| ZnO/TiO2复合粒子的抗菌性能研究 |
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| 引用本文： | 胡亚微,贺惠蓉,张弘弛,马养民,顾鑫.ZnO/TiO2复合粒子的抗菌性能研究[J].西北轻工业学院学报,2013(4):59-62. |
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| 作者姓名： | 胡亚微 贺惠蓉 张弘弛 马养民 顾鑫 |
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| 作者单位： | [1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021 [2]太仓中化环保化工有限公司,江苏太仓215433 |
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| 基金项目： | 国家自然科学基金项目（21201115）;教育部高等学校博士点学科专项科研基金新教师类资助课题（20116125120004） |
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| 摘 要： | 采用溶胶凝胶法制备了ZnO/TiO2复合粒子,通过XRD、SEM对所制备粉体颗粒的物相组成以及表面形貌进行表征,通过K-B纸片扩散法研究了紫外光照后ZnO/TiO2复合粒子的抗菌性能.结果表明,所制备的ZnO/TiO2复合粒子对革兰氏阴性菌大肠杆菌(Esche-richia coli)和绿脓杆菌(Pseudomonas aeruginosa)均具有良好的抑菌效果.并对ZnO/TiO2复合粒子的抑菌机理做了初步探讨,ZnO/TiO2复合粒子在紫外光照射下产生活性自由基(主要为.OH),具有强氧化性,产生优良的抗菌性能.
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| 关 键 词： | 溶胶凝胶法 ZnO复合粒子 抗菌活性 |
Antibacterial activity of ZnO/TiO2 composite particle |
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| HU Ya-wei,HE Hui-rong,ZHANG Hong-chi,MA Yang-min,GU Xin.Antibacterial activity of ZnO/TiO2 composite particle[J].Journal of Northwest University of Light Industry,2013(4):59-62. |
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| Authors: | HU Ya-wei HE Hui-rong ZHANG Hong-chi MA Yang-min GU Xin |
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| Affiliation: | 1. Key Laboratory of Auxiliary Chemistry ＆ Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science ＆ Technology, Xi＇an 710021, Chinal 2. Sinoehem Environmental Protection Chemicals (Taicang) Co., Ltd., Taicang 215433, China) |
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| Abstract: | ZnO/TiO2 composite particles were fabricated through sol-gel method. The phase, crystallographic structure and surface topography of the ZnO/TiO2 composite particles were charactered by XRD and SEM. The antibacterial activities of the ZnO/TiO2 composite particles after ultraviolet irradiation were performed by the K-B disk diffusion method. The resuits show that the ZnO/TiO2 composite particles display great antibacterial activity against Escherichia coli and Pseudornonas aeruginosa. The mechanism of antibacterial activity of ZnO/TiO2 composite particles is discussed. The active oxidative species （mainly ·OH）, which were produced on the surfaces of ZnO/TiO2 composite particles after ultraviolet irradiation, lead to the great antibacterial activity. |
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| Keywords: | sol-gel method ZnO composite particles antibacterial activity |
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