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时间:2020-04-21
《TiO2镀膜玻璃光催化活性影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第27卷第6期无机材料学报VO1.27NO.62012年6月JournalofInorganicMaterialsJun一2O12文章编号:1000—324X(2012)06—0633—05DoI:10_3724/SP.J.1077.2012.00633柱状晶形貌TiO2膜厚对FTO/TiO2镀膜玻璃光催化活性影响滕繁,刘涌,葛言凯2,章瑞铄,宋晨路,韩高荣(1.浙江大学硅材料国家重点实验室材料科学与工程学系,杭州310027;2.威海蓝星玻璃股份有限公司,威海264205)摘要:采用溶胶一凝胶法,在FTO(SnO2:F)低辐射镀膜玻璃衬底上制备了柱状晶体结
2、构的TiO2薄膜,获得双层结构FTO/TiO2镀膜玻璃样品.研究了TiO2薄膜厚度对FTO/TiO2镀膜玻璃样品的光催化活性、低辐射性能以及透光性能的影响.结果表明,FTO/TiO2镀膜玻璃样品光催化活性随着TiO2薄膜厚度的增加先升高后下降,在TiO2薄膜厚度为300nm时光催化活性最佳;低辐射性能随着TiO2薄膜厚度的增加而下降,但TiO2薄膜厚度为300nm时仍然具备一定的低辐射性能;透光性能与TiO薄膜膜厚的关系不大,可见光透射比保持在72%左右;表面平均粗糙度约为1am,表面光滑,不易沾染油污灰尘.该镀膜玻璃在保证低辐射建筑节能和透光的前提下,兼具
3、光催化自清洁功能,具有很好的应用前景.关键词:FTO/TiO2;溶胶一凝胶;柱状晶;光催化活性;玻璃中图分类号:TM23文献标识码:AImpactofThicknessofColumnarCrystalTiO2FilmonPh0tOcatalyticActivityofFTO/TiO2CoatedGlassTENGFan,LIUYong,GEYan.Kai,ZHANGRui.Shuo,SONGChen.Lu,HANGaoRong(1.StateKeyLaboratoryofSiliconMaterials,DepartmentofMaterialsScien
4、ceandEngineering,ZhejiangUniversity,Hangzhou310027,China;2.WeihaiBuleStarGlassHoldingCo.Ltd.,Weihai264205,China)Abstract:ColumnarcrystalstructuredTiO2thinfilmswerepreparedontheFro(SnO2:F)low-emissivitycoatedglasssubstrates,obtainingdouble—layerstructureFTO/TiOzcoatedglasssamples.Th
5、eeffectofTiO2filmthicknessonthephotocatalyticactivity,thelow—emissivityperformanceandlighttransmissionpropertiesoftheFTO/TiO2coatedglasssampleswasinvestigated.Theresultsshowedthatthephotocatalyticactivityofthesamplesincreasedfirstlyandthendecreasewiththeincreaseofthefilmthickness.T
6、hebestcatalyticactivitywasobservedforthesamplecoatedwith300nmTi02film.Thelow—emissivitypropertiesofthesamplesdeclinedastheTiO2filmthicknessincreased.Thesamplestillhavesomelow—emissivityperformancewhentheTiO2filmthicknessis300nm,whilethelighttrans—mittanceofthesampleshavelittlerelat
7、ionswiththeTiO2filmsthickness.Thevisiblelighttransmittancesofthesamplesremainatabout72%withasmoothsurface.Theaveragesurfaceroughnessofthesampleisabout1nm.TheFTO]TiO2coatedglasshasphotocatalyticself-cleaningpropertieswithexcellentlowemissiveperformanceandlighttransmittanceproperty,t
8、husguaranteeinggoodapplica
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