现代化工

现代化工 ›› 2022, Vol. 42 ›› Issue (7) : 103-109. DOI: 10.16606/j.cnki.issn0253-4320.2022.07.021

科研与开发

形貌可控的C掺杂BiOBr高效光催化剂的制备及其对抗生素废水降解的性能研究

刘福跃, 田浩然, 刘崎峰, 刘章沛, 韩博宇, 邰月辉

作者信息 +

Preparation of a morphologically controllable C-doped BiOBr photocatalyst and study on its performance for degradation of antibiotic wastewater

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Received		Published
2021-07-10		2022-07-20
Issue Date	Revised Date
2022-07-12	2021-07-10

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摘要

以Bi (NO₃)₃·5H₂O为Bi源、十六烷基三甲基溴化铵(CTAB)为Br源和表面活性剂、无水乙酸为溶剂和螯合剂,采用溶剂热的方法成功制备了形貌可控的C掺杂BiOBr (C-BiOBr)。利用XRD、SEM、TEM、BET、XPS、PL和UV-Vis等对其进行表征,并以环丙沙星(CIP)作为模拟污染物评价催化剂的性能。结果表明,所制备的样品禁带宽度均比纯BiOBr (2.7 eV)明显缩减,光催化性能较好,重复利用性更强。

Abstract

Using Bi(NO₃)₃·5H₂O as Bi source,cetyltrimethyl ammonium bromide (CTAB) as Br source and surfactant,anhydrous acetic acid as solvent and chelating agent,the morphology-controllable carbon-doped BiOBR (C-BiOBR) is successfully prepared via a solvothermal method.The samples are characterized by XRD,SEM,TEM,BET,XPS,PL and UV-Vis,and their performances are evaluated with ciprofloxacin (CIP) as a simulated pollutant.It is shown that the band gap of the prepared samples is significantly narrow than that of pure BiOBr (2.7 eV),the photocatalytic performance is better,and the reusability is stronger.