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Synthesis and characterization of a heterogeneous ternary nanocomposite photocatalyst BiFeO3-Graphene-NaNbO3 for the degradation of MB dye disrupting pulmonary organs

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dc.contributor.authorVidhya, S.
dc.contributor.authorSubramanian, Yathavan
dc.contributor.authorDurgadevi, K.
dc.contributor.authorSabarish, V.C. Bharath
dc.contributor.authorDurairajan, A.
dc.contributor.authorGraça, M.P.F.
dc.contributor.authorGajendiran, J.
dc.contributor.authorAzad, Abul Kalam
dc.contributor.authorRaj, S. Gokul
dc.contributor.authorKumar, G. Ramesh
dc.contributor.authorKumar, J. Kishor
dc.date.accessioned2026-10-16T06:22:18Z
dc.date.available2026-10-16T06:22:18Z
dc.date.issued2025
dc.description.abstractA maiden attempt to synthesize ternary nanocomposites of Bismuth Ferrite-Graphene-Sodium Niobate (BiFeO3- Graphene-NaNbO3) has been made by utilizing conventional solution method. Systematic increase in the loading concentrations of graphene on BiFeO3-NaNbO3 heterogeneous composites found to have influenced their structural parameters, optical properties, photocatalytic dye degradation and their dielectric properties and they were assessed from powder X-ray diffraction (XRD), Raman spectral measurements, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX), optical absorption spectra in UV–Visible-Near IR region, Photoluminescence (PL) studies, photocatalysis and dielectric analyses. As such, admixture of graphene concentration of 0.025 percent with BiFeO3-NaNbO3 composite powders capable of degrading the methylene blue (MB) dye upto a maximum efficiency of 92% within the time frame of 120 min. Strikingly, at the same graphene concentration of 0.025 percent, the synthesized ternary composite sample exhibits an increased dielectric constant value of ‘37′. A close parallelism between the dielectric behaviour and photocatalytic dye degradation properties could be predicted from this study. Further, among various loading concentrations of graphene with BiFeO3- NaNbO3, lower concentration of 0.025 percent of graphene has been found as the optimum one for the improved MB dye degradation characteristics of the ternary composites of BiFeO3-Graphene-NaNbO3 with enhanced suppression of carrier recombination. The other interesting results have been discussed in detail.
dc.format.extent13 pages
dc.identifier.urihttps://doi.org/10.1016/j.optlastec.2024.111798
dc.identifier.urihttps://repository.ubd.edu.bn/handle/123456789/4731
dc.language.isoen
dc.publisherElsevier Ltd.
dc.sourceOptics and Laser Technology
dc.subject.lcshPhotocatalysis
dc.subject.lcshNanocomposites (Materials)
dc.subject.lcshGraphene
dc.subject.lcshMethylene blue
dc.subject.lcshWater--Purification
dc.titleSynthesis and characterization of a heterogeneous ternary nanocomposite photocatalyst BiFeO3-Graphene-NaNbO3 for the degradation of MB dye disrupting pulmonary organs
dc.typeArticle
dspace.entity.typePublication
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