Synthesis of Nano ZnO: A Catalyst for N-formylation of Aromatic Amines and Biodiesel Application

Author(s): Lakshmi S.R. Yadav, Rangashamaiah Venkatesh, Mahadevaiah Raghavendra, Thippeswamy Ramakrishnappa, Narayanappa Dhananjaya, Ganganagappa Nagaraju*

Journal Name: Current Nanomaterials

Volume 5 , Issue 1 , 2020

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Graphical Abstract:


Background: Zinc oxide nanoparticles prepared from an easy, eco-friendly and cost-effective green combustion technique using an extract of turmeric root has been an immense attractive nanomaterial that is used widely in light emitting display systems, piezoeletricity, electric conductivity, and biological applications. The prepared samples were characterized for their structural and morphological study using various analytical techniques.

Results: Crystallite size was calculated by both XRD as well as UV-visible absorption measurements and Crystallite size was found to be 14-36 nm. An equation was developed with the aid of an effective mass model (Brus 1986) to calculate the size of the particle as a function of the peak absorbance wavelength. The energy bandgap of the synthesized sample calculated to be in the range of 4.74 - 5.0 eV by UV-Vis spectra confirms the quantum confinement. ZnO nanocatalyst is used for the synthesis of biodiesel from garcinia gummigutta seed oil has been studied. The environmental friendly procedure was carried for the formylation of amines under solvent-free reaction condition and simple work-up giving pure products with prompt recyclability behavior are the main features of the reaction.

Conclusion: In this work, ZnO NPs were synthesised using turmeric root extract as a fuel via green combustion method. It is an environmentally friendly, easy as well as cost-effective method for the synthesis of nanoparticles. ZnO NPs were examined through various equipments such as PXRD, UV-Vis, FTIR, and SEM studies. XRD study show the hexagonal wurtzite structure. it is a good catalyst for the synthesis of biodiesel from the pongamiapinnata oil. It also serves as a catalyst for the Nformylation reactions, which involves the clean procedure under milder reaction conditions with an excellent yield of the desired products.

Keywords: ZnO Nps, SEM, photoluminescence, biodiesel, formylation, aromatic amines.

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Article Details

Year: 2020
Page: [66 - 78]
Pages: 13
DOI: 10.2174/2405461505666200316121735
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