A novel BiOI nanosheets modified TiO2/chitosan photocatalytic membrane for enhanced-performance removal of tetracycline

IF 3.2 3区 化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Journal of Solid State Chemistry Pub Date : 2024-08-19 DOI:10.1016/j.jssc.2024.124971
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Abstract

BiOI/TiO2/CS composite membrane materials were prepared by a simple room-temperature stirring-casting method. The BiOI/TiO2 grafted chitosan (CS) membranes exhibited enhanced visible light absorption, and their charge separation and interfacial transport were significantly improved. CS as the membrane substrate supported BiOI/TiO2/CS facilitates the recycling of the materials. The BiOI/TiO2/CS composites demonstrated enhanced photocatalytic performance for the degradation of tetracycline (TC) under UV–vis light. The composite BiOI/TiO2/CS-2 (BTC-2) was the best photocatalytic performance, completely degrading 10 ppm of tetracycline within 120 min and have good reusability. Besides, the mechanism of the enhanced photocatalytic activity of BiOI/TiO2/CS was explored.

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新型 BiOI 纳米片改性 TiO2/ 壳聚糖光催化膜用于提高四环素的去除性能
采用简单的室温搅拌铸造法制备了 BiOI/TiO2/CS 复合膜材料。BiOI/TiO2接枝壳聚糖(CS)膜对可见光的吸收能力增强,电荷分离和界面传输性能显著提高。CS 作为支持 BiOI/TiO2/CS 的膜基底有利于材料的回收利用。在紫外可见光下,BiOI/TiO2/CS 复合材料在降解四环素(TC)方面表现出更强的光催化性能。其中,BiOI/TiO2/CS-2(BTC-2)复合材料的光催化性能最佳,可在 120 分钟内完全降解 10 ppm 的四环素,并具有良好的重复使用性。此外,还探讨了 BiOI/TiO2/CS 光催化活性增强的机理。
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来源期刊
Journal of Solid State Chemistry
Journal of Solid State Chemistry 化学-无机化学与核化学
CiteScore
6.00
自引率
9.10%
发文量
848
审稿时长
25 days
期刊介绍: Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.
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