Photocatalytic Activity Against Penicillium Expansum of Ag-doped TiO2/SnO2/SiO2

摘要：

The effect of 0.1-1 mol％Ag doping on crystallite size, morphology, photocatalytic and fungal growth suppression activities of TiO2/SnO2/SiO2 nanocomposite powders were investigated. The powder was synthesized by sol-gel method and studied for physicochemical properties by XRD, spectrometric techniques, FTIR, SEM, EDX and BET. The anatase structure was formed after calcination at 500℃. Photocatalytic activities towards Penicillium expansum growth suppression correlated to the amount of sliver doped in TiO2/SnO2/SiO2 nano-composite powder under ultraviolet radiation. Ag 1.0mol％ doped in TiO2/SiO2/SnO2 composite has a significant effect on antifungal behaviour. It could completely kill Penicillium expansum within one day of photacatalytic treatment under UV irradiation.

关键词： Photocatalytic Ag-doped TiO2/SnO2/SiO2 sol-gel TiO2 Penicillium expansum

作者: Jularat Yaithongkum Kalayanee Kooptarnond Lek Sikong Duangporn Kantachote

作者单位: Department of Mining and Materials Engineering,Faculty of Engineering Department of Mining and Materials Engineering,Faculty of Engineering NANOTEC Center of Excellence a Department of Microbiology,Faculty of Science,Prince of Songkla University (PSU),Hatyai,Thailand 901

会议类型: 国际会议

会议名称: the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)

会议地点: 三亚

会议语种:英文

页码: 212-217

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）