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Niu, J.* ; Chen, J.* ; Henkelmann, B. ; Quan, X.* ; Yang, F.* ; Kettrup, A. ; Schramm, K.-W.

Photodegradation of PCDD/Fs adsorbed on spruce (Picea abies [L.] Karst.) needles under sunlight irradiation.

Chemosphere 50, 1217-1225 (2003)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Spruce (Picea abies (L.) Karst.) needles were exposed to exhaust gas containing polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) generated by combustion of polyvinyl chloride, wood, high-density polyethylene, and styrene. Photodegradation of PCDD/Fs adsorbed on spruce needles under sunlight irradiation was studied. The photodegradation of PCDD/Fs follows pseudo-first-order reaction kinetics, with photolysis half-lives ranging between 40 and 100 h. The photolysis rates of PCDF congeners are higher than PCDD congeners with the same chlorinated substitutions. Higher chlorinated PCDD/Fs tend to photolyze slowly. The wax components in spruce needles may act as proton donors and accelerate the photolysis rate. C–Cl cleavage through the addition of protons to PCDD/F molecules may be an important route for PCDD/Fs photodegradation.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Photodegradation; PCDD/Fs; Spruce needles; Sunlight irradiation
ISSN (print) / ISBN 0045-6535
e-ISSN 1879-1298
Zeitschrift Chemosphere
Quellenangaben Band: 50, Heft: 9, Seiten: 1217-1225 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort Kidlington, Oxford
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Ecological Chemistry (IOEC)