Mechanism of catalytic degradation of 2,4,6-trichlorophenol by a Fe-porphyrin catalyst

 
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Mechanism of catalytic degradation of 2,4,6-trichlorophenol by a Fe-porphyrin catalyst (EN)

Christoforidis, K. C. (EN)

Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας (EL)
Christoforidis, K. C. (EN)

The catalytic oxidation of 2,4,6-trichlorophenol (TCP) by a homogeneous Fe-porphyrin catalyst (FeR(4)P) and the corresponding heterogeneous one (immobilized on silica, FeR(4)P-SiO(2)) was studied by analytical and EPR spectroscopic methods. The homogeneous catalyst was found to be more efficient for oxidative decomposition and dechlorination of TCP, compared to the heterogeneous FeR(4)P-SiO(2) catalyst. The main, initial and final, oxidation products were identified and a general catalytic mechanism was proposed concerning TCP oxidation and the by-products formation, in relation with the catalyst's redox cycle. (C) 2010 Elsevier B.V. All rights reserved. (EN)

chlorophenol (EN)


Applied Catalysis B-Environmental (EN)

English

2011


Elsevier (EN)



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