Improvement of photocatalytic activity of titanate pyrochlore Y2Ti2O7 by addition of excess Y

被引：43

作者：

Higashi, M

Abe, R

Sayama, K

Sugihara, H

Abe, Y

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan

[2] Sci Univ Tokyo, Fac Sci & Technol, Noda, Chiba 2788510, Japan

来源：

CHEMISTRY LETTERS | 2005年 / 34卷 / 08期

关键词：

D O I：

10.1246/cl.2005.1122

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

We found that Y2Ti2O7 samples prepared by polymerized complex method with excess amounts (5%) of Y showed higher photocatalytic activity for overall water splitting reaction than those prepared with a stoichiometric ratio of Y and Ti (1:1). The excess Y prevented the formation of the impurity TiO2 rutile which forms on the surface of catalysts at high temperatures and thereby decreases photocatalytic activity.

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页码：1122 / 1123

页数：2

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