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dc.contributor.authorMbarek Wael, Ben
dc.contributor.authorAzabou, M.
dc.contributor.authorPineda Soler, Eloi
dc.contributor.authorFiol Santalo, Núria
dc.contributor.authorEscoda, Lluïsa
dc.contributor.authorSuñol Martinez, Juan Jose
dc.contributor.authorKhitouni, Mohamed
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.identifier.citationMbarek Wael, B., Azabou, M., Pineda, E., Fiol, N., Escoda, L., Suñol, J.J., Khitouni, M. Rapid degradation of azo-dye using Mn-Al powders produced by ball-milling. "RSC advances", 1 Gener 2017, vol. 7, núm. 21, p. 12620-12628.
dc.description.abstractThis study was conducted on the reduction reaction of the azo dye Reactive Black 5 by means of the Mn85Al15 particles prepared by melt-spinning and ball-milling processes. The morphology, the surface elementary composition and the phase structure of the powders were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction. The degradation efficiency of the ball milled powder was measured by using an ultraviolet-visible absorption spectrophotometer and the collected powder was analyzed by means of Fourier transform infrared spectroscopy technique to characterize the functional groups in the extract. The degradation of Reactive Black 5 and the analysis of the aromatic by-products were investigated by high performance liquid chromatography coupled with tandem mass spectrometry. The ball-milled powder shows higher degradation efficiency and the Reactive Black 5 solution was completely decolorized after 30 min. The degradation kinetics and the formation by-products depend on the pH and temperature of the solution. The analyses of the extracted product confirmed the cleavage of the (–N[double bond, length as m-dash]N–) bonds. Our findings are expected to pave the way for a new opportunity with regard to the functional applications of nanostructured metallic particles.
dc.format.extent9 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshSpectrophotometry, Ultraviolet--methods
dc.subject.lcshBall mills
dc.subject.lcshMelt spinning
dc.titleRapid degradation of azo-dye using Mn-Al powders produced by ball-milling
dc.contributor.groupUniversitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorMbarek Wael, B., Azabou, M., Pineda, E., Fiol, N., Escoda, L., Suñol, J.J., Khitouni, M.
upcommons.citation.publicationNameRSC advances

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