Rosiyah Binti, Yahya and Hayashi, H. and Nagase, T. and Ebina, T. and Onodera, Y. and Saitoh, N. (2001) Hydrothermal Synthesis of Potassium Hexatitanates under subcritical and supercritical water conditions and its application in Photocatalysis. Chemistry of Materials, 13 (3). pp. 842-847. ISSN 08974756, DOI https://doi.org/10.1021/cm000561p.
Full text not available from this repository.Abstract
Hydrothermal synthesis of potassium hexatitanate was carried out under various subcritical and supercritical water conditions using potassium hydroxide and titanium tetraisopropoxide as starting materials. Characterization of these hydrothermally synthesized potassium hexatitanates by XRD, SEM, TEM, and thermal analysis showed that long, felted-like fibers of potassium hexatitanates were formed and these fibers are thermally stable up to 1273 K. The use of these fibers as photocatalysts in water decomposition was investigated using ruthenium oxide as the catalytic active phase. Photocatalytic activitiy in the water decomposition reaction was found to be much higher in comparison with the solid state synthesized photocatalyst. Activites of more than 13-fold were obtained for the photocatalysts synthesized under subcritical water conditions and between 27- and 59-fold for those synthesized under supercritical water conditions for water decomposition.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | oxide potassium hydroxide ruthenium titanium water adsorption article catalysis crystal decomposition scanning electron microscopy solid state synthesis thermal analysis transmission electron microscopy X ray diffraction |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Chemistry |
| Depositing User: | miss munirah saadom |
| Date Deposited: | 08 Mar 2013 08:41 |
| Last Modified: | 08 Mar 2013 08:41 |
| URI: | http://eprints.um.edu.my/id/eprint/6692 |
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