Degradation of zao dye solutions by a nanocrystalline Fe-based alloy and the adsorption of their by-products by cork
dc.contributor.author
dc.date.accessioned
2024-03-12T15:53:24Z
dc.date.available
2024-03-12T15:53:24Z
dc.date.issued
2023-12-12
dc.identifier.uri
dc.description.abstract
In this study, the efficiency of mechanically alloyed Fe80Si10B10 in degrading basic red 46 azo dye is investigated. Moreover, the influences of different parameters, such as pH and time, on the elimination of the aromatic derivatives obtained as by-products of the fracture of the azo group are also analyzed. After beginning the reduction to the normal conditions of pH (4.6) and temperature, the experimental findings showed a discoloration of 97.87% after 20 min. The structure and morphology of the nanocrystalline Fe80Si10B10 powder were characterized by SEM and XRD before and after use in the degradation process. The XRD patterns of the Fe-Si-B powder after redox reaction suggest that the valent zero Fe of the alloy is the reducing agent. Powdered cork was then used as a biosorbent for the removal of the by-products generated, resulting in increasing removal percentages from pH 7 (26%) to pH 9 (62%) and a contact time of 120 min. The FTIR spectrum of the cork after adsorption shows a shift of the bands, confirming the interaction with the aromatic amines. The present findings show that metallic powders and natural cork perform well together in removing azo dye solutions and their degradation products
dc.description.sponsorship
This research was funded by the University of Girona (grant number Pontos/01)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
MDPI (Multidisciplinary Digital Publishing Institute)
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Reproducció digital del document publicat a: https://doi.org/10.3390/ma16247612
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Materials, 2023, vol. 16, núm. 24, p. 7612
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Articles publicats (D-F)
dc.rights
Attribution 4.0 International (CC BY 4.0)
dc.rights.uri
dc.source
Mbarek, Wael Ben Issa, Maher Salvadó Martín, Victòria Escoda i Acero, Ma. Lluïsa Khitouni, Mohamed Suñol Martínez, Joan Josep 2023 Degradation of zao dye solutions by a nanocrystalline Fe-based alloy and the adsorption of their by-products by cork Materials 16 24 7612
dc.subject
dc.title
Degradation of zao dye solutions by a nanocrystalline Fe-based alloy and the adsorption of their by-products by cork
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
038393
dc.type.peerreviewed
peer-reviewed
dc.identifier.eissn
1996-1944