无机材料学报2011，Vol.26Issue(5)：517-522,6.DOI:10.3724/SP.J.1077.2011.00517
氮氟共掺杂二氧化钛薄膜的制备、表征及杀菌性能
Preparation, Characterization and Bactericidal Activity of N-F-codoped TiO2 Film
摘要
Abstract
N-F-codoped TiO2 semiconductor Sol (N-F-TiO2) was synthesized by Sol-Gel method, and N-F-TiO2 film was prepared on soda-lime glass using silk-screen printing. X-ray diffraction (XRD) of N-F-TiO2 exhibits significant diffraction peaks representing the characteristic of anatase phase and contain trace amount of brookite. X-ray photoelectron spectroscope (XPS) test indicates that N element exists with N-Ti-O bonding in the crystals, while F element exists as a dopant in the lattice of TiO2 or adsorbs on the surface of N-F-TiO2. Diffuse reflectance spectra (DRS) of N-F-TiO2 shows increased absorption in the range of 300-500 nm compared with that of undoped TiO2 film. Antibacterial abilities of N-F-TiO2 films under 60min UV and visible light irradiation are identified using E. coli. The prepared N-F-TiO2 films exhibit excellent antibacterial abilities as observed both in bacterial surviving test and cell membrane damaging test. After the irradiation of UV-A, the relative survival percentage of E.coli decreases to 0 and the maximum content of malonaldehyde (MDA) is 1.4 nmol/mg (cell dry weight). Under the visible light irradiation, relative survival percentage of E. coli decreases to 10％ and the maximum content of malonaldehyde is 0.9 nmol/mg (cell dry weight).关键词
氮掺杂/氟掺杂/TiO2薄膜/光催化/杀菌Key words
nitrogen doping/ fluorine doping/ TiO2 film/ photocatalysis/ sterilization分类
通用工业技术引用本文复制引用
丁卉,张诺,戎非,付德刚..氮氟共掺杂二氧化钛薄膜的制备、表征及杀菌性能[J].无机材料学报,2011,26(5):517-522,6.基金项目
国家"863"计划项目(2006AA10Z436) （2006AA10Z436）
江苏省科技厅社会发展项目(BE2008643) （BE2008643）
