Photocatalytic oxidation of Cibacron Yellow LS-R.
The photocatalytic degradation of Cibacron Yellow LS-R (CIY), an azo dye, has been investigated in aqueous heterogeneous solutions containing semiconductor oxides as photocatalysts. The disappearance of the organic molecule follows approximately a pseudo-first kinetic order according to the Langmuir-Hinshelwood model. Various commercial photocatalysts are compared with respect to their decolorization efficiency, the COD, as well as the toxicity reduction. The effect of the temperature on the reaction rate is ascertained.
Kositzi
Maria
M
Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
Poulios
Ioannis
I
Samara
Konstantini
K
Tsatsaroni
Euthimia
E
Darakas
Efthymios
E
D048908:Aliivibrio fischeri / Q000187:drug effects / Q000378:metabolism; D001391:Azo Compounds / Q000737:chemistry* / Q000528:radiation effects* / Q000633:toxicity; D002384:Catalysis; D003116:Color; D004396:Coloring Agents / Q000737:chemistry* / Q000528:radiation effects* / Q000633:toxicity; D049449:Luminescence; D010084:Oxidation-Reduction; D010777:Photochemistry; D014025:Titanium / Q000737:chemistry; D014466:Ultraviolet Rays; D014865:Waste Disposal, Fluid / Q000379:methods; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000528:radiation effects* / Q000633:toxicity; D018508:Water Purification / Q000379:methods; D015034:Zinc Oxide / Q000737:chemistry
D001391:Azo Compounds; D004396:Coloring Agents; D014874:Water Pollutants, Chemical; C009495:titanium dioxide; D014025:Titanium; D015034:Zinc Oxide