Sonocatalytic Reduction of Hexavalent Chromium by Metallic Magnesium Particles

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dc.contributor.authorAyyildiz, Onder
dc.contributor.authorAcar, Ekrem
dc.contributor.authorIleri, Burcu
dc.date.accessioned2025-01-27T21:05:47Z
dc.date.available2025-01-27T21:05:47Z
dc.date.issued2016
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe chemical reduction of hexavalent chromium (Cr(VI)) by combined zerovalent magnesium (ZVMg) and ultrasound (US) was studied under batch conditions. Results have demonstrated that the reduction of Cr(VI) mediated by ZVMg enhanced significantly with the ultrasonic effect. The percent reduction of Cr(VI) by ZVMg (5 g/L) was about 20 % after 60 min, but its complete reduction was attained within an hour when ultrasound was applied at a power of 100 W. The efficiency of Cr(VI) reduction increased with increasing ultrasonic power and magnesium dose. The synergy of the combined treatment has been attributed to the surface activation of ultrasonic treatment. Scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX), atomic absorption spectrophotometer (AAS), pH, and X-ray diffraction (XRD) analyses have revealed that magnesium and chromium hydroxides and hydroxide ion were three major by-products during the reduction of Cr(VI) by US/ZVMg under pH-uncontrolled conditions. The proposed method does not require acid and buffer addition and has an advantage of removing Cr(VI) and its by-product (Cr(III)) simultaneously.
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK) [112Y254]
dc.description.sponsorshipA part of this work was funded by the Scientific and Technical Research Council of Turkey (TUBITAK) (Project No. 112Y254).
dc.identifier.doi10.1007/s11270-016-3065-y
dc.identifier.issn0049-6979
dc.identifier.issn1573-2932
dc.identifier.issue10
dc.identifier.scopus2-s2.0-84984903641
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/s11270-016-3065-y
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27794
dc.identifier.volume227
dc.identifier.wosWOS:000385419200006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer International Publishing Ag
dc.relation.ispartofWater Air and Soil Pollution
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectZerovalent magnesium
dc.subjectUltrasound
dc.subjectHexavalent chromium
dc.subjectpH-uncontrolled
dc.subjectSurface activation
dc.titleSonocatalytic Reduction of Hexavalent Chromium by Metallic Magnesium Particles
dc.typeArticle

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