Low temperature preparation of nano TiO₂ and its application as antibacterial agents

来源期刊：中国有色金属学报(英文版)2007年增刊第1期(Part ⅡB)

论文作者：邓桦 K. Cheuk 郑卫宁 文晨 肖长发

文章页码：700 - 703

Key words：nano- titania; crystal grain; antibacterial properties; cotton fabric

Abstract: A low temperature preparation of nano TiO₂ using sol-gel method was proposed. The antibacterial properties of the treatment solution and the treated cotton fabrics obtained via a dip-padding process were evaluated. XRD pattern shows that the nano TiO₂ produced is an anatase phase. Aqueous nano-dispersion of the nano TiO₂ exhibites positive results as an antibacterial finishing agent for cotton fabrics. The treatment solution possesses antibacterial rates of over 92% and 88.9% against Escherichia coli and Bacillus subtilis, respectively. The treated fabrics are slightly downgraded but still maintained over 89% and 83% of reduction towards the same bacteria. After washing for 50 times, the antibacterial performances of the treated fabric still remains at a relatively high level, indicating the durable characteristic of nano TiO₂ treatment.

基金信息：Municipal Natural Science Foundation of Tianjin, China