纳米Fe3+-TiO2薄膜的抗菌性能

2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2006-01-01 DOI:10.1109/NEMS.2006.334573

Huijun Zhang, Hongmei Liu, Changsheng Mu, C. Qiu, Dajun Wu

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引用次数: 6

摘要

为了研究纳米TiO2薄膜的抗菌性能，采用射频磁控共溅射法在玻璃表面制备了纳米Fe3+-TiO2薄膜。采用SEM、XRD和XPS对膜进行了表征。研究了铁元素和煅烧温度对薄膜结构的影响。探讨了取代杂质提高活性的原理。细菌细胞的杀菌活性由菌落在营养琼脂板上的活菌数计算出的相对存活细菌数来估计。锐钛矿相的晶粒尺寸随煅烧温度的升高而增大。XPS结果表明掺杂铁以氧化物态存在。制备的纳米Fe3+-TiO2薄膜具有较高的抗菌活性，并随着热处理温度的升高和锐钛矿晶体结构的形成而增强。

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Antibacterial Properties of Nanometer Fe3+-TiO2 Thin Films

In order to study antibacterial properties of nanometer TiO2 thin films, nanometer Fe3+-TiO2 films have been prepared on glass by RF magnetron co-sputtering method. The films were characterized by SEM, XRD, and XPS. The influence of Fe element and calcination temperature on the films structure was investigated. The principle of substitution impurity to improve the activity was discussed. The bactericidal activity for the bacteria cells was estimated by relative number of bacteria survived calculated from the number of viable cells which from colonies on the nutrient agar plates. The crystallite size of the anatase phase increases with increasing calcination temperature. XPS results show that doped-Fe is present in the oxide state. The nanometer Fe3+-TiO2 thin films exhibited a high antibacterial activity, which was enhanced with the increase of the temperature of thermal treatment and formation of anatase crystalline structure.

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2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems

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