新型Ag/TiO_2-NTs复合材料合成及其抗菌性能研究  

Preparation and Antibacterial Activity of New Ag/TiO_2 Naotube Composites

作　　者：韦庆敏[1] 何军[1] 刘荣军[1] 李家贵[1] 

机构地区：[1]玉林师范学院化学与材料学院广西农产品加工重点实验室(培育基地)广西高校桂东南特色农产资源高效利用重点实验室,广西玉林537000

出　　处：《玉林师范学院学报》2015年第2期40-44,共5页Journal of Yulin Normal University

基　　金：玉林师范学院重点项目(2012YJZD14);玉林师范学院教授基金项目(G20130014)

摘　　要：采用水热法制备了TiO2纳米管,并采用光化学沉积法制得含Ag量不同的Ag/TiO2-NTS纳米管复合材料;利用XRD、TEM等分析手段对Ag/TiO2-NTS复合材料进行表征,并研究了Ag/TiO2-NTS复合材料的抗菌性能.采用琼脂孔穴扩散法探索了水热反应时间、煅烧温度、载银量对不同菌种抗菌性能的影响.结果表明:水热反应24h,煅烧温度为400℃,掺银量1%的Ag/TiO2复合材料对枯草芽孢杆菌的抗菌性能最好,抑菌圈直径达14.6mm.Photocatalyst TiO2-NTs was synthesized by hydrothermal method. The Ag/TiO2-NTs composites with different Ag content were synthesized by chemical deposition-photoreduction method, and characterized by XRD, TEM, UV-Vis. The antibacterial Activity of New Ag/TiO2 Naotube composites were investigated. By means of agar hole diffusion method, the impact of hydrothermal reaction time, calcination temperature and the amount of silver loaded on the antibacterial properties of different strains were observed and analyzed. The results showed that, the hydrothermal reaction of 24 h, calcination temperature was 400℃. Ag/TiO2 composites silver with 1% doped quantity（atomic ratio Ag： Ti = 1：100） has the strongest antibacterial effect on Bacillus subtilis; the diameter of inhibition zone was 14.6mm.

关 键 词：Ag/TiO2复合材料 水热法 掺银 抗菌性能 

分 类 号：O614.411[理学—无机化学] TB33[理学—化学]