Now showing items 1-10 of 38
Effect of scandium on the structural and photocatalytic properties of titanium dioxide thin films
Pure and scandium doped-TiO2 thin films were prepared by the sol-gel process and coated by dip coating. The effects of scandium on the phase formation, optical properties and photoactivity of the TiO2 thin films were ...
Characterization of Zn0. 95Mn0.05O synthesized by polymeric precursors
This paper discusses the preparation and characterization of Zn 0.95Mn0.05O phase obtained by the polymeric precursor method for DMS applications. The as-obtained powders were calcined between 500 to 800°C and characterized ...
Organic matter and clay mineral crystallinity in soils of a topossequence on Basalt from Southern Brazil.
(In: MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 17., 2014, Ioannina. Natural organic matter: structure-dynamics innovative applications: book of abstracts. Ioannina: University os Ioannina, 2014. p. 124-125., 2014)
Confinement effects on Titanium Oxide nanostructures.
(Sociedade Brasileira de Pesquisas em Materiais.Campos do Jordão, 2013-09-29)
Titanium oxide is the most commonly used material for dye-sensitized solar cells. In such devices it is usually found as a nanostructured film, made by the agglomeration of several nanoparticles. The effects of nano-dimensionality ...
Pretreatment Impact On The Morphology And The Catalytic Performance Of Hybrid Heterodimers Nanoparticles Applied To Co Oxidation
(Elsevier Science BVAmsterdam, 2017)
Preparation and structural characterization of hybrid composites of semiconductor oxides with amorphous carbon
Organic/inorganic hybrids composites type have been reported as an alternative for the preparation of multifunctional materials with superior properties to those of individual constituents. In this work, hybrid composites ...
Mossbauer spectroscopy study of iron oxide nanoparticles obtained by spray pyrolysis
Mossbauer spectroscopy was used in this study to investigate magnetite nanoparticles, obtained by spray pyrolysis and thermal treatment under H-2 reduction atmosphere. Room temperature XRD data indicate the formation of ...
Conductive nanocomposites based on cellulose nanofibrils coated with polyaniline-DBSA via in situ polymerization
Cellulose nanofibrils (CNF) were extracted by acid hydrolysis from cotton microfibrils and nanocomposites with polyaniline doped with dodecyl benzenesulphonic acid (PANI-DBSA) were obtained by in situ polymerization of ...
Heavy metals availability and fractions in soil amended with biosolid composts
The heavy metals when linked to organic matter have a behavior in the soil that is still little known. This study aimed to evaluate the effect of sewage-sludge-based composts when incorporated in the soil, in relation to ...