Heterojunction of FeOOH and TiO2 for the formation of visible light photocatalyst

Sher Bahadur Rawal; Ashok Kumar Chakraborty; Wan In Lee

doi:10.5012/bkcs.2009.30.11.2613

Heterojunction of FeOOH and TiO₂ for the formation of visible light photocatalyst

Sher Bahadur Rawal, Ashok Kumar Chakraborty, Wan In Lee

Inha University

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

39 Scopus citations

Abstract

FeOOH/TiO₂, a heterojunction structure between FeOOH and TiO₂, was prepared by covering the surface of the ~100-nm-sized FeOOH particles with Degussa P25 by applying maleic acid as an organic linker. Under visible light irradiation (λ ≥ 420 nm), FeOOH/TiO₂ showed a notable photocatalytic activity in removal of gaseous 2-propanol and evolution of CO₂. It was found that FeOOH reveals a profound absorption in the spectral range of 400 - 550 nm, and its valence band (VB) level is located relatively lower than that of TiO₂. The considerable photocatalytic efficiency of the FeOOH/TiO₂ under visible light irradiation was therefore deduced to be caused by the hole transfer between the VB of FeOOH and TiO₂.

Original language	English
Pages (from-to)	2613-2616
Number of pages	4
Journal	Bulletin of the Korean Chemical Society
Volume	30
Issue number	11
DOIs	https://doi.org/10.5012/bkcs.2009.30.11.2613
State	Published - Nov 2009

Keywords

FeOOH
FeOOH/TiO
Heterojunction
Photocatalyst
Visible light

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10.5012/bkcs.2009.30.11.2613

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title = "Heterojunction of FeOOH and TiO2 for the formation of visible light photocatalyst",

abstract = "FeOOH/TiO2, a heterojunction structure between FeOOH and TiO2, was prepared by covering the surface of the ~100-nm-sized FeOOH particles with Degussa P25 by applying maleic acid as an organic linker. Under visible light irradiation (λ ≥ 420 nm), FeOOH/TiO2 showed a notable photocatalytic activity in removal of gaseous 2-propanol and evolution of CO2. It was found that FeOOH reveals a profound absorption in the spectral range of 400 - 550 nm, and its valence band (VB) level is located relatively lower than that of TiO2. The considerable photocatalytic efficiency of the FeOOH/TiO2 under visible light irradiation was therefore deduced to be caused by the hole transfer between the VB of FeOOH and TiO2.",

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AB - FeOOH/TiO2, a heterojunction structure between FeOOH and TiO2, was prepared by covering the surface of the ~100-nm-sized FeOOH particles with Degussa P25 by applying maleic acid as an organic linker. Under visible light irradiation (λ ≥ 420 nm), FeOOH/TiO2 showed a notable photocatalytic activity in removal of gaseous 2-propanol and evolution of CO2. It was found that FeOOH reveals a profound absorption in the spectral range of 400 - 550 nm, and its valence band (VB) level is located relatively lower than that of TiO2. The considerable photocatalytic efficiency of the FeOOH/TiO2 under visible light irradiation was therefore deduced to be caused by the hole transfer between the VB of FeOOH and TiO2.

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Heterojunction of FeOOH and TiO₂ for the formation of visible light photocatalyst

Abstract

Keywords

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