Solvothermal synthesis of WO3 photocatalysts and their enhanced activity

Yuji Kondo; Shinobu Fujihara

doi:10.4028/www.scientific.net/KEM.485.283

Solvothermal synthesis of WO₃ photocatalysts and their enhanced activity

Yuji Kondo, Shinobu Fujihara

Department of Applied Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Tungsten trioxide (WO₃) is known as a visible light responsive photocatalyst, but its photocatalytic activity is relatively low, as compared to that of anatase titanium dioxide (TiO₂). To enhance the activity, high specific surface areas are necessary. In this study, WO₃ particles with a hierarchical architecture, which was assemblies of spherical particles 20 - 30 nm in diameter, were synthesized by the solvothermal method. The hierarchical WO₃ particles had high specific surface areas and their photocatalytic activity was found to be 2.5 times higher than that of the commercial WO₃.

Original language	English
Title of host publication	Electroceramics in Japan XIV
Publisher	Trans Tech Publications Ltd
Pages	283-286
Number of pages	4
ISBN (Print)	9783037851821
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.485.283
Publication status	Published - 2011

Publication series

Name	Key Engineering Materials
Volume	485
ISSN (Print)	1013-9826
ISSN (Electronic)	1662-9795

Keywords

Morphology control
Photocatalyst
Solvothermal synthesis
Tungsten trioxide

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.4028/www.scientific.net/KEM.485.283

Cite this

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title = "Solvothermal synthesis of WO3 photocatalysts and their enhanced activity",

abstract = "Tungsten trioxide (WO3) is known as a visible light responsive photocatalyst, but its photocatalytic activity is relatively low, as compared to that of anatase titanium dioxide (TiO2). To enhance the activity, high specific surface areas are necessary. In this study, WO3 particles with a hierarchical architecture, which was assemblies of spherical particles 20 - 30 nm in diameter, were synthesized by the solvothermal method. The hierarchical WO3 particles had high specific surface areas and their photocatalytic activity was found to be 2.5 times higher than that of the commercial WO3.",

keywords = "Morphology control, Photocatalyst, Solvothermal synthesis, Tungsten trioxide",

author = "Yuji Kondo and Shinobu Fujihara",

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language = "English",

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AU - Fujihara, Shinobu

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N2 - Tungsten trioxide (WO3) is known as a visible light responsive photocatalyst, but its photocatalytic activity is relatively low, as compared to that of anatase titanium dioxide (TiO2). To enhance the activity, high specific surface areas are necessary. In this study, WO3 particles with a hierarchical architecture, which was assemblies of spherical particles 20 - 30 nm in diameter, were synthesized by the solvothermal method. The hierarchical WO3 particles had high specific surface areas and their photocatalytic activity was found to be 2.5 times higher than that of the commercial WO3.

AB - Tungsten trioxide (WO3) is known as a visible light responsive photocatalyst, but its photocatalytic activity is relatively low, as compared to that of anatase titanium dioxide (TiO2). To enhance the activity, high specific surface areas are necessary. In this study, WO3 particles with a hierarchical architecture, which was assemblies of spherical particles 20 - 30 nm in diameter, were synthesized by the solvothermal method. The hierarchical WO3 particles had high specific surface areas and their photocatalytic activity was found to be 2.5 times higher than that of the commercial WO3.

KW - Morphology control

KW - Photocatalyst

KW - Solvothermal synthesis

KW - Tungsten trioxide

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