Eco-friendly synthesis of nickel oxide nanoparticles using Avicennia Marina leaf extract: Morphological characterization and electrochemical application. (2022)

• Record Type: Journal Article
• Authors: Karpagavinayagam, P.; Emi Princess Prasanna, A.; Vedhi, C.
• Is Part Of: Materials today. Volume 48:Part 2(2022)
• Page Start: 136
• Page End: 142
• Publication Date: 2022
• Subjects: Green synthesis -- Avicennia Marina -- NiO-NPs -- FTIR -- FESEM -- TEM; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.04.183
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Wide-ranging application in various fields from biomedicine, catalysis and optoelectronic materials to sensors, and environmental pollution prevention by synthesising Metal oxide nanoparticles. In this present work Eco-friendly synthesis of Nickel Oxide Nanoparticles (NiO-NPs) using Avicennia Marina leaf extract in an aqueous medium. The prepared NiO-NPs were characterized by UV–Visible, FT-IR, X-ray diffraction, AFM, FE-SEM, TEM, and electrochemical techniques to find the band gap energy, functional group, grain size, morphology, and the structure, particle size respectively. UV–Vis absorption spectrum of nickel oxide nanoparticles (NiO-NPs) shows a peak in the region of 297 nm. The FTIR spectrum of NiO-NPs shows bands at 872 cm −1 and 466 cm −1 . From the FESEM results, the average size of NiO-NPs is seen to be in the range of 30–100 nm. Electrochemical studies were carried out to assess the redox behavior of NiO-NPs. The obtained results confirmed the formation of nickel oxide nanoparticles from the biomaterial leaf component. The methanol oxidation of NiO-NPs has been studied by voltammetry.