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1. (WO2018023112) CONTAMINANT-ACTIVATED PHOTOCATALYSIS

Pub. No.:    WO/2018/023112    International Application No.:    PCT/US2017/044677
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Tue Aug 01 01:59:59 CEST 2017
IPC: C09D 5/16
B01J 35/00
B01J 35/02
B01J 21/06
Applicants: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
Inventors: MOUDGIL, Brij, M.
KRISHNA, Vijay
KOOPMAN, Benjamin, L.
BAI, Wei
Title: CONTAMINANT-ACTIVATED PHOTOCATALYSIS
Abstract:
A visible light photocatalyst coating includes a metal oxide that in the presence of a organic contaminate that absorbs at least some visible light or includes the metal oxide and an auxiliary visible light absorbent, where upon absorption of degradation of the organic contaminate occurs. Contaminates can be microbes, such as bacteria, viruses, or fungi. The metal oxide is nanoparticulate or microparticulate. The metal oxide can be TiO2. The coating can include an auxiliary dye having an absorbance of light in at least a portion of the visible spectrum. The coating can include a suspending agent, such as NaOH. The visible light photocatalyst coating can cover a surface of a device that is commonly handled or touched, such as a door knob, rail, or counter.