5,10,15,20-tetrakis(4-sulfonato-phenyl)porphine-Mn(III) immobilized on imidazole-activated silica as a novel lignin-peroxidase-like biomimetic catalyst

ZUCCA, PAOLO;RESCIGNO, ANTONIO;SANJUST, ENRICO
2007-01-01

Abstract

In this study a new biomimetic lignin-peroxidase-like catalyst was investigated. Such a heterogeneous catalyst could be of potential interest for oxidative degradation of plant effluents, containing soluble lignin derivatives. 5,10,15,20-Tetrakis(4-sulfonato-phenyl)porphine-Mn(III) was coordinated to imidazole-bearing silica to give a stable adduct; by contrast, the metalloporphine did not significantly interact with plain silica gel or aminopropylsilica. The adduct showed a remarkable ability to catalyze veratryl alcohol oxidation at the expenses of H(2)O(2). Kinetic and operational characterisation of the catalyst is also reported. (c) 2007 Elsevier B.V. All rights reserved
2007
Inglese
278
1-2
220
227
8
http://www.sciencedirect.com/science/article/pii/S1381116907005560
Esperti anonimi
internazionale
scientifica
no
Zucca, Paolo; Mocci, G; Rescigno, Antonio; Sanjust, Enrico
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
4
reserved
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