P/Si-TiO2 transparent films with high anatase stability and photocatalytic activity
學年 99
學期 2
出版(發表)日期 2011-04-01
作品名稱 P/Si-TiO2 transparent films with high anatase stability and photocatalytic activity
著者 Yu, Hsuan-Fu; Chen, Li-Hsun
單位 淡江大學化學工程與材料工程學系
出版者 Kidlington: Pergamon
著錄名稱、卷期、頁數 Journal of Physics and Chemistry of Solids 72(4), pp.269-275
摘要 The anatase-TiO2 transparent films, containing 3 mol% of Si and P elements (as dopants), were synthesized using a process combining the sol–gel method and spin-coating technique. Effects of relative ratio of dopants and calcination temperature on phase transformation, grain growth, surface morphology, light transmittance, band-gap energy and photocatalytic activity of the P/Si-TiO2 films were examined and their results were compared with those of the undoped-TiO2 and Si-TiO2 films. The P/Si-TiO2 films calcined at temperature between 600 and 900 °C adhered strongly to the surface of fused-silica substrate and were composed of anatase-TiO2 monophase. The photocatalytic activities of the films were measured and represented using a characteristic time constant (τ) for the methylene blue (MB) photodegradation. The small τ stands for high photocatalytic ability of the film. The P/Si-TiO2 film, containing equalmolar Si and P dopants, calcined at 800 °C gave the best performance in photocatalysis; this film had τ=5.7 h and decomposed about 90 mole% of MB in the water after 12 h of the 365-nm UV light irradiation.
關鍵字 A. Oxides; A. Thin films; B. Sol–gel growth; B. Chemical synthesis; D. Phase transitions
語言 en
ISSN 0022-3697
期刊性質 國外
收錄於 SCI EI
通訊作者 Yu, Hsuan-Fu
國別 GBR
出版型式 紙本

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/60392 )