https://scholars.lib.ntu.edu.tw/handle/123456789/445669
標題: | Enhanced TiO<inf>2</inf> photocatalysis by Cu in hydrogen production from aqueous methanol solution | 作者: | Wu, N.-L. Lee, M.-S. NAE-LIH WU |
關鍵字: | Cu; Hydrogen; Methanol; Phototcatalysis; TiO2 | 公開日期: | 2004 | 卷: | 29 | 期: | 15 | 起(迄)頁: | 1601-1605 | 來源出版物: | International Journal of Hydrogen Energy | 摘要: | Cu particles have been deposited on TiO2 by incipient-wetness impregnation followed by low-temperature (400°C) calcination/reduction, and the metallization process leads to significant enhancement in photocatalytic activity of TiO2 for H2 production from aqueous methanol solution. The activity exhibits up to 10-fold enhancement at the optimum loading of ∼ 1.2 wt% Cu. Spectroscopic studies indicated that the Cu particles were oxidized during reaction to have a valence lower those of thermally oxidized particles, which showed inferior activities. Dissolution of Cu ion in TiO 2 lattice, in contrast, resulted in reduction in photocatalytic activity. © 2004 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/445669 | DOI: | 10.1016/j.ijhydene.2004.02.013 | SDG/關鍵字: | Copper; Corrosion; Hydrogen; Methanol; Oxidation; Photocatalysis; Electronic energy band structures; Hydrogen production; Photocatalytic activity; Titanium dioxide |
顯示於: | 化學工程學系 |
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