Naslov
Comparative study of UV/TiO2, UV/ZnO and photo-Fenton processes for the organic reactive dye degradation in aqueous solution

Autori
Peternel, Igor ; Koprivanac, Natalija ; Lončarić Božić, Ana ; Kušić, Hrvoje

Izvornik
Journal of Hazardous Materials (0304-3894) 148 (2007), 1-2; 477-484

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
reactive dye; UV radiation; AOPs; mineralization; color removal

Sažetak
In this study Advanced Oxidation Processes (AOPs), UV/TiO2, UV/ZnO and photo-Fenton, were applied in order to degrade C.I. Reactive Red 45 (RR45) dye in aqueous solution. The effects of key operating parameters, such as initial pH, catalyst and hydrogen peroxide dosage as well as the effect of initial dye concentration on decolorization and mineralization extents were studied. Primary objective was to determine the optimal conditions for each of the processes. The influence of added zeolite on the process efficiency was also studied. UV/VIS spectrophotometric and total organic carbon (TOC) measurements were performed for determination of decolorization and mineralization extents. It has been found that photo-Fenton process was the most efficient with 74.2 % TOC removal and complete color removal achieved after a one-hour treatment.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA