rGO/MnO2 nanowires for ultrasonic-combined Fenton assisted efficient degradation of Reactive Black 5

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dc.contributor.authorRamesh, M.
dc.contributor.authorRao, M.P.
dc.contributor.authorRossignol, F.
dc.contributor.authorNagaraja, H.S.
dc.date.accessioned2026-02-05T09:32:00Z
dc.date.issued2017
dc.description.abstractReduced graphene oxide (rGO) coated manganese dioxide (MnO<inf>2</inf>) nanowires (NWs) were prepared by the hydrothermal method. Raman spectra confirmed the presence of rGO and the Brunauer-Emmett-Teller surface area of rGO/MnO<inf>2</inf> NWs was found to be 59.1 m2g-1. The physico-chemical properties of prepared catalysts for the degradation of Reactive Black 5 (RB5) dye were investigated. 84% of RB5 dye in hydrogen peroxide solution was successfully degraded using rGO/MnO<inf>2</inf> NWs, while only 63% was successfully degraded with pristine ?-MnO<inf>2</inf> NWs in 60 min owing to the smaller crystallite size and large surface area. Further, the ultrasonic-combined Fenton process significantly enhanced the degradation rate to 95% of RB5 by the catalyst rGO/MnO<inf>2</inf> NWs due to synergistic effects. The decomposition products identified using gas chromatography-mass spectrometry revealed a higher production rate of fragments in the ultrasonic-combined Fenton process. Therefore, rGO/MnO<inf>2</inf> NWs with the ultrasonic-combined Fenton process is an efficient catalyst for the degradation of RB5, and may be used for environmental protection. © IWA Publishing 2017.
dc.identifier.citationWater Science and Technology, 2017, 76, 7, pp. 1652-1665
dc.identifier.issn2731223
dc.identifier.urihttps://doi.org/10.2166/wst.2017.291
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/25482
dc.publisherIWA Publishing 12 Caxton Street London SW1H 0QS
dc.subjectCatalysis
dc.subjectCatalysts
dc.subjectChromatography
dc.subjectCrystallite size
dc.subjectDegradation
dc.subjectGraphene
dc.subjectManganese oxide
dc.subjectMass spectrometry
dc.subjectNanowires
dc.subjectBrunauer-emmett-teller surface areas
dc.subjectDecomposition products
dc.subjectEfficient catalysts
dc.subjectGas chromatography-mass spectrometry
dc.subjectHydrothermal methods
dc.subjectMnO2 NWs
dc.subjectPhysicochemical property
dc.subjectReduced graphene oxides (RGO)
dc.subjectGas chromatography
dc.subjectdye
dc.subjectgraphene oxide
dc.subjecthydrogen peroxide
dc.subjectmanganese dioxide
dc.subjectnanowire
dc.subjectreactive black 5 dye
dc.subjectreduced graphene oxide
dc.subjectunclassified drug
dc.subjectgraphite
dc.subjectmanganese derivative
dc.subjectnaphthalenesulfonic acid derivative
dc.subjectorganic compound
dc.subjectoxide
dc.subjectRemazol black B
dc.subjectblack carbon
dc.subjectcatalysis
dc.subjectcatalyst
dc.subjectdecomposition
dc.subjectdegradation
dc.subjectoxide group
dc.subjectphysicochemical property
dc.subjectreactive transport
dc.subjectultrasonics
dc.subjectadsorption
dc.subjectArticle
dc.subjectchemical structure
dc.subjectcrystallization
dc.subjectdesorption
dc.subjectenvironmental protection
dc.subjectFenton reaction
dc.subjecthydrothermal method
dc.subjectmass fragmentography
dc.subjectnanocatalysis
dc.subjectnanocatalyst
dc.subjectnanofabrication
dc.subjectparticle size
dc.subjectphysical chemistry
dc.subjectRaman spectrometry
dc.subjectreaction time
dc.subjectsurface area
dc.subjectsuspended particulate matter
dc.subjectultrasound
dc.subjectwater content
dc.subjectchemistry
dc.subjectprocedures
dc.subjectsewage
dc.subjectwater pollutant
dc.subjectGas Chromatography-Mass Spectrometry
dc.subjectGraphite
dc.subjectHydrogen Peroxide
dc.subjectManganese Compounds
dc.subjectNaphthalenesulfonates
dc.subjectOrganic Chemicals
dc.subjectOxides
dc.subjectUltrasonics
dc.subjectWaste Disposal, Fluid
dc.subjectWater Pollutants, Chemical
dc.titlerGO/MnO2 nanowires for ultrasonic-combined Fenton assisted efficient degradation of Reactive Black 5

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