Effective Photocatalytic Disinfection of Pathogenic Bacteria with Ag/Si02/Ti02 Nanotube Arrays Film under Visible Light Irradiation，第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）-中国聚合物网,论文下载

Effective Photocatalytic Disinfection of Pathogenic Bacteria with Ag/Si02/Ti02 Nanotube Arrays Film under Visible Light Irradiation

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关键词：

photocatalytic inactivation ag/si02/ti02 nanotube arrays visible light
pathogenic bacteria

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100K

所属学科：

分子表征

来源：

第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）

简介：

ThephotocatalyticinactivationofpathogenicbacteriainsalinemediawithaternaryAg/Si02/Ti02nanotubearraysfilmwasinvestigated,andthecontrolexperimentalwasperformedinthedarkforcomparison.Thecatalystwassynthesizedbyafaciletwo-stepmethodandfoundtobeeffectiveforthedisinfectionofEscherichiacoli,aGram-negativebacterium,andStaphylococcusaureus,aGram-positivebacteriumundervisiblelight(A>420nm)irradiation.Thevisible-light-driven(VLD)Ag/Si02/Ti02nanotubearraysexhibitedmuchsuperiortootherreferencephotocatalystssuchasTi02,Si02/Ti02andAg/Ti02.Moreover,theroleofhydroxylradicalsformedin0.9%salinemediaundervisiblelightirradiationwasinvestigated.ItwasfoundthattheconcentrationofhydroxylradicalsincreasedintheorderofTi02determinationofpotassiumion(K+)leakagefromthekilledbacteria.ThisstudyprovidedapotentialeffectiveVLDphotocatalysttodisinfectthebacterialcellsinthesalinewater.Thevisible-lightphotocatalyticmechanismofAg/Si02/Ti02nanotubearraysandfactorscontributingtoitshighphotostabilityin0.9%salinewaterwereproposed.

作者：

Z. M. Hu, W. J. Liao, Y. R. Zhang

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2013-07-03 14:20:42

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