Decolorization of antraquinone dye Reactive Blue 181 solution by UV/H2O2 process
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Date
2015
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevıer Scıence
Access Rights
info:eu-repo/semantics/openAccess
Abstract
In this study, the decolorization of C.I. Reactive Blue 181 (RB181), anthraquinone dye, by UV/H2O2 processes was investigated. The effects of operating parameters, such as H2O2 dosage, pH value, dye concentration and temperature were examined. The optimum conditions were determined as [H2O2]=500mg/L, [RB181]=500mg/L and pH 3 for 20 min reaction time. The decolorization was achieved by the UV/H2O2 process because of the production of some oxidizing agents as a result of UV irradiation. The decolorization kinetic of RB181 followed pseudo-first-order reaction kinetic. Thermodynamic analysis showed negative values of Delta H indicating exothermic under natural conditions. (C) 2014 Elsevier B.V. All rights reserved.
Description
Keywords
Anthraquinone Dye, Reactive Blue 181, UV/H2O2 Process, Decolorization
Journal or Series
Journal of Photochemıstry and Photobıology A-Chemıstry
WoS Q Value
N/A
Scopus Q Value
Q1
Volume
299
