Mohana Roopan S

Department of Chemistry

School of Advanced Sciences

Vellore Campus

Madhumitha G

Kajbafvala A

Banadaki A.D

Pillai K.S.

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Bimetallic nanomaterials: functional efficacy towards synthesis, photocatalytic degradation, and biomedical catalysts

Journal of Nanomaterials

Zinc oxide (ZnO) nanoparticles (NPs) were synthesized by a conventional method using Pithecellobium dulce peel extract. The phytochemicals present in the peel act as stabilizing agents. The ZnO NPs were characterized by UV–vis spectroscopy, X-ray diffraction (XRD), scanning electron microscopy and transmission electron microscopy. The XRD pattern confirmed the formation of crystals, which exactly matched with JCPDS card no.36–1451. The nondestructive XRD pattern showed a hexagonal crystalline nature and scanning electron microscopy revealed a spherical shape. Further, the ZnO NPs exhibited excellent photodegradation efficiency with regard to the dye methyleneblue (MB), a major water pollutant released by the textile industry. A kinetic study of photodegradation of MB showed 63{\%} degradation and a rate constant of 0.00812 min−1. The antifungal activity of the ZnO NPs resulted in 37.81{\%} and 63.57{\%} inhibition of the growth of Aspergillus flavus and 40.21{\%} and 43.04{\%} of growth inhibition of Aspergillus niger at 500 and 1000 ppm of ZnO NPs, respectively.

Journal of Physics and Chemistry of Solids

Green synthesis, characterization and antifungal and photocatalytic activity of Pithecellobium dulce peel–mediated ZnO nanoparticles

There are variety of effluents are dumped or directly discarded into atmosphere due to drastic industrialization which leads to damages in living organisms. To prevent many type of environmental defects our research group focused to synthesis material which degrades toxic substance like dyes with the help of ecofriendly synthesis. We have synthesized Tin oxide nanoparticles (SnO2 NPs) using aqueous extract of Catunaregam spinosa (C. spinosa) root barks. Bio-inspired synthesized SnO2 NPs were monitored by analytical characterization which inferred that SnO2 NPs resulted in shape of spherical, with size average of 47 ± 2 nm. Further bio-green synthesized SnO2 NPs were subjected to degrade toxic Congo red dye, which results in higher percentage of degradation with the K value of 0.9212 which obeys pseudo-first order reaction kinetics. This report said to be novel due to null report on SnO2 NPs synthesized from C. spinosa root bark aqueous extract which also stated to be simplest, cheaper and non-toxic while compare to other methods. Further to identify the metabolites which is present in the aqueous extract were identified through Gas Chromatography and Mass Spectrometry with methanol as a solvent results that 7-hydroxy-6-methoxy-2H-1-benzopyran-2-one contains higher area percentage of 67.47 with the retention time (RT) of 18.660. © 2016 Elsevier B.V.

Journal of Photochemistry and Photobiology B: Biology

Green chemical approach towards the synthesis of SnO 2 NPs in argument with photocatalytic degradation of diazo dye and its kinetic studies

Bimetallic Nanomaterials: Functional Efficacy towards Synthesis, Photocatalytic Degradation, and Biomedical Catalysts

Journal	Journal of Nanomaterials
Publisher	Hindawi Limited
ISSN	1687-4110
Open Access	Yes