Synthesis of nanosized NaTaO3 in low temperature and its photocatalytic performance

被引：105

作者：

He, Y

Zhu, YF ^{[1
]}

Wu, NZ

机构：

[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China

[2] Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China

[3] State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2004年 / 177卷 / 11期

基金：

中国国家自然科学基金;

关键词：

NaTaO3; hydrothermal; photocatalysis;

D O I：

10.1016/j.jssc.2004.07.011

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A simple synthetic route in mild condition to obtain nanosized NaTaO3 powder with cubic morphology is reported in which the compound was hydrothermally prepared at 120 degreesC for 12 h. The cubic crystalline structure of this nanosized NaTaO3 product was ensured by using XRD and TEM. The band gap of the nanosized NaTaO3 was 3.96eV based on UV spectrum. The hydrothermal process probably follows the dissolution-precipitation mechanism. Also this NaTaO3 powder showed high photoreactivity under UV light in gas phase and liquid phase photoreactions. (C) 2004 Published by Elsevier Inc.

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页码：3868 / 3872

页数：5

相关论文

共 24 条

[1] Characterization of LiNbO3 nanocrystals prepared via a convenient hydrothermal route [J].

An, CH ;

Tang, KB ;

Wang, CR ;

Shen, GZ ;

Jin, Y ;

Qian, YT .

MATERIALS RESEARCH BULLETIN, 2002, 37 (11) :1791-1796

[2] MECHANISM OF PHOTOCATALYTIC DECOMPOSITION OF WATER INTO H-2 AND O-2 OVER NIO - SRTIO3 [J].

DOMEN, K ;

KUDO, A ;

ONISHI, T .

JOURNAL OF CATALYSIS, 1986, 102 (01) :92-98

[3] PHOTOCATALYTIC DECOMPOSITION OF WATER INTO H-2 AND O-2 OVER NIO-SRTIO3 POWDER .1. STRUCTURE OF THE CATALYST [J].

DOMEN, K ;

KUDO, A ;

ONISHI, T ;

KOSUGI, N ;

KURODA, H .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (02) :292-295

[4] Hydrothermal synthesis and structure of a potassium tantalum defect pyrochlore [J].

Duan, NG ;

Tian, ZR ;

Willis, WS ;

Suib, SL ;

Newsam, JM ;

Levine, SM .

INORGANIC CHEMISTRY, 1998, 37 (18) :4697-4701

[5] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].

FUJISHIMA, A ;

HONDA, K .

NATURE, 1972, 238 (5358) :37-+

[6] Hydrothermal synthesis of perovskite and pyrochlore powders of potassium tantalate [J].

Goh, GKL ;

Haile, SM ;

Levi, CG ;

Lange, FF .

JOURNAL OF MATERIALS RESEARCH, 2002, 17 (12) :3168-3176

[7] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].

HOFFMANN, MR ;

MARTIN, ST ;

CHOI, WY ;

BAHNEMANN, DW .

CHEMICAL REVIEWS, 1995, 95 (01) :69-96

[8] PHOTOCATALYSTS WITH TUNNEL STRUCTURES FOR DECOMPOSITION OF WATER .1. BATI4O9, A PENTAGONAL PRISM TUNNEL STRUCTURE, AND ITS COMBINATION WITH VARIOUS PROMOTERS [J].

INOUE, Y ;

ASAI, Y ;

SATO, K .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1994, 90 (05) :797-802

[9] PHOTOCATALYTIC ACTIVITY OF SODIUM HEXATITANATE, NA2TI6O13, WITH A TUNNEL STRUCTURE FOR DECOMPOSITION OF WATER [J].

INOUE, Y ;

KUBOKAWA, T ;

SATO, K .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1990, (19) :1298-1299

[10] Highly efficient water splitting into H2 and O2 over lanthanum-doped NaTaO3 photocatalysts with high crystallinity and surface nanostructure [J].

Kato, H ;

Asakura, K ;

Kudo, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (10) :3082-3089