Photocatalytic Activity of Metal Ion (Fe or W) Doped Titania

Sang Soo Lee; Hyun Jong Kim; Kyung Taek Jung; Hak Soo Kim; Yong Gun Shul

doi:10.1007/BF02705618

Photocatalytic Activity of Metal Ion (Fe or W) Doped Titania

Sang Soo Lee, Hyun Jong Kim, Kyung Taek Jung, Hak Soo Kim, Yong Gun Shul

Department of Chemical and Biomolecular Engineering

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

13 Citations (Scopus)

Abstract

Iron or tungsten-doped nano TiO₂ were successfully synthesized from TiCl₄. All of the samples showed anatase phase of TiO₂. For the iron-doped TiO₂, Iron ion was well dispersed in the TiO₂ lattice. However, tungstendoped TiO₂ formed 12-tungstate with anatase TiO₂. As the concentration of tungsten increased, 12-tungstate disappeared. The photocatalytic oxidation of acetaldehyde was evaluated to examine the photocatalytic characteristics of metal-doped TiO₂. Because of the surface containing metal oxide or metal precursors at high concentration metal ion, increasing the concentration of W or Fe ion decreased the reactivity. The reaction rate was drastically increased after 300°C heat treatment. Furthermore, the photocatalytic activity of iron- or tungsten-doped TiO₂ was higher than that of synthesized pure TiO₂ and commercial TiO₂.

Original language	English
Pages (from-to)	914-918
Number of pages	5
Journal	Korean Journal of Chemical Engineering
Volume	18
Issue number	6
DOIs	https://doi.org/10.1007/BF02705618
Publication status	Published - 2001 Nov

Bibliographical note

Funding Information:
This work was supported by the Brain Korea 21 Project, and Korean Institute of Environmental Science and "Iechnology,

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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10.1007/BF02705618

Cite this

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title = "Photocatalytic Activity of Metal Ion (Fe or W) Doped Titania",

abstract = "Iron or tungsten-doped nano TiO2 were successfully synthesized from TiCl4. All of the samples showed anatase phase of TiO2. For the iron-doped TiO2, Iron ion was well dispersed in the TiO2 lattice. However, tungstendoped TiO2 formed 12-tungstate with anatase TiO2. As the concentration of tungsten increased, 12-tungstate disappeared. The photocatalytic oxidation of acetaldehyde was evaluated to examine the photocatalytic characteristics of metal-doped TiO2. Because of the surface containing metal oxide or metal precursors at high concentration metal ion, increasing the concentration of W or Fe ion decreased the reactivity. The reaction rate was drastically increased after 300°C heat treatment. Furthermore, the photocatalytic activity of iron- or tungsten-doped TiO2 was higher than that of synthesized pure TiO2 and commercial TiO2.",

author = "Lee, {Sang Soo} and Kim, {Hyun Jong} and Jung, {Kyung Taek} and Kim, {Hak Soo} and Shul, {Yong Gun}",

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T1 - Photocatalytic Activity of Metal Ion (Fe or W) Doped Titania

AU - Lee, Sang Soo

AU - Kim, Hyun Jong

AU - Jung, Kyung Taek

AU - Kim, Hak Soo

AU - Shul, Yong Gun

N1 - Funding Information: This work was supported by the Brain Korea 21 Project, and Korean Institute of Environmental Science and "Iechnology,

PY - 2001/11

Y1 - 2001/11

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AB - Iron or tungsten-doped nano TiO2 were successfully synthesized from TiCl4. All of the samples showed anatase phase of TiO2. For the iron-doped TiO2, Iron ion was well dispersed in the TiO2 lattice. However, tungstendoped TiO2 formed 12-tungstate with anatase TiO2. As the concentration of tungsten increased, 12-tungstate disappeared. The photocatalytic oxidation of acetaldehyde was evaluated to examine the photocatalytic characteristics of metal-doped TiO2. Because of the surface containing metal oxide or metal precursors at high concentration metal ion, increasing the concentration of W or Fe ion decreased the reactivity. The reaction rate was drastically increased after 300°C heat treatment. Furthermore, the photocatalytic activity of iron- or tungsten-doped TiO2 was higher than that of synthesized pure TiO2 and commercial TiO2.

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Photocatalytic Activity of Metal Ion (Fe or W) Doped Titania

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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