Correlation between multiple growth stages and photocatalysis of SrTiO3 nanocrystals

Zhan, Hongquan, Chen, Zhi-Gang, Zhuang, Jianle, Yang, Xianfeng, Wu, Qili, Jiang, Xiangping, Liang, Chaolun, Wu, Mingmei and Zou, Jin (2015) Correlation between multiple growth stages and photocatalysis of SrTiO3 nanocrystals. Journal of Physical Chemistry C, 119 7: 3530-3537. doi:10.1021/jp512448p


Author Zhan, Hongquan
Chen, Zhi-Gang
Zhuang, Jianle
Yang, Xianfeng
Wu, Qili
Jiang, Xiangping
Liang, Chaolun
Wu, Mingmei
Zou, Jin
Title Correlation between multiple growth stages and photocatalysis of SrTiO3 nanocrystals
Formatted title
Correlation between multiple growth stages and photocatalysis of SrTiO3 nanocrystals
Journal name Journal of Physical Chemistry C   Check publisher's open access policy
ISSN 1932-7455
1932-7447
Publication date 2015-02-19
Year available 2015
Sub-type Article (original research)
DOI 10.1021/jp512448p
Open Access Status Not Open Access
Volume 119
Issue 7
Start page 3530
End page 3537
Total pages 8
Place of publication Washington, DC United States
Publisher American Chemical Society
Language eng
Formatted abstract
The relationship between growth kinetic and photocatalysis of SrTiO3 nanoparticles is investigated by close correlation of their growth behaviors under the different stages. The detailed structural characterizations show that SrTiO3 crystal growth does not follow the classic route. A new growth mechanism, including the first formation of SrTiO3 mesoporous sphere followed by the single crystal growth via oriented attachment, size shrinking, and Ostwald ripening, is proposed. The photocatalytic ability of the as-grown SrTiO3 products at different growth stages, checked by the degradation of methyl orange, shows different properties. The results indicate that the size, morphology, and defects of the resultant SrTiO3 products, tailored during the different growth stages, were highly responsible for the photocatalytic activity. Especially, the semicrystalline SrTiO3 mesoporous spheres produced by oriented attachment at the initial stage show the highest photocatalytic ability.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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