Decolorization and mineralization of an azo reactive dye using loaded nano-photocatalysts on spacer fabric: kinetic study and operational factors

Ghoreishian, Seyed Majid, Badii, Khashayar, Norouzi, Mohammad, Rashidi, Abosaeed, Montazer, Majid, Sadeghi, Mahsa and Vafaee, Maedeh 2014, Decolorization and mineralization of an azo reactive dye using loaded nano-photocatalysts on spacer fabric: kinetic study and operational factors, Journal of the Taiwan Institute of Chemical Engineers, vol. 45, no. 5, pp. 2436-2446, doi: 10.1016/j.jtice.2014.04.015.

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Title Decolorization and mineralization of an azo reactive dye using loaded nano-photocatalysts on spacer fabric: kinetic study and operational factors
Author(s) Ghoreishian, Seyed Majid
Badii, Khashayar
Norouzi, Mohammad
Rashidi, Abosaeed
Montazer, Majid
Sadeghi, Mahsa
Vafaee, Maedeh
Journal name Journal of the Taiwan Institute of Chemical Engineers
Volume number 45
Issue number 5
Start page 2436
End page 2446
Total pages 11
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2014-09
ISSN 1876-1070
1876-1089
Keyword(s) decolorization
textile wastewater
azo reactive dye
3-dimensional fabric
kinetics study
Summary In this study, the photocatalytic decolorization and mineralization of Remazol Black B (RBB), an azo reactive dye, in aqueous solutions was investigated using UV/H2O2/ZnO, UV/H2O2/TiO2 and UV/H2O2/ZnO:TiO2 systems. ZnO and TiO2 nanoparticles were loaded on 3-dimensional polyethylene terephthalate fabrics (spacer fabrics). Morphology of the spacer fabrics and the presence of the nanoparticles were studied by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS), respectively. Furthermore, the effects of key operational parameters on the efficiency of the decolorization were investigated. These parameters included initial pH value, initial hydrogen peroxide concentration, initial dye concentration, the loaded nanoparticle ratio and the presence of anions (sulfate, chloride and bicarbonate). Zero-, first- and second-order reaction kinetics were evaluated. Complete decolorization and high efficient mineralization with 90% total organic carbon (TOC) reduction were achieved at 120min treatment in the case of ZnO:TiO2 under optimum condition. The results proved that the novel heterogeneous photocatalytic process is capable of decolorizing and mineralizing azo reactive dyes in textile wastewater.
Language eng
DOI 10.1016/j.jtice.2014.04.015
Field of Research 010301 Numerical Analysis
030101 Analytical Spectrometry
030501 Free Radical Chemistry
030599 Organic Chemistry not elsewhere classified
030601 Catalysis and Mechanisms of Reactions
090402 Catalytic Process Engineering
090409 Wastewater Treatment Processes
100701 Environmental Nanotechnology
Socio Economic Objective 869805 Management of Water Consumption by Manufacturing Activities
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Taiwan Institute of Chemical Engineers
Persistent URL http://hdl.handle.net/10536/DRO/DU:30085226

Document type: Journal Article
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