Decolorization Kinetics and Properties of Triphenodioxazine Reactive Dyes in Sodium Perborate-TAED Bleaching System

Jun Zhang; Yang Zhu

doi:10.4028/www.scientific.net/AMR.550-553.2612

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Design and Thermodynamic Analysis on One-Step Amination of Benzene to Aniline Systems
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Decolorization Kinetics and Properties of Triphenodioxazine Reactive Dyes in Sodium Perborate-TAED Bleaching System
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Vapor-Liquid Equilibrium for Binary Systems of Methyl Ethyl Ketone and Methyl Isobutyl Ketone
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Thermodynamic Study of Removing Boron from Metallurgical Silicon by Si – Al Melt Refining
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Adsorption Kinetics of Uranium(VI) on Carboxylic Acid Fiber
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Thermodynamics of Phenol Adsorption on the Microsphere Based on Starch
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 550-553Decolorization Kinetics and Properties of...

Decolorization Kinetics and Properties of Triphenodioxazine Reactive Dyes in Sodium Perborate-TAED Bleaching System

Abstract:

The decolorization behaviors of a triphenodioxazine reactive dye (C.I. Reactive Blue 198) in the activated oxygen bleach system containing sodium perborate (PB) and tetra-acetylethylenediamine (TAED) were investigated. The decolorization kinetics of the dye was found to follow the first-order kinetic model and the rate constant of decolorization increased significantly with increasing temperature. The activation energy for decolorizing reaction was 50.41 kJ/mol. The highest rate constant appeared at pH 8. The triphenodioxazine reactive dye showed poor stability to activated oxygen washing.