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第 35 卷第 9 期 精 细 化 工 Vol.35, No.9
201 8 年 9 月 FINE CHEMICALS Sept. 2018

功能材料
TiO 纳米复合材料抗菌性能
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张静涛 1,2 ，王雪莹 1,2 ，刘 行 1,2 ，袁明明 1,2 ，穆立龙 ，吴亚军 ，刘炳坤
（1. 河南省冷链食品质量安全控制重点实验室，郑州轻工业学院食品与生物工程学院，河南 郑州
450002；2. 河南省食品安全与生产协同创新中心，河南 郑州 450002；3. 郑州轻工业学院材料与化学工
程学院，河南 郑州 450002）

摘要：通过沉淀、酸化以及煅烧，合成了具有表面等离子效应（Surface Plasmon Resonance，SPR）的金修饰氧
化钛（Au/TiO 2 ）纳米复合材料。利用 XRD、XPS、TEM 和 UV-Vis 对合成的纳米复合材料进行了表征，并对其
进行了抗菌性测试。结果显示：具有 SPR 效应的 Au 纳米颗粒可以显著提高 TiO 2 的可见光吸收性能，并随着煅
烧温度的升高，材料可见光吸收峰从 550 nm 红移到 670 nm，这使得材料具有良好的太阳光响应能力。复合材
料对大肠杆菌(E. coli)的抗菌测试结果表明：在 450 ℃煅烧后得到的金修饰锐钛矿相和金红石相双相混晶材料具
有最好的光催化抗菌性能，可见光下催化反应 5 h 后，E. coli 的存活率为 0.304%。
关键词：表面等离子体共振(SPR)；Au/TiO 2 ；可见光；光催化；抗菌；功能材料
中图分类号：0644.15 文献标识码：A 文章编号：1003-5214 (2018) 09-1511-07

Antibacterial Activity of Titanium Dioxide Nanocomposites

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ZHANG Jing-tao , WANG Xue-ying , LIU Xing , YUAN Ming-ming ,
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MU Li-long , WU Ya-jun , LIU Bing-kun
（1. Henan Key Laboratory of Cold Chain Food Quality and Safety Control, School of Food and Bioengineering,
Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China; 2. Henan Collaborative Innovation Centre
of Food Production and Safety, Zhengzhou 450002, Henan, China; 3. Department of Material and Chemical
Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China）
Abstract: Gold modified titanium dioxide nanocomposites (Au/TiO 2) with surface plasmon resonance
(SPR) effect were synthesized by precipitation method, followed by acidification and calcination. The
as-synthesized Au/TiO 2 nanocomposites were characterized by XRD, XPS, TEM and UV-Vis analysis and
their antibacterial activities were investigated. The results showed that the gold nanoparticles could
significantly improve the visible light absorption properties of TiO 2 due to SPR effect. With the increase of
calcinated temperature, the visible light absorption peak of the nanocomposites changed from 550 nm to
670 nm, which just matched the spectral response of the solar spectrum. The antibacterial activity of
Au/TiO 2 for Escherichia coli (E. coli) demonstrated that the anatase/rutile mixed phase Au/TiO 2
nanocomposite, which was obtained by calcination at 450 ℃, had the highest photocatalytic antibacterial
property. The survival rate of E. coli was only 0.304% when E. coli was treated with the above-mentioned
Au/TiO 2 nanocomposite under visible light irradiation for 5 h.
Key words: surface plasmon resonance (SPR); Au/TiO 2; visible light; photocatalysis; antibacterial;
functional materials
Foundation item: Joint Funds of the Natural Science Foundation Committee with Henan Province
Government for Fostering Talents (U1504311)

病原微生物长期以来一直威胁着人类和动植 解、变质、劣化、腐败等，带来严重的经济损失。
物的健康，同时有害微生物还会导致一些产品分 为了保证产品质量，人们采用各种方法来杀灭病原

收稿日期：2017-10-30; 定用日期：2018-04-17; DOI: 10.13550/j.jxhg.20170884
基金项目：国家自然科学基金河南省联合基金（U1504311）
作者简介：张静涛（1982—），男，博士，讲师，E-mail：jtzhang@zzuli.edu.cn。