Muriel Sanchez

Metallophthalocyanines Linked to Organic Copolymers as Efficient Oxidative Supported Catalysts

The covalent anchoring of metallo(chlorosulfonyl)phthalocyanines 1 onto the acrylic copolymers 2 and 3 has been achieved. When using H2O2 or KHSO5 as oxidant, these supported catalysts are able to oxidize a poorly biodegradable molecule such as 2,4,6-trichlorophenol or a tannin model such as 3,5-di-tert-butylcatechol. The influence of the spacer and the nature of the reaction medium on the catalytic activities have been studied, as well as the recycling of these supported metallophthalocyanine catalysts.

Oxidation of 2,4,6-trichlorophenol catalyzed by iron phthalocyanines covalently bound to silica

Abstract The covalent attachment of an iron phthalocyanine with chlorosulfonyl substituents (FePcSO 2 Cl) onto a functionalized 3-aminopropyl-silica has been achieved. This supported catalyst FePcSO 2 Cl-silica is able to degrade a recalcitrant pollutant like 2,4,6-trichlorophenol (TCP) with hydrogen peroxide as oxidant. In order to improve the catalytic efficiency of the grafted iron phthalocyanine complex, modifications of the macrocycle substituents, passivation of the silica surface, variation of the loading of the carrier and addition of an organic cosolvent to the reaction mixture were carried out.