A5100640277- Magnetic Properties and Synthesis of Ferrites
- Multiferroics and related materials
- Surfactants and Colloidal Systems
- Chemical and Physical Properties in Aqueous Solutions
- Electromagnetic wave absorption materials
- Thermodynamic properties of mixtures
- Magneto-Optical Properties and Applications
- Photochemistry and Electron Transfer Studies
- Advancements in Battery Materials
- Analytical Chemistry and Chromatography
- Ionic liquids properties and applications
- Protein Interaction Studies and Fluorescence Analysis
- Electrostatics and Colloid Interactions
- Drug Solubulity and Delivery Systems
- Environmental Chemistry and Analysis
- Crystallization and Solubility Studies
- Pharmacological Effects of Natural Compounds
- Monoclonal and Polyclonal Antibodies Research
- Advanced Condensed Matter Physics
- Pneumonia and Respiratory Infections
- Molecular Sensors and Ion Detection
- Spectroscopy and Quantum Chemical Studies
- Inhalation and Respiratory Drug Delivery
- Adsorption and biosorption for pollutant removal
- Advanced Proteomics Techniques and Applications
Guru Nanak Dev University
2015-2025
Indian Institute of Science Bangalore
1990-2014
We show that the hybrids of single-layer graphene oxide with manganese ferrite magnetic nanoparticles have best adsorption properties for efficient removal Pb(II), As(III), and As(V) from contaminated water. The nanohybrids prepared by coprecipitation technique were characterized using atomic force scanning electron microscopies, Fourier transformed infrared spectroscopy, Raman X-ray diffraction, surface area measurements. Magnetic character was ascertained a vibrating sample magnetometer....
The effect of Ca2+ ions doping on the structure, magnetic properties, and surface morphology Sr1-xCaxFe12O19 (x = 0.0 to 0.5 with step size 0.1) hexaferrite nanoparticles synthesized using sol–gel auto-combustion technique was investigated in current study. phase purity samples is confirmed by XRD data plots up x 0.2, after which α-Fe2O3 observed as a secondary all concentrations. micrographs from FESEM show that increase concentration dopant, average grain increases ≈125 nm ≈240 nm....
We report the synthesis of Ba0.5Sr0.5ZnxZrxFe12-2xO19 (x = 0.00–1.00) samples using sol–gel auto combustion method. The Rietveld refinement XRD data indicates a) pure phase formation, b) increase in lattice parameters with composition and c) absence undesirable phases such as α–Fe2O3, BaCO3 SrCO3. FESEM TEM micrographs reveal an grain size 'x'. broadening Raman peaks without any peak shift all that Zn2+/Zr4+ions are incorporated into Ba0.5Sr0.5Fe12O19 altering local structure. Magnetic...
Abstract In this article, novel M-type hexaferrites SrCo x Ni Fe 12−2x O 19 were synthesized using the sol–gel method. The phase structure was characterized by x-ray diffraction, grain morphology investigated from scanned electron micrographs, and dielectric/electric/impedance characteristics analyzed in frequency range of 100 Hz to 2 MHz. X-ray diffraction (XRD) revealed formation without any secondary phase. size distribution significantly affected Co-Ni dopants there an observation...
The apparent molar volumes, adiabatic compressibilities, and viscosities of glycine, dl-α-alanine, dl-α-amino-n-butyric acid, l-valine, l-leucine, in aqueous solutions cadmium chloride, CdCl2, at different concentrations have been determined the temperature range (288.15 to 318.15) K from density, sound velocity, time flow measurements, using a vibrating-tube digital densimeter, ultrasonic multifrequency interferometer, Ubbelohde type capillary viscometer attached with an automatic viscosity...
SrFe12O19 samples were initially prepared using sol-gel auto-combustion method and calcined from 500 to 1100°C (for 6 h). XRD data established the phase formation temperature of SrM be ≈1000°C. Thereafter, effect Zn2+-Zr4+ co-dopant on magnetic structural properties SrZnxZrxFe12-2xO19 (x = 0.00–1.00) between 900–1100°C was investigated. shows that cell volume increases (from 690.45Å3 0.00) 705.72Å3 1.00)) while crystallite size decreases 123.9 nm 62.3nm at 1000°C. The Rietveld refinement...
M-type barium hexaferrite (BHF) is frequently used for permanent magnet preparation. Herein, we have synthesized BHF via sol–gel-auto-combustion route using Jamun pulp which perform multiple functions such as natural fuel, green reducing agent and ecofriendly chelating agent. The effect of concentration (10–60 g/100 mL water) on structural, morphological properties, coercivity the saturation magnetization has been studied first time. X-ray diffraction (XRD) analysis confirmed phase purity...
Abstract The objective of the present study is to evaluate binding properties active pharmaceutical ingredients with mixture surfactants aim reducing amount as well excipient for formulations and drug delivery applications. Therefore, a interactions between ionic surfactant sodium cholate (SC) cationic Gemini (12-2-12) in presence propanolol hydrochloride (PH) aqueous solution was carried out using conductance measurements. effect temperature composition evaluated critical micelle...
Abstract The micellization behaviour of sodium dodecyl sulphate, dodecylbenzenesulfonate, hexadecyltrimethylammonium bromide, tetradecyltrimethylammonium and cetylpyridinium chloride in water aqueous solutions polyethylene oxide (PEO, molecular weight = 100,000) having concentrations (0.005–0.04 %, w/v) has been studied at different temperatures (288.15–318.15 K) using conductivity, surface tension, viscosity methods. From conductivity measurements various micellar parameters, like critical...
The micellar behaviour of similar hydrophobic chain length conventional (cetyltrimethyl ammonium bromide, CTAB; cetyl pyridinium chloride, CPC; cetyldimethylbenzyl C16BCl) and gemini surfactant (16-2-16) in water polar non-aqueous solvents has been investigated the temperature range 288.15–318.15 K with help conductivity measurements. method proposed by Carpena et al. used to analyse conductivity–concentration determine micellization parameters using critical micelle concentration (CMC)...