A facile, efficient and eco-friendly synthesis of transition nano metal oxides like zinc oxide (ZnO), copper oxide (CuO), tin oxide (SnO) from Persea americana. Mill was executed followed by ex-situ polymerization favoring poly (glycerol succinate) (PGS)/nano metal oxide composite for the first time. The incorporation of nanofillers was confirmed by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction spectrometer (XRD), Scanning electron microscopy (SEM) and Energy dispersive spectroscopy (EDS). As a comparative approach, the extent of metal dissolution was evaluated in presence of precursor as well as nano dispersed forms for various concentrations (10, 50, 100, 500, 1000 ppm) under the cluster of electrochemical and non-electrochemical techniques. Enhanced inhibition efficiency of 97% was observed in the case of CuO dispersion which was additionally supported by XRD particle size determination. The increase in charge transfer resistance (Rct) and a decrease in corrosion current (Icorr) elicited from electrochemical measurements strictly proved the role of metal–oxide nanoparticles. Further, the mode of inhibitor was found to be predominantly cathodic. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.

Mohana Roopan S

Department of Chemistry

School of Advanced Sciences

Vellore Campus

Unnisa C.N

Devi G.N

Chitra S.

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

Study of bio-synthesised transition nano metal oxides dispersed polyester composites as enhanced protectors for mild steel in 0.5 M H2SO4 medium-a green approach

Journal of Adhesion Science and Technology

A novel polyamidoaminoepichlorohydrin resin was prepared and analyzed using spectroscopy techniques and its anti-corrosion properties were studied and observed. Inhibition efficiency was calculated by impedance spectroscopy, loss in weight and potentiodynamic polarization. Authors inferred results as the inhibitors tested differently are acted as better anti-corrosive agent. The thermodynamic data of activation were determined. The adsorption of resin on the steel surface was calculated according to Langmuir adsorption theory. A surface study was performed using SEM, AFM, FT-IR and XRD. Inhibition mechanism was deduced from concentration and temperature dependence of inhibition efficiency, Langmuir adsorption, SEM and AFM results. © 2017 Elsevier B.V.

Progress in Organic Coatings

Polyamidoaminoepichlorohydrin resin a novel synthetic anti-corrosive water soluble polymer for mild steel

Zinc oxide (ZnO) nanoparticles (NPs) are important materials when making different products like sun screens, textiles, and paints. In the current study, the photocatalytic effect of prepared ZnO NPs from Moringa oleifera (M. oleifera) was evaluated on degradation of crystal violet (CV) dye, which is largely released from textile industries and is harmful to the environment. Preliminarily, ZnO NP formation was confirmed using a double beam ultraviolet visible (UV-Vis) spectrophotometer; further, the NP size was estimated using XRD analysis and the functional group analysis was determined using Fourier transform infrared (FT-IR) spectroscopy. The morphology of the synthesized NPs was found to be a hexagonal shape using SEM and TEM analysis and elemental screening was analyzed using EDX. ZnO NPs were shown sized 40–45 nm and spherical in shape. The degradation percentage of ZnO NPs was calculated as 94% at 70 min and the rate of the reaction –k = 0.0282. The synthesized ZnO NPs were determined for effectiveness on biological activities such as antifungal, hemolytic, and antibacterial activity. ZnO NPs showed good antifungal activity against Alternaria saloni and Sclerrotium rolfii strains. Further, we have determined the hemolytic and antibacterial activity of ZnO NPs and we got successive results in antibacterial and hemolytic activities. © 2016, The Author(s).

Fulltext

Nanoscale Research Letters

Vegetable Peel Waste for the Production of ZnO Nanoparticles and its Toxicological Efficiency, Antifungal, Hemolytic, and Antibacterial Activities

Tin oxide (SnO2) nanoparticles were prepared using Persia Americana seed methanolic extract by calcining stannous chloride precursors at 300-500 °C by green synthesis method. Synthesized SnO2 NPs were confirmed via characterization techniques such as UV-visible spectroscopy (UV), X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and Energy Dispersive X-ray analysis (EDAX). The results of characterization technique states that the synthesized nanoparticles were in the size of 4 nm and further we have undergone catalytic degradation of organic dye named phenolsulfonphthalein (phenol red). The result showed that SnO2 NPs shows much degradation activity by the catalytic action of long UV exactly at 365 nm. © 2015 Elsevier B.V. All rights reserved.

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Green synthesis of SnO 2 nanoparticles and its photocatalytic activity of phenolsulfonphthalein dye

Journal of King Saud University - Engineering Sciences

Corrosion inhibition properties of the synergistic effect of 4-hydroxy-3-methoxybenzaldehyde and hexadecyltrimethylammoniumbromide on mild steel in dilute acid solutions

Synthesis, characterization and anticorrosion property of olive leaves extract-titanium nanoparticles composite

Journal	Journal of Adhesion Science and Technology
Publisher	Informa UK Limited
ISSN	0169-4243
Open Access	No