Photodegradation of Dichloromethane Catalyzed by Iron(III) Chloride on Silica Gel
Laura A. Pena,
Rosa E. Segura,
Alissa M. Chan,
Patrick E. Hoggard.
Iron(III) chloride adsorbed on silica gel catalyzes the photodecomposition of dichloromethane under near-UV
irradiation, functioning through photodissociation to produce chlorine atoms that initiate a radical chain. While the photocatalytic
activity under these conditions is similar to that of FeCl4¯ heterogenized on an ion exchange resin, under solar irradiation
the FeCl3/silica system is considerably more effective.
Keywords: Dichloromethane, Iron(III) chloride, Photodegradation, Photocatalysis, Silica.
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