化工新型材料

化工新型材料 ›› 2020, Vol. 48 ›› Issue (7) : 206-209. DOI: 10.19817/j.cnki.issn 1006-3536.2020.07.047

科学研究

溴氧化铋/石墨氮化碳复合半导体制备及其可见光催化性能研究

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Preparation and photocatalytic activity of BiOBr/g-C₃N₄ heterojunction

Ding Tongyue¹, Chen Yihua¹, Hu Junjun¹, Yang Benhong²

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Received		Published
2019-08-30		2020-07-20
Issue Date	Revised Date
2022-11-01	2019-08-30

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摘要

采用水热合成法制备BiOBr/g-C₃N₄复合光催化剂,利用扫描电镜(SEM)、X射线衍射仪(XRD)和荧光光谱仪(PL)对其进行表征。结果表明:BiOBr呈近似方形片状颗粒,边长约600nm,厚度约40nm,并且均匀地分布在g-C₃N₄薄片上。在可见光下,BiOBr/g-C₃N₄复合催化剂催化降解罗丹明B(RhB),降解率最高达96%,经过4次重复使用,其降解率仍然可达90%以上。

Abstract

BiOBr/g-C₃N₄ composite photocatalysts were prepared by hydrothermal method and characterized by SEM,XRD and PL methods.It was found that the BiOBr particles were approximately square flake,with edge length 600nm and thickness 40nm,and evenly distributed on the g-C₃N₄ thin flakes.The photocatalytic degradation rate of rhodamine B catalyzed by BiOBr/g-C₃N₄ was 96% after 60min visible light irradiation,and the degradation rate still reached more than 90% after four times of repeated use of the same catalyst.

关键词

石墨氮化碳 / 溴氧化铋 / 异质结 / 催化降解

Key words

g-C₃N₄ / BiOBr / heterojunction / catalytic degradation

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溴氧化铋/石墨氮化碳复合半导体制备及其可见光催化性能研究[J]. 化工新型材料, 2020, 48(7): 206-209 DOI:10.19817/j.cnki.issn 1006-3536.2020.07.047

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