Decolorization of azo dye solutions photoinduced by ferric oxides

Authors
Wu, F Wang, ZP Deng, NS
Citation
F. Wu et al., Decolorization of azo dye solutions photoinduced by ferric oxides, FR ENV BULL, 10(3), 2001, pp. 284-286
Citations number
10
Categorie Soggetti
Environment/Ecology
Journal title
FRESENIUS ENVIRONMENTAL BULLETIN
ISSN journal
10184619 → ACNP
Volume
10
Issue
3
Year of publication
2001
Pages
284 - 286
Database
ISI
SICI code
1018-4619(200103)10:3<284:DOADSP>2.0.ZU;2-I
Abstract
Decolorization of azo dye, Reactive red 2, in aqueous solutions photoinduce d by ferric oxides (alpha -FeOOH, beta -FeOOH and amorphous(am)-Fe(OH)(3)) was investigated under irradiation with a 250W high pressure mercury lamp w ith lambda greater than or equal to 313 nm. Obvious decolorization occurred in the presence of these ferric oxides, especially amorphous-Fe(OH)(3). Ef fects of pH, ferric oxide dosage and initial dye concentration on photochem ical decolorization of the dye solutions were examined.