Metastable Sr0.5TaO3 Perovskite Oxides Prepared by Nanosheet Processing

被引：41

作者：

Inaba, Keigo ^{[1
]}

Suzuki, Shinya ^{[1
]}

Noguchi, Yuji ^{[1
]}

Miyayama, Masaru ^{[1
]}

Toda, Kenji ^{[2
]}

Sato, Mineo ^{[3
]}

机构：

[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan

[2] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

[3] Niigata Univ, Fac Engn, Dept Chem & Chem Engn, Niigata 9502181, Japan

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2008年 / 35期

关键词：

Nanotechnology; Nanostructures; Tantalum; UV/Vis spectroscopy; Surface chemistry;

D O I：

10.1002/ejic.200800776

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Metastable Sr0.5TaO3 with a perovskite structure was prepared by using layer-structured H2Sr1.5Ta3O10 by two different processes: direct dehydration and nanosheet processing, and the photocatalylic activities of the obtained structures were investigated for the evolution of H-2 and O-2 from distilled water under UV light irradiation. The average gas evolution rates were 66 mu mol h(-1) (H-2) and 1.6 mu mol h(-1) (O-2) for Sr0.5TaO3 prepared by direct dehydration, whereas those obtained by nanosheet processing were 1.26 mu mol h(-1) (H-2) and 33 mu mol h(-1) (O-2). It was shown that nanosheet processing is effective for obtaining metastable Sr0.5TaO3 with high photocatalytic activities. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

引用

页码：5471 / 5475

页数：5

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