Preparation of a colloidal array of NaTaO3 nanoparticles via a confined space synthesis route and its photocatalytic application

被引：39

作者：

Yokoi, Toshiyuki ^{[1
]}

Sakuma, Junya ^{[1
]}

Maeda, Kazuhiko ^{[3
]}

Domen, Kazunari ^{[2
]}

Tatsumi, Takashi ^{[1
,2
]}

Kondo, Junko N. ^{[1
]}

机构：

[1] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

[3] PRESTO JST, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2011年 / 13卷 / 07期

关键词：

HYDROTHERMAL SYNTHESIS; AMINO-ACIDS; TANTALATE; POLYVINYLPYRROLIDONE; MECHANISM; NANORODS; O-2; H-2;

D O I：

10.1039/c0cp02141e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The confined space synthesis method has been applied to the preparation of sodium tantalate (NaTaO3); hydrothermal reaction of NaOH and Ta2O5 was carried out in the pores of a three-dimensional mesoporous carbon, which was replicated by the colloidal array of silica nanospheres (SNSs) 20 nm in size. This approach led to the formation of a colloidal array of NaTaO3 nanoparticles 20 nm in size with a surface area of 34 m(2) g(-1). The photocatalytic performance of the colloidal array of NaTaO3 nanoparticles for overall water splitting under UV irradiation (lambda > 200 nm) was evaluated after loading a NiO cocatalyst onto NaTaO3 samples. The NiO-loaded NaTaO3 nanoparticles showed photocatalytic activity for overall water splitting more than three times as high as non-structured bulk NaTaO3 particles.

引用

页码：2563 / 2570

页数：8

共 26 条

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