Effect of impurities in TiO2 thin films on trichloroethylene conversion

Sang Eun Park; Hyunku Joo; Joon Wun Kang

doi:10.1016/j.solmat.2004.02.012

Effect of impurities in TiO₂ thin films on trichloroethylene conversion

Sang Eun Park, Hyunku Joo, Joon Wun Kang

Division of Environmental Engineering

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

34 Citations (Scopus)

Abstract

In this study, we investigate the physical properties and photocatalytic activities of TiO₂ thin films doped with low valence (Fe ³⁺, Co²⁺, and Ni²⁺) and high valence (Mo ⁵⁺, Nb⁵⁺, and W⁶⁺) cations. Clear difference in results from various analytical tools between groups was identified. The presence of different oxidation states and a higher degree of crystallinity in the high valence cation doped-TiO₂ thin films seemed beneficial in terms of the transfer and separation of photo-generated electrons and holes in the TiO₂ medium and on the surface, resulting in higher photocatalytic conversion of trichloroetylene.

Original language	English
Pages (from-to)	39-53
Number of pages	15
Journal	Solar Energy Materials and Solar Cells
Volume	83
Issue number	1
DOIs	https://doi.org/10.1016/j.solmat.2004.02.012
Publication status	Published - 2004 Jun 1

Bibliographical note

Funding Information:
This research was performed for the Hydrogen Energy R&D center, one of the 21st century Frontier R&D Programs, funded by the Ministry of Science and Technology of Korea.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

Access to Document

10.1016/j.solmat.2004.02.012

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Cite this

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title = "Effect of impurities in TiO2 thin films on trichloroethylene conversion",

abstract = "In this study, we investigate the physical properties and photocatalytic activities of TiO2 thin films doped with low valence (Fe 3+, Co2+, and Ni2+) and high valence (Mo 5+, Nb5+, and W6+) cations. Clear difference in results from various analytical tools between groups was identified. The presence of different oxidation states and a higher degree of crystallinity in the high valence cation doped-TiO2 thin films seemed beneficial in terms of the transfer and separation of photo-generated electrons and holes in the TiO2 medium and on the surface, resulting in higher photocatalytic conversion of trichloroetylene.",

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AU - Joo, Hyunku

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