Fabrication, characterization and catalytic activity of ?-MnO2 nanowires for dye degradation of reactive black 5

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dc.contributor.authorRamesh, M.
dc.contributor.authorNagaraja, H.S.
dc.contributor.authorRao, M.P.
dc.contributor.authorAnandan, S.
dc.contributor.authorHuang, N.M.
dc.date.accessioned2026-02-05T09:33:12Z
dc.date.issued2016
dc.description.abstract?-MnO<inf>2</inf> nanowires (NWs) prepared by hydrothermal method are characterized using XRD and FT-IR. The crystallite size, surface area of NWs increases, whereas dislocation density and band gap decreases with an increase in oxidizer molarity. The band gap decreases from 2.55 to 1.27 eV. The above observations correlate well with the enhanced catalytic activity of MnO<inf>2</inf> NWs for degradation of azo dye reactive black 5 (RB5). About 70% of the dye were successfully removed in 60 min using 20 mg of MnO<inf>2</inf> NWs in the presence of 6 mL of H<inf>2</inf>O<inf>2</inf>. MnO<inf>2</inf> NWs show a good reusability, suggesting it as an effective and recyclable catalyst. © 2016 Elsevier B.V. All rights reserved.
dc.identifier.citationMaterials Letters, 2016, 172, , pp. 85-89
dc.identifier.issn0167577X
dc.identifier.urihttps://doi.org/10.1016/j.matlet.2016.02.076
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/25996
dc.publisherElsevier B.V.
dc.subjectAzo dyes
dc.subjectCrystallite size
dc.subjectEnergy gap
dc.subjectManganese oxide
dc.subjectNanocrystalline materials
dc.subjectNanocrystals
dc.subjectNanowires
dc.subjectReusability
dc.subjectCatalytic degradation
dc.subjectDislocation densities
dc.subjectEnhanced catalytic activity
dc.subjectFTIR
dc.subjectHydrothermal methods
dc.subjectReactive black 5
dc.subjectRecyclable catalyst
dc.subjectStructural
dc.subjectCatalyst activity
dc.titleFabrication, characterization and catalytic activity of ?-MnO2 nanowires for dye degradation of reactive black 5

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