Visible light photocatalytic activity induced by the carboxyl group chemically bonded on the surface of SrTiO3

Uyi Sulaeman; Shu Yin; Tsugio Sato

doi:10.1016/j.apcatb.2010.12.013

Visible light photocatalytic activity induced by the carboxyl group chemically bonded on the surface of SrTiO₃

Uyi Sulaeman, Shu Yin, Tsugio Sato

Center for Exploration of New Inorganic Materials

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

35 Citations (Scopus)

Abstract

Strontium titanate nanoparticles were synthesized by a microwave-assisted solvothermal reaction of SrCl₂·6H₂O, Ti(OC₃H₇)₄ in KOH methanol-oleic acid solution. The products were characterized by TG-DTA, XRD, TEM, BET surface area and XPS. The photocatalytic activity was determined by DeNO_x ability using LED lamps with various wavelengths such as 627nm (red), 530nm (green), 445nm (blue) and 390nm (UV). The nanoparticles of perovskite type SrTiO₃ with the particle size of 15-18nm were successfully synthesized. The photocatalytic activity of SrTiO₃ under visible light (λ=530nm) irradiation could be generated by modification of the surface with the carboxyl group (-COO) from oleic acid which enabled the absorption of visible light.

Original language	English
Pages (from-to)	286-290
Number of pages	5
Journal	Applied Catalysis B: Environmental
Volume	102
Issue number	1-2
DOIs	https://doi.org/10.1016/j.apcatb.2010.12.013
Publication status	Published - 2011 Feb 1

Keywords

Carboxyl
Dipole layer
Nb doping
Photocatalyst
SrTiO
Visible light

ASJC Scopus subject areas

Catalysis
Environmental Science(all)
Process Chemistry and Technology

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title = "Visible light photocatalytic activity induced by the carboxyl group chemically bonded on the surface of SrTiO3",

abstract = "Strontium titanate nanoparticles were synthesized by a microwave-assisted solvothermal reaction of SrCl2·6H2O, Ti(OC3H7)4 in KOH methanol-oleic acid solution. The products were characterized by TG-DTA, XRD, TEM, BET surface area and XPS. The photocatalytic activity was determined by DeNOx ability using LED lamps with various wavelengths such as 627nm (red), 530nm (green), 445nm (blue) and 390nm (UV). The nanoparticles of perovskite type SrTiO3 with the particle size of 15-18nm were successfully synthesized. The photocatalytic activity of SrTiO3 under visible light (λ=530nm) irradiation could be generated by modification of the surface with the carboxyl group (-COO) from oleic acid which enabled the absorption of visible light.",

keywords = "Carboxyl, Dipole layer, Nb doping, Photocatalyst, SrTiO, Visible light",

author = "Uyi Sulaeman and Shu Yin and Tsugio Sato",

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T1 - Visible light photocatalytic activity induced by the carboxyl group chemically bonded on the surface of SrTiO3

AU - Sulaeman, Uyi

AU - Yin, Shu

AU - Sato, Tsugio

PY - 2011/2/1

Y1 - 2011/2/1

N2 - Strontium titanate nanoparticles were synthesized by a microwave-assisted solvothermal reaction of SrCl2·6H2O, Ti(OC3H7)4 in KOH methanol-oleic acid solution. The products were characterized by TG-DTA, XRD, TEM, BET surface area and XPS. The photocatalytic activity was determined by DeNOx ability using LED lamps with various wavelengths such as 627nm (red), 530nm (green), 445nm (blue) and 390nm (UV). The nanoparticles of perovskite type SrTiO3 with the particle size of 15-18nm were successfully synthesized. The photocatalytic activity of SrTiO3 under visible light (λ=530nm) irradiation could be generated by modification of the surface with the carboxyl group (-COO) from oleic acid which enabled the absorption of visible light.

AB - Strontium titanate nanoparticles were synthesized by a microwave-assisted solvothermal reaction of SrCl2·6H2O, Ti(OC3H7)4 in KOH methanol-oleic acid solution. The products were characterized by TG-DTA, XRD, TEM, BET surface area and XPS. The photocatalytic activity was determined by DeNOx ability using LED lamps with various wavelengths such as 627nm (red), 530nm (green), 445nm (blue) and 390nm (UV). The nanoparticles of perovskite type SrTiO3 with the particle size of 15-18nm were successfully synthesized. The photocatalytic activity of SrTiO3 under visible light (λ=530nm) irradiation could be generated by modification of the surface with the carboxyl group (-COO) from oleic acid which enabled the absorption of visible light.

KW - Carboxyl

KW - Dipole layer

KW - Nb doping

KW - Photocatalyst

KW - SrTiO

KW - Visible light

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