Near-UV-VIS light induced acid orange 7 bleaching in the presence of SiW12O404- catalyst

Idil Arslan-Alaton*, John L. Ferry

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20 Atıf (Scopus)

Özet

The azo dye acid orange 7 (AO7) was decolourized by SiW12O405-, the one-electron photo-chemically reduced form of SiW12O404- catalyst, in aqueous solutions of aerated and de-aerated sacrificial electron donor isopropanol. Under our experimental conditions, the AO7 decay rate depended upon the competition between the azo dye and molecular oxygen for SiW12O405-. The colour removal rate constant was found as 5.2 × 104 M-1 s-1 by applying AO7-O2 competition kinetics based on a simple kinetic reaction scheme.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)175-181
Sayfa sayısı7
DergiJournal of Photochemistry and Photobiology A: Chemistry
Hacim152
Basın numarası1-3
DOI'lar
Yayın durumuYayınlandı - 20 Eyl 2002

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