Javed R sheikh | Rashtrasant Tukdoji Maharaj Nagpur University, Nagpur (original) (raw)
Address: Nagpur, Maharashtra, India
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National Institute of Technology, Tiruchirappalli
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Papers by Javed R sheikh
LaFeO 3 (LFO) nanoparticles were prepared by microwave-assisted sol-gel combustion method with an... more LaFeO 3 (LFO) nanoparticles were prepared by microwave-assisted sol-gel combustion method with an aid of glycine as fuel. The calcined LFO sample was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), EDAX and UV-Vis absorption spectroscopy. Single-phase orthorhombic structure is confirmed by XRD, and data is well fitted using Rietveld refinement by Full-Prof suite. FTIR study displays vibrational modes related to orthoferrites perovskite LaFeO 3 . SEM images depict fine particles size, and stoichiometry of La, Fe and O in LFO is verified by EDAX. The photodegradation behavior of LFO was evaluated by the photocatalytic decolorization of the methylene blue under natural light as well as by UV irradiation for different time. To check the potential of LaFeO 3 as dielectric, dielectric constant as a function of frequency and temperature was studied. Dielectric constant is found to decrease with increase in frequency indicates dispersive behavior in low-frequency region. Temperature versus dielectric constant plots for LFO at 100 kHz give dielectric anomaly around 450°C. This anomaly may be due to antiferromagnetic transition (T N ) temperature of LFO. The present study depicts the potential of LFO to use as efficient photocatalyst and applicable dielectric materials. Graphical Abstract Very good quality and single-phase LaFeO 3 (LFO) nanoparticles were prepared first time by microwave-assisted sol-gel combustion method with an aid of glycine as fuel. The photodegradation behavior of LFO was
Conference Presentations by Javed R sheikh
In present work, multiferroic BiFeO 3 was synthesized by hydrothermal route. The rhombohedral str... more In present work, multiferroic BiFeO 3 was synthesized by hydrothermal route. The rhombohedral structure was confirmed X-ray diffraction pattern and data fitted with Reitveld refinement using Full-Prof software suite. SEM micrograph shows flake like morphology. Frequency and temperature dependence of dielectric constant and dielectric loss were studied and detected enhancement in dielectric constant. The magnetic measurement indicates antiferromagnetic nature of BFO. P-E curve shows ferroelectic hysteresis loop with remanent polarization (2Pr) 0.3518 μC/cm 2 . The dielectric anomaly observed near T N can be assigned to magnetoelectric coupling which is useful in device application.
LaFeO 3 (LFO) nanoparticles were prepared by microwave-assisted sol-gel combustion method with an... more LaFeO 3 (LFO) nanoparticles were prepared by microwave-assisted sol-gel combustion method with an aid of glycine as fuel. The calcined LFO sample was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), EDAX and UV-Vis absorption spectroscopy. Single-phase orthorhombic structure is confirmed by XRD, and data is well fitted using Rietveld refinement by Full-Prof suite. FTIR study displays vibrational modes related to orthoferrites perovskite LaFeO 3 . SEM images depict fine particles size, and stoichiometry of La, Fe and O in LFO is verified by EDAX. The photodegradation behavior of LFO was evaluated by the photocatalytic decolorization of the methylene blue under natural light as well as by UV irradiation for different time. To check the potential of LaFeO 3 as dielectric, dielectric constant as a function of frequency and temperature was studied. Dielectric constant is found to decrease with increase in frequency indicates dispersive behavior in low-frequency region. Temperature versus dielectric constant plots for LFO at 100 kHz give dielectric anomaly around 450°C. This anomaly may be due to antiferromagnetic transition (T N ) temperature of LFO. The present study depicts the potential of LFO to use as efficient photocatalyst and applicable dielectric materials. Graphical Abstract Very good quality and single-phase LaFeO 3 (LFO) nanoparticles were prepared first time by microwave-assisted sol-gel combustion method with an aid of glycine as fuel. The photodegradation behavior of LFO was
In present work, multiferroic BiFeO 3 was synthesized by hydrothermal route. The rhombohedral str... more In present work, multiferroic BiFeO 3 was synthesized by hydrothermal route. The rhombohedral structure was confirmed X-ray diffraction pattern and data fitted with Reitveld refinement using Full-Prof software suite. SEM micrograph shows flake like morphology. Frequency and temperature dependence of dielectric constant and dielectric loss were studied and detected enhancement in dielectric constant. The magnetic measurement indicates antiferromagnetic nature of BFO. P-E curve shows ferroelectic hysteresis loop with remanent polarization (2Pr) 0.3518 μC/cm 2 . The dielectric anomaly observed near T N can be assigned to magnetoelectric coupling which is useful in device application.