A facile in-situ hydrothermal synthesis of SrTiO3/TiO2 microsphere composite

被引：9

作者：

Wang, Hongxing ^{[1
]}

Zhao, Wei ^{[1
]}

Zhang, Yubo ^{[1
]}

Zhang, Shimeng ^{[1
]}

Wang, Zihao ^{[1
]}

Zhao, Dan ^{[1
]}

机构：

[1] Tianjin Chengjian Univ, Sch Mat Sci & Engn, Jinjing Rd 26, Tianjin 300384, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2016年 / 236卷

基金：

中国国家自然科学基金;

关键词：

Mechanism; Composite; SrTiO3/TiO2; In-situ Hydrothermal;

D O I：

10.1016/j.ssc.2016.03.003

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

TiO2 was successfully used as sacrificed template to synthesise SrTiO3/TiO2 microsphere composite via an in-situ hydrothermal process. The diameter of SrTiO3/TiO2 microsphere was about 700 nm with the same size of the template, and all of the microspheres were in good dispersity. The optimized reaction parameters for the phase and morphology of the as-synthesized samples were investigated. The results showed the SrTiO3/TiO2 microsphere can be synthesized at 170 degrees C when the concentration of sodium hydroxide was 0.1 M. Lower hydrothermal temperature hampered the formation of the SrTiO3/TiO2 composite, the higher alkali concentration, however, will destroy the morphology of products. The formation mechanism of SrTiO3/TiO2 microsphere composite was proposed and the photocatalytic properties of the samples were characterized using methylene blue solution as the pollutant under the UV light irradiation. The results indicated the proper OH- concentration will provide a channel for Sr2+ to react with located in the template and form the SrTiO3/TiO2 composite, and those with micro-scaled spherical morphology exhibited good photocatalytic activities. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：27 / 31

页数：5

共 21 条

[1] Anaraki H.S., 2014, J SEMICOND, V48, P5
[2] Bai H., 2012, J APPL CATAL B, V125, P67
[3] Cai J., 2015, J AM CERAL SOC CATAL, V5, P8
[4] Du Y., 2015, J AM CERAM SOC APPL, V7, P09
[5] Enchin S., 2015, J MATER SCI, V50, P73
[6] Enyan G., 2015, J MATER CHEM A, V3, P390
[7] Optical Study of Tetragonal Domains in LaAlO3/SrTiO3
Erlich, Z.
Frenkel, Y.
Drori, J.
Shperber, Y.
Bell, C.
Sato, H. K.
Hosoda, M.
Xie, Y.
Hikita, Y.
Hwang, H. Y.
Kalisky, B.
[J]. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2015, 28 (03) : 1017 - 1020
[8] JI L, 2015, J NAT NANOTECHNOL, V10, P84, DOI DOI 10.1038/NNANO.2014.277
[9] Jiahong P., 2015, J AM CERAM SOC APPL, V7, P59
[10] Kang Q., 2015, J ANGEW CHEM, V127, P5

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