CuO/TiO/ZSM-5复合材料的制备及其光催化/抗菌性能

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关键词： CuO/TiO2/ZSM-5 ；光催化性；抗菌性；浸渍-煅烧法 中图分类号：0643 文献标志码：A DOI：10.3969/j.issn.1003-9015.2025.03.016

Abstract： In order to improve the visible photocatalytic and antibacterial properties of TiO 2 /ZSM-5，CuO/TiO 2 / ZSM-5 composites with visible photocatalyticandantibacterial properties were prepared byimpregnation-calcination method using Cu（NO3）2 ， Ti（SO4）2 and ZSM-5 as raw materials. X-ray diraction analyzer（XRD），X-ray photoelectron spectrometer （XPS），gas adsorption instrument，scanning electron microscopy-energy spectrometer（SEMEDS），UV-visible difuse reflection spectrometer（UV-Vis DRS），X-ray fluorescence spectrometer（PL），electron paramagnetic resonance spectrometer（EPR）and inductively coupled plasma emision spectrometer （ICP）were used to characterize the composition of the material.The photocatalytic propertyof the material was evaluated by methylorange solution，and the antibacterial property of the material was evaluated byEscherichia coli and Staphylococcus aureus. The results show that the CuO/TiO /ZSM-5 compositeswith high specific surface area and pore volume can be synthesized by impregnation-calcination method. When the molar ratio of CuO/TiO is 0.5% ，the asprepared 0.5CuO/TiO2/ZSI 1-5 sample has a relatively lower electron-hole recombination rate，a wide photoresponse range，and a high production amount of active species such as ⋅02- and·OH，and exhibiting excellent photocatalytic and antibacterial properties.The removal rate of methyl orange reaches 95% after 150min illumination under xenon lamp，and the antibacterial rates of Escherichia coli and Staphylococcus aureus reach 75.2% and 83.3% ， 97.6% and 98.5% under dark condition and illumination for 5min ，respectively.

Key words ： CuO/TiO2/ZSM-5 ；photocatalytic property ；antibacterial property；impregnation-calcination method

1前言

二氧化钛（ TiO2 ）具有无毒、价廉、稳定性高、生物相容性好、光催化活性较高等特性，在污染物降解和抗菌等方面极具应用前景，是目前研究最多、最重要的光催化剂之一[1-3]。（剩余16904字）