Photodegradation with titanium catalysts

Titanium dioxide and titanium incorporated into aiumino-siiicate photocataiysts have been studied for the photodegradation of dichioromethane into carbon dioxide and HCi. Different forms of titanium dioxide have been produced such as rutiie and anatase as weii as an amorphous form. Titanium piiiared ciays have been found to be more active than titanium ciays. Carbon feit was aiso used as a support for titanium species and this materiai is the most active we have studied. By enriching solutions of dichloromethane with oxygen or by pre-irradiating the titanium catalyst, faster rates of reaction and larger conversions are obtained. 

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