Premium
Waste‐Derived Bioorganic Substances for Light‐Induced Generation of Reactive Oxygenated Species
Author(s) -
Bianco Prevot Alessandra,
Avetta Paola,
Fabbri Debora,
Laurenti Enzo,
Marchis Tatiana,
Perrone Daniele G.,
Montoneri Enzo,
Boffa Vittorio
Publication year - 2011
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201000237
Subject(s) - bioorganic chemistry , chemistry , reactive intermediate , organic chemistry , catalysis , enzyme
Urban waste‐derived bioorganic substances (UW‐BOS) have shown promise as chemical auxiliaries for a number of technological applications in the chemical industry and in environmental remediation. In this study, the application of these substances in the photodegradation of organic pollutants is addressed. The experimental work is specifically focused on the photolysis mechanism promoted by AC8, a UW‐BOS isolated from a 2:1 w/w mixture of food and green residues, composted for 110 days, using 4‐chlorophenol (4‐CP) as probe molecule. The production of ⋅ OH and the 1 O 2 is monitored by EPR spectroscopy. The correlation between radical species evolution and photodegradation of 4‐CP is investigated. The effect of 1 O 2 and ⋅ OH scavengers on the 4‐CP degradation process is also checked. The results suggest that the role of these species in the photodegradation of 4‐CP depends on AC8 concentration. AC8 is thereby proven to be a photosensitizer for applications in environmental remediation. The results on AC8 further support the use of urban bio‐waste as a versatile source of chemical auxiliaries of biological origin for use in diversified applications.