扫描电子显微镜
锐钛矿
材料科学
二氧化钛
薄膜
旋涂
抗菌活性
核化学
透射率
钛
化学工程
分析化学(期刊)
纳米技术
化学
色谱法
复合材料
有机化学
光催化
冶金
光电子学
催化作用
细菌
工程类
遗传学
生物
作者
Ali A. Taha,Selma M. H. Al-Jawad,M Salim
标识
DOI:10.1142/s0218625x18501111
摘要
In this study, titanium dioxide thin films were successfully prepared via sol–gel method. Titanium tetraisopropoxide (TTIP) as a precursor solution was used to prepare different concentrations and deposited by spin coating. All prepared films were inspected by X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscopy (SEM). XRD patterns show that all samples have anatase crystal structure. Transmittance spectra were measured by using UV-Vis spectrophotometer. The optical band gaps were 3.55, 3.62 and 3.78 eV for TTIP concentrations of 6, 6.3 and 6.6[Formula: see text]ml, respectively. Antibacterial activity of TiO 2 films against S. aureus and E. coli was evaluated by international recognized test (JIS Z 2801). The test revealed incrementally increase in antibacterial activity of the films with TTIP concentrations activated by UV light.
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