標題: Photocatalysis by Electron Transfer between Different-sized Anatases
作者: Ke, Tsung-Ying
Lee, Chi-Young
Chiu, Hsin-Tien
應用化學系
Department of Applied Chemistry
關鍵字: Photocatalysis;Electron transfer;pH;P25
公開日期: 15-Jun-2010
摘要: In the solution state, photocatalysis of micro- and nano-sized anatases can be optimized at flat band and in a high pH solution, respectively. Furthermore, a remarkable photocatalyst that can be adopted over a wide range of pH values was produced by mixing commercial micro- and nano-sized anatases. Mixing causes the electron transfer between the identical phase but different-sized TiO(2) particles, subsequently separating the electrons and holes, as well as greatly facilitating photocatalysis. As is well known, the commercially available photocatalyst P25, a mixture of anatase and rutile, achieves a superior photocatalytic performance from pH 3 to 10, owing to the electron transfer between the various phases. This study elucidates these mixed photocatalysts, P25 and mixture of micro and nano-sized anatases. Crown Copyright (C) Published by Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.apcata.2010.03.052
http://hdl.handle.net/11536/5258
ISSN: 0926-860X
DOI: 10.1016/j.apcata.2010.03.052
期刊: APPLIED CATALYSIS A-GENERAL
Volume: 381
Issue: 1-2
起始頁: 109
結束頁: 113
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