Photocatalyst material, method for decomposition of organic...

B - Operations – Transporting – 01 – J

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B01J 35/02 (2006.01) A61L 9/00 (2006.01) A61L 9/01 (2006.01) B01J 23/85 (2006.01)

Patent

CA 2718999

The present invention provides a tungsten trioxide microparticle carrying on its surface divalent copper salt. The divalent copper salt is utilized to perform a multi-electron reduction of oxygen. The tungsten trioxide exhibits a high oxidative decomposition activity when exposed to visible light.

La présente invention concerne une matière de photocatalyseur qui se caractérise en ce qu'elle comprend des microparticules de trioxyde de tungstène et un sel de cuivre divalent présent sur les surfaces des microparticules. Il devient ainsi possible d'accroître l'activité de décomposition oxydante du trioxyde de tungstène par une irradiation avec de la lumière visible, en tirant parti du fait qu'un sel de cuivre divalent peut agir en tant que catalyseur de réduction multiélectron pour l'oxygène.

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