Effect of carboxyl group on the visible-light photocatalytic activity of SrTiO3 nanoparticles

被引：0
作者：
Huihui Li
Shu Yin
Yuhua Wang
Makoto Kobayashi
Satoko Tezuka
Masato Kakihana
Tsugio Sato
机构：
[1] Tohoku University,Institute of Multidisciplinary Research for Advanced Materials
[2] Lanzhou University,undefined
来源：
Research on Chemical Intermediates | 2013年 / 39卷
关键词：
SrTiO; Carboxyl; Visible light; Organic acid; Photocatalyst;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
SrTiO3 nanoparticles modified with a carboxyl group were successfully prepared by microwave-assisted solvothermal reaction of SrCl2·6H2O and Ti(OC3H7)4 in methanol–organic acid solution. The as-prepared products were characterized using X-ray diffraction (XRD), diffuse reflectance spectroscopy, and Fourier-transform infrared (FTIR) spectroscopy. The photocatalytic activity was determined by DeNOx ability using a mercury arc with filters to control irradiation wavelengths to >290, >400, and >510 nm. Nanoparticles of perovskite-type SrTiO3 were successfully synthesized above pH 12. The photocatalytic activity of SrTiO3 under visible-light (>510 nm) irradiation could be promoted by surface modification of SrTiO3 with the carboxyl group (–COO), especially from oleic acid.
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页码：1615 / 1621
页数：6
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