教師資料查詢 | 類別: 期刊論文 | 教師: 余宣賦 Yu, Hsuan-fu (瀏覽個人網頁)

標題:Preparation and characterization of transparent TiO2 thin films coated on fused-silica substrates
學年97
學期1
出版(發表)日期2009/01/01
作品名稱Preparation and characterization of transparent TiO2 thin films coated on fused-silica substrates
作品名稱(其他語言)
著者Yu, Hsuan-Fu; Hu, Fa-Chun
單位淡江大學化學工程與材料工程學系
出版者Secaucus: Springer New York LLC
著錄名稱、卷期、頁數Journal of Sol-Gel Science and Technology 52(1), pp.158-165
摘要The transparent TiO2 thin films coated on fused-SiO2 substrates were prepared by the sol–gel method and spin-coating technique. Effects of calcination temperature on crystal structure, grain size, surface texture, and light transmittance of the films were investigated. After calcining at 600–1,200 °C, the thicknesses of the TiO2 films were all around 80 nm and the molecular structures of the films were anatase, even at 1,200 °C. The calcined TiO2 films had the ultraviolet light (wavelength 200–400 nm) transmittances of ≦29% and the visible light (wavelength 400–800 nm) transmittance of ≧72%. By photocatalytically decomposing the methylene blue (MB) in water, the photocatalytic activities of the TiO2 thin films were measured and represented using the characteristic time constant (τ) for the MB degradation. While the films prepared at 1,000 and 1,200 °C photodecomposed about 54 mol% of the MB in water (the corresponding τ ≈ 14.8 h) after exposing to 365-nm UV light for 12 h, the films prepared at 600 and 800 °C had smaller s (≈ 9.0 h) and photodecomposed about 74 mol% of the MB in water at the same testing conditions.
關鍵字Titanium oxide; Photocatalysis; Structural properties; X-ray diffraction; Thin films
語言英文
ISSN0928-0707; 1573-4846
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者Yu, Hsuan-Fu
審稿制度
國別美國
公開徵稿
出版型式紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!