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Your search keyword '"Kar, Kamal K."' showing total 8 results
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8 results on '"Kar, Kamal K."'

7. Superparamagnetic behavior of MnFe2O4/RGO nanocomposites.

Author

Mishra, Amodini and Kar, Kamal K.

Subjects
*NANOCOMPOSITE materials, *X-ray diffraction, *MAGNETIC properties, *NANOPARTICLES
Abstract

In the present work, MnFe2O4/RGO nanocomposites were successfully synthesized by using the hydrothermal method. The phase formation of MnFe2O4 nanoparticles was confirmed by using X-ray diffraction (XRD) study. Due to incorporation of MnFe2O4 nanoparticles, change in the characteristic Raman peaks on GO is observed using Raman spectrometer. Magnetic properties and determination of various magnetic parameters of MnFe2O4/RGO nanocomposites was carried out Vibrating-sample magnetometry (VSM). This study provides a new platform for the use of MnFe2O4/RGO nanocomposites as a soft material. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Zingiber Officinale-assisted Graphene Oxide Green Reduction for Excellent Photocatalysis

Author

Saini, Krati, Chamoli, Pankaj, Shukla, Ravi K., Kar, Kamal K., and Raina, K. K.

Abstract

Introduction: A facile approach for producing graphene nanosheets (GNs) has been established by reducing graphene oxide (GO) with ginger extract (GEx) at low temperature. The elimination of oxygen characteristics from GO has been validated by a Raman study.Method: FTIR analysis also supports the Raman signatures of the removal of oxygen species from the carbon core. Surface analysis confirms the remarkable deoxidation of GO and settles the production of GNs. After that, synthesized GNs were tested for their capability to photodegrade Methylene blue (MB) dye under visible and UV (both 125 W) light.Result: At low concentrations (0.5 mg), GNs are an effective photocatalyst for the degradation of MB, with a maximum degradation efficiency of 91.84% in 45 minutes when exposed to UV light irradiation.Conclusion: Results favor that the GEx provides a potential substitute for toxic or harmful reducing agents for the ecologically sustainable production of GNs on a mass scale and synthesized GNs act as an excellent photocatalyst against MB.

Published
2024
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