Preparation of transparent particulate MoO3/TiO2 and WO3/TiO2 films and their photocatalytic properties

Yong Song Kang Yong Song; Kyu Park Myun Kyu Park; Tae Kwon Young Tae Kwon; Woo Lee Hyun Woo Lee; Jo Chung Won Jo Chung; In Lee Wan In Lee

doi:10.1021/cm000858n

Preparation of transparent particulate MoO₃/TiO₂ and WO₃/TiO₂ films and their photocatalytic properties

Yong Song Kang Yong Song, Kyu Park Myun Kyu Park, Tae Kwon Young Tae Kwon, Woo Lee Hyun Woo Lee, Jo Chung Won Jo Chung, In Lee Wan In Lee

Inha University

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

229 Scopus citations

Abstract

By monolayer coverage of highly acidic semiconductors, such as MoO₃ and WO₃ on the surface of TiO₂ nanoparticles (Degussa P25), the stability of colloidal suspensions in aqueous solution can be greatly improved. The average diameter of agglomerated MoO₃/TiO₂ and WO₃/TiO₂ particles in aqueous suspension is only 85-110 nm, respectively, which is about one-fifth to one-fourth of that of pure TiO₂ suspension. The optically transparent photocatalytic films have been prepared with deposition of these colloidal suspensions. The colloidal particles in aqueous solution and the prepared transparent photocatalytic films were characterized with TEM, SEM, AFM, and other spectroscopic techniques. It has also been found that the photocatalytic activity of WO₃/TiO₂ film is 2.8-3 times that of pure TiO₂ film in decomposing gas-phase 2-propanol, while MoO₃/TiO₂ film is less effective.

Original language	English
Pages (from-to)	2349-2355
Number of pages	7
Journal	Chemistry of Materials
Volume	13
Issue number	7
DOIs	https://doi.org/10.1021/cm000858n
State	Published - 2001

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title = "Preparation of transparent particulate MoO3/TiO2 and WO3/TiO2 films and their photocatalytic properties",

abstract = "By monolayer coverage of highly acidic semiconductors, such as MoO3 and WO3 on the surface of TiO2 nanoparticles (Degussa P25), the stability of colloidal suspensions in aqueous solution can be greatly improved. The average diameter of agglomerated MoO3/TiO2 and WO3/TiO2 particles in aqueous suspension is only 85-110 nm, respectively, which is about one-fifth to one-fourth of that of pure TiO2 suspension. The optically transparent photocatalytic films have been prepared with deposition of these colloidal suspensions. The colloidal particles in aqueous solution and the prepared transparent photocatalytic films were characterized with TEM, SEM, AFM, and other spectroscopic techniques. It has also been found that the photocatalytic activity of WO3/TiO2 film is 2.8-3 times that of pure TiO2 film in decomposing gas-phase 2-propanol, while MoO3/TiO2 film is less effective.",

author = "{Kang Yong Song}, {Yong Song} and {Myun Kyu Park}, {Kyu Park} and {Young Tae Kwon}, {Tae Kwon} and {Hyun Woo Lee}, {Woo Lee} and {Won Jo Chung}, {Jo Chung} and {Wan In Lee}, {In Lee}",

year = "2001",

doi = "10.1021/cm000858n",

language = "English",

volume = "13",

pages = "2349--2355",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

number = "7",

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TY - JOUR

T1 - Preparation of transparent particulate MoO3/TiO2 and WO3/TiO2 films and their photocatalytic properties

AU - Kang Yong Song, Yong Song

AU - Myun Kyu Park, Kyu Park

AU - Young Tae Kwon, Tae Kwon

AU - Hyun Woo Lee, Woo Lee

AU - Won Jo Chung, Jo Chung

AU - Wan In Lee, In Lee

PY - 2001

Y1 - 2001

N2 - By monolayer coverage of highly acidic semiconductors, such as MoO3 and WO3 on the surface of TiO2 nanoparticles (Degussa P25), the stability of colloidal suspensions in aqueous solution can be greatly improved. The average diameter of agglomerated MoO3/TiO2 and WO3/TiO2 particles in aqueous suspension is only 85-110 nm, respectively, which is about one-fifth to one-fourth of that of pure TiO2 suspension. The optically transparent photocatalytic films have been prepared with deposition of these colloidal suspensions. The colloidal particles in aqueous solution and the prepared transparent photocatalytic films were characterized with TEM, SEM, AFM, and other spectroscopic techniques. It has also been found that the photocatalytic activity of WO3/TiO2 film is 2.8-3 times that of pure TiO2 film in decomposing gas-phase 2-propanol, while MoO3/TiO2 film is less effective.

AB - By monolayer coverage of highly acidic semiconductors, such as MoO3 and WO3 on the surface of TiO2 nanoparticles (Degussa P25), the stability of colloidal suspensions in aqueous solution can be greatly improved. The average diameter of agglomerated MoO3/TiO2 and WO3/TiO2 particles in aqueous suspension is only 85-110 nm, respectively, which is about one-fifth to one-fourth of that of pure TiO2 suspension. The optically transparent photocatalytic films have been prepared with deposition of these colloidal suspensions. The colloidal particles in aqueous solution and the prepared transparent photocatalytic films were characterized with TEM, SEM, AFM, and other spectroscopic techniques. It has also been found that the photocatalytic activity of WO3/TiO2 film is 2.8-3 times that of pure TiO2 film in decomposing gas-phase 2-propanol, while MoO3/TiO2 film is less effective.

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U2 - 10.1021/cm000858n

DO - 10.1021/cm000858n

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VL - 13

SP - 2349

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JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 7

ER -

Preparation of transparent particulate MoO₃/TiO₂ and WO₃/TiO₂ films and their photocatalytic properties

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