Faculty Publications

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Publications by NITK Faculty

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    Immobilized magnetic nano catalyst for oxidation of alcohol
    (Elsevier, 2015) Bhat, P.B.; Rajarao, R.; Sahajwalla, V.; Badekai Ramachandra, B.R.
    Covalent attachment of Schiff base on magnetic nanoparticles yielded good selectivity for oxidation of alcohols. The ferromagnetic interaction in the complex added comprehensive advantage in enhancing the catalytic activity of the nanocatalyst. A greener approach for alcohol oxidation was achieved in solventless method with good yield (>78%). Leaching experiments confirmed a strong interaction between magnetic support and complex. The catalyst showed significant conversion even after 5 catalytic runs. © 2015 Elsevier B.V. All rights reserved.
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    Magnetically recoverable immobilized cobalt nanocatalyst for oxidation of alcohols
    (American Scientific Publishers, 2016) Bhat, P.B.; Badekai Ramachandra, B.R.
    A magnetically recoverable symmetric teradentate Schiff base cobalt complex immobilised silica-coated Fe3O4nanoparticles exhibited efficient oxidation of the alcohols to carbonyls with mild H2O2oxidant. Reverse coprecipitation method yielded superparamagnetic Fe3O4at room temperature. The nanocatalyst exhibited good recoverability without significant loss in activity and selectivity within successive runs. © 2016 American Scientific Publishers. All rights reserved.
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    Photostability and electrical and magnetic properties of cobalt oxide nanoparticles through biological mechanism of endophytic fungus Aspergillus nidulans
    (Springer, 2020) Vijayanandan, A.S.; Mohan Balakrishnan, R.M.
    The study elaborates magnetic and electrical properties of greenly synthesized cobalt oxide (Co3O4) nanoparticles through endophytic fungus Aspergillus nidulans isolated from medicinal plant Nothapodytes foetida, which examines the ability of the nanoparticles to be magnetized and electrified, being one of the yardsticks for energy application. On increasing the precursor concentration from 2 to 10 mM, there is a shift in paramagnetic to weak ferromagnetic behavior of nanoparticles with the increase in saturation magnetization (Ms) from 0.161 to 7.75 emu/g. Frequency dependence of dielectric constant is found to increase with an increase in frequency, and the aforementioned nanoparticles can be used as a dielectric up to 1,50,000 Hz as dissipation factor is lesser than one. Besides, photostability study has indicated that the particles are stable for at least 45 days. Through liquid chromatography–mass spectrometry (LC–MS) analysis, phytochelatins are identified to be involved in the biosynthesis of nanoparticles. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.