Photocatalytic hydrogen production in water-methanol mixture over iron-doped CaTiO3

J. S. Jang; P. H. Borse; J. S. Lee; K. T. Lim; O. S. Jung; E. D. Jeong; J. S. Bae; H. G. Kim

doi:10.5012/bkcs.2011.32.1.95

Photocatalytic hydrogen production in water-methanol mixture over iron-doped CaTiO₃

J. S. Jang
, P. H. Borse
, J. S. Lee
, K. T. Lim
, O. S. Jung
, E. D. Jeong
, J. S. Bae
, H. G. Kim

Environmental Biotechnology

Pohang University of Science and Technology
International Advanced Research Centre for Powder Metallurgy and New Materials, Hyderabad
Pukyong National University
Pusan National University
Korea Basic Science Institute

Research output: Contribution to journal › Journal article › peer-review

45 Scopus citations

Abstract

CaTi_1-xFe_xO₃ (0 ≤ x ≤ 0.4) solid solution photocatalysts were synthesized by iron doping during the conventional solid state reaction at 1100 °C for 5 h and characterized by ultraviolet-visible (UV-vis) absorption spectroscopy, X-ray diffraction, morphological analysis. We found that CaTi_1-xFe_xO ₃ samples not only absorb UV but also the visible light photons. This is because the Fe substitution at Ti-site in CaTi_1-xFe _xO₃ lattice induces the band transition from Fe3d to the Fe3d + Ti3d hybrid orbital. The photocatalytic activity of Fe doped CaTiO ₃ samples for hydrogen production under UV light irradiation decreased with the increase in the Fe concentration. There exists an optimized concentration of iron in CaTiO₃, which yields a maximum photocatalytic activity under visible light (λ ≥ 420 nm) photons.

Original language	English
Pages (from-to)	95-99
Number of pages	5
Journal	Bulletin of the Korean Chemical Society
Volume	32
Issue number	1
DOIs	https://doi.org/10.5012/bkcs.2011.32.1.95
State	Published - 2011.01.20

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Fe doped CaTiO
Hydrogen production
Photocatalysis
Solid state reaction
Visible light

Access to Document

10.5012/bkcs.2011.32.1.95

Cite this

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title = "Photocatalytic hydrogen production in water-methanol mixture over iron-doped CaTiO3",

abstract = "CaTi1-xFexO3 (0 ≤ x ≤ 0.4) solid solution photocatalysts were synthesized by iron doping during the conventional solid state reaction at 1100 °C for 5 h and characterized by ultraviolet-visible (UV-vis) absorption spectroscopy, X-ray diffraction, morphological analysis. We found that CaTi1-xFexO 3 samples not only absorb UV but also the visible light photons. This is because the Fe substitution at Ti-site in CaTi1-xFe xO3 lattice induces the band transition from Fe3d to the Fe3d + Ti3d hybrid orbital. The photocatalytic activity of Fe doped CaTiO 3 samples for hydrogen production under UV light irradiation decreased with the increase in the Fe concentration. There exists an optimized concentration of iron in CaTiO3, which yields a maximum photocatalytic activity under visible light (λ ≥ 420 nm) photons.",

keywords = "Fe doped CaTiO, Hydrogen production, Photocatalysis, Solid state reaction, Visible light",

author = "Jang, \{J. S.\} and Borse, \{P. H.\} and Lee, \{J. S.\} and Lim, \{K. T.\} and Jung, \{O. S.\} and Jeong, \{E. D.\} and Bae, \{J. S.\} and Kim, \{H. G.\}",

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T1 - Photocatalytic hydrogen production in water-methanol mixture over iron-doped CaTiO3

AU - Jang, J. S.

AU - Borse, P. H.

AU - Lee, J. S.

AU - Lim, K. T.

AU - Jung, O. S.

AU - Jeong, E. D.

AU - Bae, J. S.

AU - Kim, H. G.

PY - 2011/1/20

Y1 - 2011/1/20

N2 - CaTi1-xFexO3 (0 ≤ x ≤ 0.4) solid solution photocatalysts were synthesized by iron doping during the conventional solid state reaction at 1100 °C for 5 h and characterized by ultraviolet-visible (UV-vis) absorption spectroscopy, X-ray diffraction, morphological analysis. We found that CaTi1-xFexO 3 samples not only absorb UV but also the visible light photons. This is because the Fe substitution at Ti-site in CaTi1-xFe xO3 lattice induces the band transition from Fe3d to the Fe3d + Ti3d hybrid orbital. The photocatalytic activity of Fe doped CaTiO 3 samples for hydrogen production under UV light irradiation decreased with the increase in the Fe concentration. There exists an optimized concentration of iron in CaTiO3, which yields a maximum photocatalytic activity under visible light (λ ≥ 420 nm) photons.

AB - CaTi1-xFexO3 (0 ≤ x ≤ 0.4) solid solution photocatalysts were synthesized by iron doping during the conventional solid state reaction at 1100 °C for 5 h and characterized by ultraviolet-visible (UV-vis) absorption spectroscopy, X-ray diffraction, morphological analysis. We found that CaTi1-xFexO 3 samples not only absorb UV but also the visible light photons. This is because the Fe substitution at Ti-site in CaTi1-xFe xO3 lattice induces the band transition from Fe3d to the Fe3d + Ti3d hybrid orbital. The photocatalytic activity of Fe doped CaTiO 3 samples for hydrogen production under UV light irradiation decreased with the increase in the Fe concentration. There exists an optimized concentration of iron in CaTiO3, which yields a maximum photocatalytic activity under visible light (λ ≥ 420 nm) photons.

KW - Fe doped CaTiO

KW - Hydrogen production

KW - Photocatalysis

KW - Solid state reaction

KW - Visible light

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VL - 32

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JO - Bulletin of the Korean Chemical Society

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