Photocatalytic Activity in the 2,4-Dinitroaniline Decomposition Over TiO2 Sol-Gel Derived Catalysts
保存先:
| 出版年: | Journal of Sol-Gel Science and Technology vol. 22, no. 1-2 (Sep 2001), p. 99 |
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| 第一著者: | |
| その他の著者: | , , , |
| 出版事項: |
Springer Nature B.V.
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| 主題: | |
| オンライン･アクセス: | Citation/Abstract Full Text - PDF |
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| 抄録: | Titania was prepared by the sol-gel method from titanium alkoxide. Depending on the pH of the gelling solution, specific surface areas between 88 and 10 m2/g were obtained. The band gap (Eg) of the samples was found between 3.05 and 3.32 eV. In samples gelled at pH5 and 9 and calcined at 400°C only anatase phase is observed, while for pH3 and pH7 brookite, anatase and rutile or anatase-rutile phases coexist. It was found that the photoactivity in the 2,4-dinitroanailine decomposition depends on the Eg and on the crystalline phases. The highest activity corresponds to the catalysts having the lowest Eg and more than one crystalline phases co-existing. |
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| ISSN: | 0928-0707 1573-4846 |
| DOI: | 10.1023/A:1011272521955 |
| ソース: | Materials Science Database |