂WO₆/graphene aerogels

LEI Chao, CHANG Wei, ZHOU Yingying, LUO Jie, LI Yunfeng, LIU Bin

School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, China

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Abstract In order to improve the photocatalytic activity and recyclability of Bi₂WO₆, the Bi₂WO₆/graphene aerogel (BGA) with 3D structure were prepared by hydrothermal self-assembly method. The prepared samples were characterized by XRD, SEM, FT-IR, UV-Vis DRS, BET, etc. The photocatalytic performance of the prepared samples was evaluated using rhodamine B (RhB) as the target pollutant and 500 W xenon lamp as the light source. When the mass ratio of Bi₂WO₆ to GA was 6∶1, the degradation rate of rhodamine B by photocatalytic degradation could reach 99.7% within 120 min. After 5 cycles of use, the Bi₂WO₆/graphene aerogel composite still maintains good stability. The degradation rate of tetracycline hydrochloride was 98.6%. Free radical trapping experiments confirm that h⁺ is the main active species during the photocatalytic process. In addition, the BGA has certain deformable and compressive ability, which improves the recycling and reusability of the material.

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	LEI Chao
	CHANG Wei
	ZHOU Yingying
	LUO Jie
	LI Yunfeng
	LIU Bin

Keywords： graphene oxide aerogel bismuth tungstate photocatalysis dye

Received 2022-09-03;

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LEI Chao, CHANG Wei, ZHOU Yingying, LUO Jie, LI Yunfeng, LIU Bin.Preparation and photocatalytic properties of 3D recyclable Bi₂WO₆/graphene aerogels[J] Chemcial Industry and Engineering, 2024,V41(1): 21-27

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