PHOTOCATALYST FOR WATER PURIFICATION, PHOTOCATALYST UNIT FOR WATER PURIFICATION, AND PHOTOCATALYST WATER PURIFICATION DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To suppress a decrease in photocatalyst activity by suppressing leaving of fluorine from fluorine-containing titanium oxide in water by a photocatalyst unit for water purification using the fluorine-containing titanium oxide and a photocatalyst water purification device using the same.

SOLUTION: There is provided a photocatalyst water purification device 301 in which a photocatalyst unit 303 for water purification characterized in that the photocatalyst is titanium oxide containing fluorine and an inorganic solid acid catalyst is in contact with the photocatalyst is equipped with an acid supply unit 308 and a fluoride ion concentration meter 307.

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