Study on Effect Factors for Antibacterial Property of TiO2 Powder Doped with Ag+
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摘要: 采用sol- gel法制备了不同摩尔比的掺银二氧化钛粉体材料,并且采用琼脂孔穴扩散-抑菌圈法研究了紫外光照时间、光源、掺银TiO2粉末加入量、不同实验菌种等因素对掺银TiO2粉体抗菌性能的影响。实验表明:Ag-TiO2粉末在紫外光照60~90 min,加入量为2~4 mg时具有良好的抗菌性能,是一种不受光源和天气影响的广谱抗菌剂。
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关键词:
- 二氧化钛 /
- 掺银 /
- 琼脂孔穴扩散-抑菌圈法 /
- 抗菌性能
Abstract: Pure TiO2 powder and Ag+ doping TiO2 powder were prepared by sol-gel process.The effect of UV illumination time,light source,Ag+ ratio in powder and different experimental bacteria on antibacterial property of Ag-TiO2 powder was investigated by agar hole diffusion-inhibition zone method.The effect of Ag-TiO2 powder dosage in agar hole on the antibacterial result was tested.It was found that the Ag-TiO2 powder was of good antibacterial property under different light source conditions while the UV illumination time was 60～90 min and the dosage was 2～4 mg,so it could be a sort of widely used antimicrobial.-
Key words:
- TiO2 /
- doping Ag /
- agar hole diffusion- inhibition zone method /
- antibacterial property
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