Activation of zinc particles with 3-(N-morpholino)propanesulfonic acid buffer and ultrasound for nitrite reduction

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dc.contributor.authorBute, Duygu Nur
dc.contributor.authorAyyildiz, Onder
dc.date.accessioned2025-01-27T21:05:34Z
dc.date.available2025-01-27T21:05:34Z
dc.date.issued2023
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractZinc (Zn0) is a potent zero-valent metal (ZVM) capable of promoting both oxidation and reduction reactions in water. Similar to other ZVMs, Zn0's reactivity is rapidly retarded in water. This study aims to improve the activation of zinc particles (Zn0) by ultrasound in aqueous solutions buffered with 3-(N-morpholino)propanesulfonic acid (MOPS). Nitrite (NO2-) was chosen as a model compound to evaluate the effectiveness of ultrasonic zinc-MOPS treatment (US/Zn0/MOPS). Under similar experimental conditions, the maximum percent nitrite removal by Zn0 (8 g/L) in MOPS buffered solutions was around 45%, but it increased above 99% when ultrasound was introduced at 220.5 W. Results obtained from scanning electron microscopy-energy-dispersive X-ray spectroscopy and X-ray diffraction measurements have suggested that during US/Zn0/MOPS treatment, nitrite was reduced to nitrogen gas (N2) while Zn0 was oxidized to Zn2+ and/or Zn(OH)2. The results also indicated that the high nitrite reduction achieved by the combined method was due to a joint effect of both catalysts on zinc activation.
dc.description.sponsorshipCanakkale Onsekiz Mart University [FLY-2016-1050]
dc.description.sponsorshipThis study was funded by Canakkale Onsekiz Mart University (Project No: FLY-2016-1050). The authors thank to Dr. Burcu Ileri for her help on the calibrations of spectrophotometric methods for nitrite and ammonia analyses.
dc.identifier.doi10.5004/dwt.2023.29751
dc.identifier.endpage96
dc.identifier.issn1944-3994
dc.identifier.issn1944-3986
dc.identifier.scopus2-s2.0-85198591984
dc.identifier.scopusqualityQ3
dc.identifier.startpage87
dc.identifier.urihttps://doi.org/10.5004/dwt.2023.29751
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27710
dc.identifier.volume303
dc.identifier.wosWOS:001089581200009
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherDesalination Publ
dc.relation.ispartofDesalination and Water Treatment
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subject3-(N-morpholino)propanesulfonic acid
dc.subjectReduction
dc.subjectSurface activation
dc.subjectUltrasound
dc.subjectZero-valent zinc
dc.titleActivation of zinc particles with 3-(N-morpholino)propanesulfonic acid buffer and ultrasound for nitrite reduction
dc.typeArticle

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