title: Immobilized Lignin Peroxidase-Like Metalloporphyrins as Reusable Catalysts in Oxidative Bleaching of Industrial Dyes.
abstract: Synthetic and bioinspired metalloporphyrins are a class of redox-active catalysts able to emulate several enzymes such as cytochromes P450, ligninolytic peroxidases, and peroxygenases. Their ability to perform oxidation and degradation of recalcitrant compounds, including aliphatic hydrocarbons, phenolic and non-phenolic aromatic compounds, sulfides, and nitroso-compounds, has been deeply investigated. Such a broad substrate specificity has suggested their use also in the bleaching of textile plant wastewaters. In fact, industrial dyes belong to very different chemical classes, being their effective and inexpensive oxidation an important challenge from both economic and environmental perspective. Accordingly, we review here the most widespread synthetic metalloporphyrins, and the most promising formulations for large-scale applications. In particular, we focus on the most convenient approaches for immobilization to conceive economical affordable processes. Then, the molecular routes of catalysis and the reported substrate specificity on the treatment of the most diffused textile dyes are encompassed, including the use of redox mediators and the comparison with the most common biological and enzymatic alternative, in order to depict an updated picture of a very promising field for large-scale applications.
authors.affiliation: Dipartimento di Scienze Biomediche, Universit&#224; di Cagliari, Complesso Universitario, SP1 Km 0.700, Monserrato (CA) 09042, Italy. pzucca@unica.it.|Consorzio UNO Oristano, via Carmine snc, Oristano 09170, Italy. pzucca@unica.it.
authors.forename: Paolo
authors.initials: P
authors.lastname: Zucca
authors.affiliation: Department of Chemistry and QOPNA, University of Aveiro, Aveiro 3810-193, Portugal. claudianeves@ua.pt.
authors.forename: Cláudia M B
authors.initials: CM
authors.lastname: Neves
authors.affiliation: Department of Chemistry and QOPNA, University of Aveiro, Aveiro 3810-193, Portugal. msimoes@ua.pt.
authors.forename: Mário M Q
authors.initials: MM
authors.lastname: Simões
authors.affiliation: Department of Chemistry and QOPNA, University of Aveiro, Aveiro 3810-193, Portugal. gneves@ua.pt.
authors.forename: Maria da Graça P M S
authors.initials: Mda G
authors.lastname: Neves
authors.affiliation: Dipartimento di Scienze Biomediche, Universit&#224; di Cagliari, Complesso Universitario, SP1 Km 0.700, Monserrato (CA) 09042, Italy. paolo.zucca@consorziouno.it.
authors.forename: Gianmarco
authors.initials: G
authors.lastname: Cocco
authors.affiliation: Dipartimento di Scienze Biomediche, Universit&#224; di Cagliari, Complesso Universitario, SP1 Km 0.700, Monserrato (CA) 09042, Italy. sanjust@unica.it.
authors.forename: Enrico
authors.initials: E
authors.lastname: Sanjust
mesh_terms: D000327:Adsorption; D002384:Catalysis; D004396:Coloring Agents / Q000737:chemistry*; D003577:Cytochrome P-450 Enzyme System / Q000737:chemistry; D004800:Enzymes, Immobilized; D006418:Heme / Q000737:chemistry; D008665:Metalloporphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D015394:Molecular Structure; D010084:Oxidation-Reduction; D010544:Peroxidases / Q000737:chemistry*; D016060:Sorption Detoxification; D013379:Substrate Specificity; D013784:Textiles; D062065:Wastewater / Q000737:chemistry
chemical_list: D004396:Coloring Agents; D003577:Cytochrome P-450 Enzyme System; D004800:Enzymes, Immobilized; D006418:Heme; D008665:Metalloporphyrins; D010544:Peroxidases; D062065:Wastewater; C042858:lignin peroxidase
keywords: biomimetic; immobilization; lignin peroxidase; metalloporphyrins; textile dyes; wastewaters