Solid State Synthesis of LiNiO2

Bimetallic oxide nanomaterials are synthesized by solid state combustion route integrates the synthetic chemistry. Simply, burning of two metal oxides in presence of polymer fuel for its bimetallic oxide nanomaterials. Nanosized lithium niobate material is prepared by self-propagating combustion methods using polymer as a fuel. Lithium oxide and nickel oxide with polyvinyl alcohol was ignited in an open atmosphere for few minutes to form lithium niobate residue. As prepared lithium niobate sample was well characterized for its structure by employing powder X-ray diffraction (XRD) tool. The morphology of as prepared lithium niobate material was studied by Scanning Electron Micrograph (SEM) tool. Fourier Transform infrared (FTIR) spectral study was undertaken to know the bonding in the prepared bimetallic oxide sample

Green Synthesis and Characterization of Silver Nanoparticles using Piper Betel Leaf Extract

Green synthesis of nanoparticles by biological reduction method using plant extract is recent development in synthetic chemistry. The green method of nanoparticles is easy, efficient and eco-friendly on comparison with other methods. Silver nanoparticles are synthesized by biological reduction of silver nitrate. Betle leaf extract was used to reduce the silver salt in to its silver nanoparticles. As prepared silver nanoparticles sample was characterized for its structure by employing powder X-ray diffraction (XRD) tool. The morphology of said metal nanoparticle was studied by Scanning Electron Micrograph (SEM) tool. Fourier Transform infrared (FTIR) spectral study was undertaken to know the bonding in the prepared silver sample. Formation of Ag particles was confirmed by energy dispersive X-ray analysis (EDX) study.Key words: Green synthesis, nanoparticle, Betle leaf extract, XRD, SEM, FTIR, EDX* Author for correspondence:  [email protected]

Synthesis and Characterization of Nanosized Zirconium Titanate Dispersed Polyaniline Nanocomposite

The recent development in the synthesis of bi-metal oxide nanomaterials through a new synthetic technique upgrades the science and technology of nanoscale materials. Zirconium titanate (ZrTiO4) is synthesized by solid-state combustion reaction usingZrO2 and TiO2 at high temperature.ZrTiO4nanomaterial dispersed polyaniline to form its nanocomposite (ZrTiO4-PANI) is carried out by in-situ polymerization of aniline using ammonium peroxide as an oxidising agent. ZrTiO4-PANI nanocompositeis well characterized by various characterization tools. Structural characterization is carried out by X-ray diffraction (XRD) andmorphology by Scanning Electron Micrograph (SEM) tool. The bonding nature of the sample was studied by Fourier transform Infrared (FT-IR). Presence of  metals like Zr and Ti in the nanocomposite was confirmed by Energy Dispersive X-ray microanalysis (EDX) study

Synthesis and Characterization of Silver Doped Zinc Oxide Nanoparticle from Beetle Leaf Extract- Evaluation of Antimicrobial Activity Against Human Pathogenic Bacteria and Fungi

Abstract: Plants or natural resources have been found to be a good alternative method for nanoparticles synthesis. In this study, silver doped zinc oxide nanoparticles (AgZno4NPs) synthesized from Piper betle leaves extract were investigated for their antibacterial and antifungal activity. ZnO nanoparticles were prepared from the reduction of Zinc oxide and NaBH4 was used as reducing agent, later doped with silver nitrate. Silver doped zinc nanoparticles were mixed thoroughly and subjected for characterization studies. Prepared nanoparticles were characterized by Visual inspection, Ultraviolet-visible spectroscopy (UV), Fourier transform infrared Spectroscopy (FT-IR), Transmission Electron Microscopy (TEM) techniques. Antimicrobial activities of the synthesized silver nanoparticles were tested against Staphylococcus aureus ATCC 25923, Salmonella typhi ATCC 14028, Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 27853. UV–Vis spectrum of reaction mixture showed strong absorption peak with centering at 400 nm. The FT-IR results imply that Ag-Zn NPs were successfully synthesized and capped with bio-compounds present in P. betle and particle size ranging from &lt;100nm. The result revealed that AgZn-Extract NPs showed 12.78±0.64 mm zone of inhibition against S. typhi, whereas streptomycin (positive control) showed maximum 15.15±0.40 mm zone of inhibition for S.mutans. Again, maximum zone of inhibition found for S. mutans. The results obtained by this study can’t be directly extrapolated to human; so further studies should be undertaken to established the strong antimicrobial activity of Ag-Extract NPs for drug development program</jats:p

Biosynthesis, Characterisation and Thermal study of Graphine Oxide-TiO2 nanocomposite using Ocimum tenuflorum leaf extract

Abstract: Blend of nanomaterials and its composite utilizing plant based item incorporates the manufactured innovation and subsequently different properties and applications. The principal a piece of the work is to combine naomaterials utilizing ocimum tenuflorum plant extricate for organic decrease response in ecofriendly framework. At first graphine oxide (GO) is arranged chemicaly and TiO2 adjusted GO nanocomposite (TiO2-GO NC) was ready by bioreduction utilizing ocimum tenuflorum plant remove. The construction of as pre-arranged examples very much was portrayed utilizing X-beam diffraction (XRD) apparatus. Examining Electron Micrograph (SEM) apparatus is utilized to concentrate on the morphology of the example. Metallic perception in the example was researched by EDAX design. Shifted holding nature of the bioderived nanocomposite is concentrated on by Fourier change infrared (FT-IR) instrumentation. Warm and electrical investigations of the examples are likewise under taken to know the warm electrical way of behaving. UV absorbance investigation of the said test is additionally attempted. Keywords: Graphine Oxide, Ocimum Tenuflorum, XRD, SEM, FTIR, UV-Vis.</jats:p

Microwave-assisted route for synthesis of nanosized metal oxides

Microwave-assisted route for the synthesis of nanomaterials has gained importance in the field of synthetic technology because of its faster, cleaner and cost effectiveness than the other conventional and wet chemical methods for the preparation of metal oxide nanoparticles. In the present work, synthesis of metal oxide nanoparticles viz., γ-Fe2O3, NiO, ZnO, CuO and Co-γ-Fe2O3 were carried out by microwave-assisted route through the thermal decomposition of their respective metal oxalate precursors employing polyvinyl alcohol as a fuel. The metal oxide nanoparticles are then characterized for their size and γ to α (in γ-Fe2O3) transition and structure by employing powder X-ray diffraction (XRD) pattern, high-temperature X-ray diffraction (HTXRD) pattern and Fourier transform infrared (FT-IR) spectral studies. The morphology of the samples ranged from nanorods to irregular-shaped particles for different metal oxide samples on the basis of scanning electron microscopy and transmission electron microscopy images. Frequency-dependent dielectric study of the ferrite samples (γ-Fe2O3 and Co-Fe2O3) showed a similar behaviour, where the dielectric constant decreased rapidly with increase in frequency. Possible explanation for this behaviour is given