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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.date.accessioned2017-05-16T10:01:43Z
dc.date.available2017-05-16T10:01:43Z
dc.date.issued2017-01-01
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.identifier.issn2046-2069
dc.identifier.urihttp://hdl.handle.net/2117/104487
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.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
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.typeArticle
dc.subject.lemacEspectrofotometria
dc.contributor.groupUniversitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials
dc.identifier.doi10.1039/c6ra28578c
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://pubs.rsc.org/en/Content/ArticleLanding/2017/RA/C6RA28578C#!divAbstract
dc.rights.accessOpen Access
drac.iddocument19842276
dc.description.versionPostprint (author's final draft)
dc.relation.projectidMPC/UdG/2016/045
upcommons.citation.authorMbarek Wael, B., Azabou, M., Pineda, E., Fiol, N., Escoda, L., Suñol, J.J., Khitouni, M.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameRSC advances
upcommons.citation.volume7
upcommons.citation.number21
upcommons.citation.startingPage12620
upcommons.citation.endingPage12628


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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain