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Research Article | Open Access

Low temperature hydrothermal synthesis of SrTiO3 nanoparticles without alkali and their effective photocatalytic activity

Hongfang SHENa,b, Youjun LUb, Yanmin WANGa( ), Zhidong PANa, Guozhong CAOc, Xianghui YANb, Guoli FANGb
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
School of Materials Science and Engineering, Beifang University of Nationalities, Yinchuan 750021, China
Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
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Abstract

SrTiO3 nanoparticle (NP) photocatalyst was synthesized with a facile and environmental-friendly hydrothermal method using tetrabutyltitanate, strontium oxide, and ethanolamine as precursors at low temperature without alkali as mineralizer for the first time. The SrTiO3 nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), and N2 Brunauer–Emmett–Teller (BET) method. The SrTiO3 catalyst synthesized at 120 ℃ (STO-120) exhibited the highest photocurrent intensity among the samples synthesized at different hydrothermal temperatures. The high photocatalytic performance of STO-120 was mainly attributed to the more homogeneous and minimum nanoparticle size, the highest surface area, and the maximum light absorption property among the four different samples. This work presented an applicable and facile method to fabricate a highly active and stable SrTiO3 photocatalyst for organic pollutant degradation.

Keywords

polyhedral SrTiO3hydrothermal synthesislow temperaturephotocurrent propertyphotocatalytic activitystability

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Journal of Advanced Ceramics
Volume 5 Issue 4,
December 2016
Pages 298-307
DOI: 10.1007/s40145-016-0203-3
Cite this article:
SHEN H, LU Y, WANG Y, et al. Low temperature hydrothermal synthesis of SrTiO3 nanoparticles without alkali and their effective photocatalytic activity. Journal of Advanced Ceramics, 2016, 5(4): 298-307. https://doi.org/10.1007/s40145-016-0203-3

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Received: 29 July 2016
Revised: 09 August 2016
Accepted: 13 August 2016
Published: 23 December 2016
© The author(s) 2016

Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons. org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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