Process for producing dispersion of copper ion-modified tungsten oxide photocatalyst

The present invention relates to a process for producing a dispersion of a copper ion-modified tungsten oxide photocatalyst, including the steps of subjecting copper ion-modified tungsten oxide particles to mechanical pulverization treatment in a solvent and then contacting the resulting dispersion...

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Bibliographic Details
Main Author HOSOGI, YASUHIRO
Format Patent
LanguageChinese
English
Published 01.05.2012
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:The present invention relates to a process for producing a dispersion of a copper ion-modified tungsten oxide photocatalyst, including the steps of subjecting copper ion-modified tungsten oxide particles to mechanical pulverization treatment in a solvent and then contacting the resulting dispersion of the pulverized particles with an oxygen gas or ozone; and a copper ion-modified tungsten oxide photocatalyst which is produced by subjecting copper ion-modified tungsten oxide particles to mechanical pulverization treatment in a solvent and then contacting the resulting dispersion of the pulverized particles with an oxidative gas, wherein a photocatalyst powder obtained by drying the dispersion after being contacted with the oxidative gas exhibits a diffuse reflectance of 75% or more as measured at a wavelength of 700 nm.
Bibliography:Application Number: TW20110124205