化工新型材料

化工新型材料 ›› 2023, Vol. 51 ›› Issue (9) : 209-212. DOI: 10.19817/j.cnki.issn1006-3536.2023.09.038

科学研究

TiO₂/Cu复合材料的光催化降解和抗菌性能研究及机理分析

作者信息 +

Studies on the photocatalytic degradation and antimicrobial properties of TiO₂/Cu composite as well as the mechanism

Liu Zhun, Xu Qijie, Zhang Lili, Wang Kangkang

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文章历史 +

Received		Published
2022-06-08		2023-09-20
Issue Date	Revised Date
2023-09-25	2022-06-08

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摘要

将钛酸丁酯的水解物与铜离子复合,利用超声水热法制备了TiO₂/Cu复合材料。利用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、紫外-可见分光光度计(UV-Vis)、热重分析仪(TG)、激光粒度分布仪(LPSA)、X射线衍射仪(XRD)对TiO₂和TiO₂/Cu复合材料的粒径、热稳定性、晶型和分散行为等性能进行测试。研究了TiO₂和TiO₂/Cu复合材料对有机污染物的光催化降解性能。结果表明:对比模拟太阳光、自然光和无光照环境下,TiO₂/Cu复合材料对有机污染物有很好的光催化降解效率。TiO₂和TiO₂/Cu复合材料对大肠杆菌也具有较好的抗菌和抑菌性能。

Abstract

A TiO₂/Cu composite was prepared by compounding the hydrolysate of butyl titanate with copper ions using ultrasonic hydrothermal method.The particle size,thermal stability,crystal type,and dispersibility of TiO₂ and TiO₂/Cu composite materials were characterized and tested by means of SEM,TEM,UV-Vis,TG,LPSA,and XRD.The photocatalytic degradation properties of TiO₂ and TiO₂/Cu composite on organic pollutants were studied.Under simulated sunlight,nature sunlight,and no light,respectively,the TiO₂/Cu composite materials showed perfect photocatalytic degradation properties.Both TiO₂ and TiO₂/Cu composites also exhibited antibacterial and bacteriostatic properties against Escherichia coli.

关键词

TiO₂ / 光催化 / 降解 / 抗菌性能 / 复合材料

Key words

TiO₂ / photocatalysis / degradation / antibacterial property / composite

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TiO₂/Cu复合材料的光催化降解和抗菌性能研究及机理分析[J]. 化工新型材料, 2023, 51(9): 209-212 DOI:10.19817/j.cnki.issn1006-3536.2023.09.038

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