Preparation of PCN/BiOCl composites and photocatalytic degradation of tetracycline hydrochloride

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces Pub Date : 2025-05-06 DOI:10.1016/j.surfin.2025.106641

Zhixin Ren , Hongyue Chen , Qing Xu , Yiying Zhang , Yuguang Lv , Shuang Liu , Haiyang Liu

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Abstract

PCN/BiOCl composites were prepared and identified by means of XRD, SEM, EDS, TEM, XPS, DRS, BET, PL, I-T, EIS, and M-S. The results show that PCNB has the best photocatalytic effect. The composites were used for the photocatalytic degradation of tetracycline hydrochloride (TC). TC photocatalytic degradation was accomplished by applying this material. Among them, PCNB50 had the best photocatalytic effect at 120 min of light exposure, and the degradation rate could reach 95.4%. The kinetics were analyzed and conformed to the first-order kinetic equations. The k value was 0.0212, which was three times that of PCN and four times that of CN. In this paper, the response surface was introduced to investigate the effects of pH, feeding amount, actual water samples, common anions, and cations in water on PCNB. Seven experiments were conducted on the catalyst to explore its cycling stability. This paper also calculated the valence band, conduction band, and flat band potential values of each material, and proposed the possible Z-type photocatalytic mechanism. The synthesized catalyst was also used for the photocatalytic levofloxacin (LVF) degradation, and the effect was good. This work will provide information visible light degradation and further removal of tetracycline hydrochloride, levofloxacin for future studies.

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PCN/BiOCl复合材料的制备及光催化降解盐酸四环素

制备了PCN/BiOCl复合材料，并通过XRD、SEM、EDS、TEM、XPS、DRS、BET、PL、I-T、EIS、M-S等手段对其进行了表征。结果表明，PCNB具有最佳的光催化效果。该复合材料用于光催化降解盐酸四环素（TC）。应用该材料实现了TC光催化降解。其中，PCNB50在光照120 min时光催化效果最好，降解率可达95.4%。对反应动力学进行了分析，发现反应符合一级动力学方程。k值为0.0212，是PCN的3倍，CN的4倍。本文引入响应面，考察pH、投料量、实际水样、水中常见阴离子和阳离子对PCNB的影响。对该催化剂进行了7次循环稳定性实验。本文还计算了每种材料的价带、导带和平带电位值，提出了可能的z型光催化机理。并将合成的催化剂用于光催化左氧氟沙星（LVF）降解，效果良好。这项工作将为进一步研究盐酸四环素、左氧氟沙星的可见光降解和进一步去除提供信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surfaces and Interfaces Chemistry-General Chemistry

CiteScore

8.50

自引率

6.50%

发文量

753

审稿时长

35 days

期刊介绍： The aim of the journal is to provide a respectful outlet for ''sound science'' papers in all research areas on surfaces and interfaces. We define sound science papers as papers that describe new and well-executed research, but that do not necessarily provide brand new insights or are merely a description of research results. Surfaces and Interfaces publishes research papers in all fields of surface science which may not always find the right home on first submission to our Elsevier sister journals (Applied Surface, Surface and Coatings Technology, Thin Solid Films)