Título:
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High efficiency decolorization of azo dye Reactive Black 5 by Ca-Al particles
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Autor/a:
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Mbarek Wael, Ben; Pineda Soler, Eloi; Escoda, Lluïsa; Suñol Martinez, Juan Jose; Khitouni, Mohamed
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials |
Abstract:
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This work studies the degradation of azo dye Reactive Black 5 by Ca-Al metallic particles prepared by melt-spinning and ball-milling. The morphology and the phase structure of the metallic powders were characterized and the decolorization efficiency of Reactive Black 5 solutions were assessed by monitoring the dye degradation by ultraviolet-visible absorption spectrophotometry. The decolorization process using the Ca-Al powders showed fast kinetics and high efficiency. 40 mg L-1 dye solution was successfully decolorized in 1 min using 0.1 g/100 mL of Ca65Al35 powder, suggesting it as an effective, low-cost means for degradation of azo-compounds. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria química::Indústries químiques::Colorants, pintures i vernissos -Coloring matter -Order-disorder in alloys -Ball milling -Decolorization -Rapid solidification -Reactive black 5 -Compostos intermetàl·lics -Colorants -- Tractament -Transicions ordre-desordre (Aliatges) |
Derechos:
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Tipo de documento:
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Artículo - Versión presentada Artículo |
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