BiOCl碱性条件下光催化氧化去除As(III)

摘要通过调控水热反应时间制备了一系列 BiOCl半导体光催化剂,通过 X射线衍射、透射电子显微镜、紫外-可见吸收光谱和 X射线光电子能谱等表征手段对催化剂的晶体结构、微观形貌、光谱学特性和化学组成性质等进行系统分析。实验所制备的 BiOCl材料在碱性条件下实现了对 As(III)较好的光催化转化性能,同时研究了 BiOCl-8在不同 pH值条件下对 As(III)去除性能。结果表明,在初始 pH=10时,0.5 g·L^-1的 BiOCl-8在光照 30 min内可以将溶液中 5 mg·L^-1的 As(III)完全去除。

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	王朝
	李艳芳
	次仁卓嘎
	谭欣
	于涛

关键词：氯氧化铋 As(III) 光催化

Abstract： A series of BiOCl semiconductor photocatalysts were prepared by adjusting the hydrothermal reaction time. The crystal structure, microstructure, spectral characteristics and chemical composition of the catalysts were systematically analyzed by means of X-ray diffraction, transmission electron microscopy, UV-visible absorption spectroscopy and X-ray photoelectron spectroscopy. The photocatalytic conversion of As(III) was achieved by BiOCl material prepared in the experiment under alkaline conditions. At the same time, the removal performance of As(III) by BiOCl-8 at different pH values was studied. The results show that 0.5 g·L^-1 BiOCl-8 can completely remove 5 mg·L^-1 As(III) from the solution within 30 min of illumination at initial pH=10.

Keywords： BiOCl； As(III)； photocatalytic

Received 2022-04-27;

Fund:地区科学基金项目(22066022)。

Corresponding Authors: 于涛,副教授,E-mail:yutao@tju.edu.cn。 Email: yutao@tju.edu.cn

About author: 王朝(1995-),男,硕士研究生,现从事 Bi系材料碱性条件下去除水中污染物方面的研究。

引用本文:

王朝, 李艳芳, 次仁卓嘎, 谭欣, 于涛.BiOCl碱性条件下光催化氧化去除As(III)[J]. 化学工业与工程, 2024,41(3): 68-76

WANG Chao, LI Yanfang, CIRENZHUOGA, TAN Xin, YU Tao.Removal of As(III) by photocatalytic oxidation under BiOCl alkaline condition[J]. Chemcial Industry and Engineering, 2024,41(3): 68-76

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