Phenol transformation induced by UVA photolysis of the complex FeCl2+

Autor:	Swapan Khanra, Davide Vione, Claudio Minero, Ezio Pelizzetti, Binay K. Dutta, Valter Maurino
Rok vydání:	2007
Předmět:	Solvent chemistry.chemical_compound Chemistry Photodissociation Environmental Chemistry Quantum yield Phenol Uva irradiation Irradiation Photochemistry Phenol degradation
Zdroj:	Environmental Chemistry Letters. 6:29-34
ISSN:	1610-3661 1610-3653
DOI:	10.1007/s10311-007-0108-z
Popis:	Here we show that the photolysis of FeCl2+ upon UV irradiation of Fe(III) at pH 0.5, yielding Cl• and then Cl 2 −• , upon further reaction with Cl−, induces phenol degradation. The photolysis of FeCl2+ can be highlighted and studied as the huge interference by FeOH2+ can be avoided under such conditions. Our data allowed the assessment of a photolysis quantum yield for FeCl2+ of 5.8 × 10−4 under UVA irradiation, much lower compared to the literature value of 0.5. The discrepancy can be explained if the photolysis process is efficient but photoformed Fe2+ and Cl• undergo recombination inside the solvent cage.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bbecbc8cce174c44ae8c4d9e9033981a https://doi.org/10.1007/s10311-007-0108-z Zobrazit plný text záznamu Full text from SpringerLink