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Приказ резултата 11-20 од 23
Multisite luminescence of rare earth doped TiO2 anatase nanoparticles
(Materials Chemistry and Physics, 2012)
Eu3+, Sm3+ and Tb3+ ions have been incorporated into anatase TiO2 nanocrystals via hydrolytic sol gel method. Pure anatase phase was confirmed with XRD and TEM measurements. Band gap energies change slightly with rare earth ...
Sm3+ doped TiO2 nanoparticles synthesized from nanotubular precursors-luminescent and structural properties
(Journal of Luminescence, 2013)
We report on a new synthetic route for synthesis of Sm3+ doped TiO2 nanocrystals by shape transformation of hydrothermally treated titania nanotubes in the presence of Sm3+ ions. Shape and size of Sm3+ doped TiO2 nanocrystals ...
Surface modification of submicronic TiO2 particles prepared by ultrasonic spray pyrolysis for visible light absorption
(Journal of Nanoparticle Research, 2012)
Spherical, submicronic TiO2 assemblage with high specific surface area and controllable phase composition was prepared in the process of ultrasonic spray drying/pyrolysis in a wide temperature range (150-800 degrees C) by ...
Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation
(Radiation Physics and Chemistry, 2012)
Silver nanoparticles (AgNPs) were synthesized in situ by gamma-irradiation using poly(N-vinyl-2-pyrrolidone) (PVP) as a capping agent. The concentration, molecular weight and the structure (crosslinked and interpenetrated ...
Optical and structural properties of radiolytically in situ synthesized silver nanoparticles stabilized by chitosan/poly(vinyl alcohol) blends
(Radiation Physics and Chemistry, 2014)
In this study, the potential of chitosan/poly(vinyl alcohol) (CS/PVA) blends as capping agent for stabilization of Ag-nanoparticles (Ag NPs) during their in situ gamma irradiation induced synthesis was investigated. The ...
Characterization of silver/polystyrene nanocomposites prepared by in situ bulk radical polymerization
(Materials Research Bulletin, 2014)
Nanocomposites (NCs) with different content of silver nanoparticles (Ag NPs) embeded in polystyrene (PS) matrix were prepared by in situ bulk radical polymerization. The nearly monodisperse Ag NPs protected with oleylamine ...
Electronic structure and optical properties of CuWO4: An ab initio study
(Computational Materials Science, 2012)
Electronic structure and optical properties of copper tungstate CuWO4 were investigated using density functional theory with improved version of exchange potential suggested recently by Tran and Blaha (2009) [7] (TB-mBJ). ...
Copper nanoparticles with high antimicrobial activity
(Materials Letters, 2014)
Copper (Cu) hydrosol containing small nanoparticles (NPs) (similar to 5 nm) with narrow size distribution were used to investigate antimicrobial activity toward representative microorganisms of public concern (Escherichia ...
Structural, optical and photodegradation properties of pure and Fe-doped titania nanoparticles probed using simulated Solar light
(Elsevier, 2016)
We report the successful, low temperature synthesis of pure and Fe-doped titania nanoparticle (NP) powders, using organic Ti- and Fe-precursors. The properties of the synthesized titania based materials were obtained using ...
Gamma irradiation induced in situ synthesis of lead sulfide nanoparticles in poly(vinyl alcohol) hydrogel
(Radiation Physics and Chemistry, 2017)
In this study, the nanocomposites based on semiconductor lead sulfide (PbS) nanoparticles and poly (vinyl alcohol) (PVA) were investigated. The gamma irradiation induced in situ incorporation of PbS nanoparticles in ...