Synthesis and crystal structure of a new bismuth tin titanate with the pyrochlore-type structure

被引：1

作者：

Saiduzzaman, Md ^{[1
]}

Wani, Shuto ^{[1
]}

Takei, Takahiro ^{[1
]}

Yanagida, Sayaka ^{[1
]}

Kumada, Nobuhiro ^{[1
]}

Fujii, Ichiro ^{[2
]}

Wada, Satoshi ^{[2
]}

Moriyoshi, Chikako ^{[3
]}

Kuroiwa, Yoshihiro ^{[3
]}

机构：

[1] Univ Yamanashi, Ctr Crystal Sci & Technol, 7-32 Miyamae Cho, Kofu, Yamanashi 4008511, Japan

[2] Univ Yamanashi, Grad Fac Interdisciplinary Res, 4-4-37 Takeda, Kofu, Yamanashi 4008510, Japan

[3] Hiroshima Univ, Dept Phys Sci, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 7398526, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2019年 / 127卷 / 12期

关键词：

Bismuth tin titanate; Pyrochlore; Crystal structure; METHYLENE-BLUE; PHASE; OXIDES;

D O I：

10.2109/jcersj2.19093

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A pyrochlore-type compound, Sn0.34Bi1.52Ti1.86Sn0.14O6.62 was synthesized using a solid-state reaction in a N-2 atmosphere. The crystal structure was refined using the synchrotron powder X-ray diffraction data. This compound comprised mixed-valence states Sn2+ and Sn4+. The morphology of this compound was irregular shapes with particle size approximately 1-5 mu M. The band gap of this compound was estimated to be 2.83 eV from the ultraviolet-visible spectrum. The dielectric constant of this compound was 78 under 100 Hz frequency and weak photocatalytic activity for methylene blue degradation under visible light irradiation. (C) 2019 The Ceramic Society of Japan. All rights reserved.

引用

页码：952 / 957

页数：6

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