期刊論文
| 學年 | 96 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2007-09-01 |
| 作品名稱 | Phase development and photocatalytic ability of gel-derived P-doped TiO2 |
| 作品名稱（其他語言） | |
| 著者 | Yu, Hsuan-Fu |
| 單位 | 淡江大學化學工程與材料工程學系 |
| 出版者 | New York: Cambridge University Press |
| 著錄名稱、卷期、頁數 | Journal of Materials Research 22(9), pp.2565-2572 |
| 摘要 | P-doped titanium dioxide (TiO2) nanoparticles were synthesized using a sol-gel method. The ethanol solution of Ti(OC2H5)4 was mixed with an aqueous solution of H3PO4 to undergo hydrolysis and polycondensation at 90 °C for 4 h. The resultant solids were centrifugally filtered, dried, and then calcined at different temperatures, followed by chemical and physical characterization. At an atomic ratio of P/Ti = 0.03, the formed P-doped TiO2 can preserve its anatase structure at 900 °C for 3 h, with no formation of other phases. Further increasing the P/Ti atomic ratio in the P-doped TiO2 may stabilize the anatase–TiO2 at even higher temperatures but may lead to the formation of TiP2O7 or (TiO)2P2O7. A test of photocatalysis showed that the P-doped TiO2 nanoparticles, with a P/Ti ratio = 0.03 and after being calcined at temperatures between 400 and 800 °C, can decompose ≥98 mol.% of the methylene blue (MB) after 30 min of irradiation by 365-nm ultraviolet light, while P25 particles can only decompose 71 mol% of the MB. |
| 關鍵字 | Dopant; Phase transformation; Sol-gel |
| 語言 | en |
| ISSN | 0884-2914 2044-5326 |
| 期刊性質 | 國外 |
| 收錄於 | EI SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | 紙本 電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/44162 ) |