Fe-decorated TiO2 powder photocatalysts with enhanced visible-light-driven degradation activities

Heon Lee; Young Kwon Park; Sun Jae Kim; Byung Hoon Kim; Sang Chul Jung

doi:10.1016/j.surfcoat.2016.08.033

Fe-decorated TiO₂ powder photocatalysts with enhanced visible-light-driven degradation activities

Heon Lee, Young Kwon Park, Sun Jae Kim, Byung Hoon Kim, Sang Chul Jung

School of Environmental Engineering

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

12 Scopus citations

Abstract

The liquid phase plasma (LPP) synthetic process was exploited to synthesize an iron oxide doped TiO₂ photocatalyst (IOTP) that is sensitive to visible light. This IOTP was tested for photoactivation using ultraviolet and visible light exposure. The physical and chemical properties of the prepared IOTP powders were studied by various analysis instruments (UV–Vis spectroscopy, FESEM, HR-FETEM, HR-XPS). The band gap energy of the IOTP was found to be 2.93 eV, which was smaller than that of the bare TiO₂, 3.18 eV. The IOTP synthesized in this work showed photoactivity under visible blue light. However, its photoactivity was lower than that of the bare TiO₂ powder under UV light because the iron oxide precipitate acted as crystal defects, deteriorating the catalytic activity.

Original language	English
Pages (from-to)	1018-1023
Number of pages	6
Journal	Surface and Coatings Technology
Volume	307
DOIs	https://doi.org/10.1016/j.surfcoat.2016.08.033
State	Published - 15 Dec 2016

Keywords

Band gap energy
Iron oxide particle
Liquid phase plasma
Photocatalytic activity
TiO

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10.1016/j.surfcoat.2016.08.033

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title = "Fe-decorated TiO2 powder photocatalysts with enhanced visible-light-driven degradation activities",

abstract = "The liquid phase plasma (LPP) synthetic process was exploited to synthesize an iron oxide doped TiO2 photocatalyst (IOTP) that is sensitive to visible light. This IOTP was tested for photoactivation using ultraviolet and visible light exposure. The physical and chemical properties of the prepared IOTP powders were studied by various analysis instruments (UV–Vis spectroscopy, FESEM, HR-FETEM, HR-XPS). The band gap energy of the IOTP was found to be 2.93 eV, which was smaller than that of the bare TiO2, 3.18 eV. The IOTP synthesized in this work showed photoactivity under visible blue light. However, its photoactivity was lower than that of the bare TiO2 powder under UV light because the iron oxide precipitate acted as crystal defects, deteriorating the catalytic activity.",

keywords = "Band gap energy, Iron oxide particle, Liquid phase plasma, Photocatalytic activity, TiO",

author = "Heon Lee and Park, {Young Kwon} and Kim, {Sun Jae} and Kim, {Byung Hoon} and Jung, {Sang Chul}",

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T1 - Fe-decorated TiO2 powder photocatalysts with enhanced visible-light-driven degradation activities

AU - Lee, Heon

AU - Park, Young Kwon

AU - Kim, Sun Jae

AU - Kim, Byung Hoon

AU - Jung, Sang Chul

PY - 2016/12/15

Y1 - 2016/12/15

N2 - The liquid phase plasma (LPP) synthetic process was exploited to synthesize an iron oxide doped TiO2 photocatalyst (IOTP) that is sensitive to visible light. This IOTP was tested for photoactivation using ultraviolet and visible light exposure. The physical and chemical properties of the prepared IOTP powders were studied by various analysis instruments (UV–Vis spectroscopy, FESEM, HR-FETEM, HR-XPS). The band gap energy of the IOTP was found to be 2.93 eV, which was smaller than that of the bare TiO2, 3.18 eV. The IOTP synthesized in this work showed photoactivity under visible blue light. However, its photoactivity was lower than that of the bare TiO2 powder under UV light because the iron oxide precipitate acted as crystal defects, deteriorating the catalytic activity.

AB - The liquid phase plasma (LPP) synthetic process was exploited to synthesize an iron oxide doped TiO2 photocatalyst (IOTP) that is sensitive to visible light. This IOTP was tested for photoactivation using ultraviolet and visible light exposure. The physical and chemical properties of the prepared IOTP powders were studied by various analysis instruments (UV–Vis spectroscopy, FESEM, HR-FETEM, HR-XPS). The band gap energy of the IOTP was found to be 2.93 eV, which was smaller than that of the bare TiO2, 3.18 eV. The IOTP synthesized in this work showed photoactivity under visible blue light. However, its photoactivity was lower than that of the bare TiO2 powder under UV light because the iron oxide precipitate acted as crystal defects, deteriorating the catalytic activity.

KW - Band gap energy

KW - Iron oxide particle

KW - Liquid phase plasma

KW - Photocatalytic activity

KW - TiO

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DO - 10.1016/j.surfcoat.2016.08.033

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SN - 0257-8972

VL - 307

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EP - 1023

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -

Fe-decorated TiO₂ powder photocatalysts with enhanced visible-light-driven degradation activities

Abstract

Keywords

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