纳米ZnO/TiO_2复合粉体的制备及其抗菌性能研究  

Preparation and Antibacterial Properties of ZnO/TiO_2 Nanocomposite Powders

作　　者：刘佳妮[1] 郝晗[1] 高尚[1] 孙彤[1] 励建荣[1] 

机构地区：[1]渤海大学化学化工与食品安全学院,辽宁锦州121001

出　　处：《食品研究与开发》2013年第24期243-246,共4页Food Research and Development

基　　金：辽宁省食品安全重点实验室开放课题(LNSAKF2011022);辽宁省食品质量与安全专业优秀教学团队大学生创新研究计划项目

摘　　要：以TiCl4和ZnCl2为主要原料,采用水热法制备ZnO/TiO2复合粉体。以抑菌圈大小为评价指标,研究了不同工艺条件下制得的ZnO/TiO2复合粉体对大肠杆菌和金黄色葡萄球菌的抗菌性能的影响。同时,对制备的粉体进行了XRD、SEM、UV-vis和FT-IR表征。研究结果表明,Ti︰Zn摩尔比和煅烧处理影响ZnO/TiO2纳米复合粉体的晶体结构、粒度和微观形貌。Ti︰Zn摩尔比为1︰2的纳米复合粉体经煅烧后具有较好的抗菌性能。ZnO/TiO2 nanocomposite powders were synthesized by hydrothermal method with titanium tetrachloride and zinc chloride as raw materials. With the antibacterial circle size as the evaluation pointer , the antibacterial properties of ZnO/TiO2 nanocomposite powders on Escherichia coli and Staphylococcus aureus were studied which prepared in different process conditions. Meanwhile , the powders were characterized by XRD, SEM, UV and FT-IR. The results showed that the crystal structure , granularities and microstructure of the composite powders were affected by the molar ratio of Ti to Zn and calcined treatment. The antibacterial properties of the ZnO/TiO2 nanocomposite powders was better than the others when the molar ratio of Ti to Zn was 1︰2, and the samples were calcined.

关 键 词：ZNO TIO2 纳米复合粉体 水热法 抗菌性能 

分 类 号：TB383.1[一般工业技术—材料科学与工程]