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Mono-dispersed ceria (CeO2) hollow nanospheres about 400 nm have been prepared via a facile one-step hydrothermal method, wherein cerium nitrate hexahydrate (Ce(NO3)3·6H2O) was used as cerium sources with the assistance of polyvinylpyrrolidone (PVP) in the ethylene glycol aqueous solution. X-ray diffraction, X-ray photoelectron spectra, scanning electron microscope, transmission electron microscope,...
Dandelion-like V2O3 microspheres with core-shell structures have been successfully prepared by a facile hydrothermal method without using any surfactant and template. The as-synthesised product is characterised by various techniques like X-ray diffraction, X-ray photoelectron spectroscopy and scanning electron microscopy. The core-shell microspheres have an average diameter of about 2 μm, where the...
We have investigated the properties of Mn-doped ZnO nanocrystalline films grown on zinc foil by hydrothermal method. The microstructure, optical and magnetic properties of these films have been characterized by SEM, XRD, XPS and UV-vis spectrum. The XPS spectra show the doping manganese exists as Mn2+. From UV-vis spectra, the shift in band gap and greater reflectivity can be observed due to Mn doping...
Crystals of K3WO3F3 in low temperature ferroelectric modification, space group Cm, have been created by chemical synthesis. Crystal structure of this modification has been found by Reitveld method. Electronic parameters of the constituent element core levels have been measured with X-ray photoelectron spectroscopy. Chemical bonding in WO3F3 groups have been discussed.
Two-step hydrothermal method was developed to prepare B-doped TiO2 nanotubes (BTNTs). BTNTs was characterized by TEM, XRD, XPS, FT-IR, UV-Vis spectroscopy, its photocatalytic activity was evaluated by the degradation of methyl orange (MO) aqueous solution both under UV light and visible light irritation. The results from TEM indicated that BTNTs with diameter of 10-20 nm and length of several mum...
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