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

Huihui Li; Shu Yin; Yuhua Wang; Makoto Kobayashi; Satoko Tezuka; Masato Kakihana; Tsugio Sato

doi:10.1007/s11164-012-0894-1

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

Huihui Li, Shu Yin, Yuhua Wang, Makoto Kobayashi, Satoko Tezuka, Masato Kakihana, Tsugio Sato

IMRAM - Division of Inorganic Material Research

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

SrTiO₃ nanoparticles modified with a carboxyl group were successfully prepared by microwave-assisted solvothermal reaction of SrCl ₂·6H₂O 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 DeNO _x 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.

Original language	English
Pages (from-to)	1615-1621
Number of pages	7
Journal	Research on Chemical Intermediates
Volume	39
Issue number	4
DOIs	https://doi.org/10.1007/s11164-012-0894-1
Publication status	Published - 2013 Apr

Keywords

Carboxyl
Organic acid
Photocatalyst
SrTiO
Visible light

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title = "Effect of carboxyl group on the visible-light photocatalytic activity of SrTiO3 nanoparticles",

abstract = "SrTiO3 nanoparticles modified with a carboxyl group were successfully prepared by microwave-assisted solvothermal reaction of SrCl 2·6H2O 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 DeNO x 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.",

keywords = "Carboxyl, Organic acid, Photocatalyst, SrTiO, Visible light",

author = "Huihui Li and Shu Yin and Yuhua Wang and Makoto Kobayashi and Satoko Tezuka and Masato Kakihana and Tsugio Sato",

note = "Funding Information: Acknowledgments This research was supported in part by Management Expenses Grants for National Universities Corporations from the Ministry of Education, Culture, Sports, Science, and Technology of Japan (MEXT). The authors also thank the International Sci. & Tech. Co-operation Foundation of Gansu Provincial, China for support (Grant No. 090WCGA903).",

year = "2013",

month = apr,

doi = "10.1007/s11164-012-0894-1",

language = "English",

volume = "39",

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T1 - Effect of carboxyl group on the visible-light photocatalytic activity of SrTiO3 nanoparticles

AU - Li, Huihui

AU - Yin, Shu

AU - Wang, Yuhua

AU - Kobayashi, Makoto

AU - Tezuka, Satoko

AU - Kakihana, Masato

AU - Sato, Tsugio

N1 - Funding Information: Acknowledgments This research was supported in part by Management Expenses Grants for National Universities Corporations from the Ministry of Education, Culture, Sports, Science, and Technology of Japan (MEXT). The authors also thank the International Sci. & Tech. Co-operation Foundation of Gansu Provincial, China for support (Grant No. 090WCGA903).

PY - 2013/4

Y1 - 2013/4

N2 - SrTiO3 nanoparticles modified with a carboxyl group were successfully prepared by microwave-assisted solvothermal reaction of SrCl 2·6H2O 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 DeNO x 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.

AB - SrTiO3 nanoparticles modified with a carboxyl group were successfully prepared by microwave-assisted solvothermal reaction of SrCl 2·6H2O 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 DeNO x 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.

KW - Carboxyl

KW - Organic acid

KW - Photocatalyst

KW - SrTiO

KW - Visible light

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ER -

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

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