B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 37/02 (2006.01) B01J 31/04 (2006.01) B01J 31/06 (2006.01) B01J 35/00 (2006.01) B01J 35/02 (2006.01)
Patent
CA 2414323
Supported photooxidation catalysts containing a metal oxide or metal ion as catalyst which is fixed to the support by means of carboxylate moieties are an alternative to existing such catalysts, particularly if low cost supports such as organic polymers, particularly polyethylene, are used. The supported photocatalysts can be used in mineralisation of organic pollutants in both liquids and gases and show reduced leaching of the catalyst and good resistance towards reactive oxygen species generated during the degradation process.
La présente invention concerne des catalyseurs de photo-oxydation supportés contenant comme catalyseur un oxyde métallique ou un ion métallique fixé sur le support à l'aide de fragments de carboxylate, qui constituent une alternative aux catalyseurs existants, en particulier lorsque l'on utilise des supports à faible coût tels que des polymères organiques, en particulier le polyéthylène. Les photocatalyseurs de l'invention peuvent être utilisés dans la minéralisation des polluants organiques présents dans les liquides et les gaz, ils permettent de réduire la lixiviation du catalyseur et ils possèdent une bonne résistance envers l'espèce chimique d'oxygène réactionnel produite au cours du processus de dégradation.
Ecole Polytechnique Federale de Lausanne (epfl)
Fetherstonhaugh & Co.
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