Buscar
Mostrando ítems 11-20 de 389
Comparative study of the physicochemical properties and photocatalytic activity of modified mcm-41 synthesized by direct (one-step) incorporation and impregnation
(Sociedade Brasileira de Química, 2016-03)
MCM-41 structures were synthesized and modified by direct (one-step) incorporation (DI) and wet impregnation (WI) methods. The solids were characterized by XRF, XRD, N2 adsorption and UV-Vis DR, and catalytically evaluated ...
Efecto del co-dopado con iones de Sm3+ y Li+ sobre las propiedades estructurales y luminiscentes de TiO2 nanocristalino sintetizado por irradiación de microondas
(2017-11-23)
Las propiedades estructurales y luminiscentes de polvos de TiO2, TiO2:Sm3+ y LiXTiO2:Sm3+ sintetizados por irradiación de microondas utilizando alcohol bencílico como solvente fueron estudiados en un intervalo de recocido ...
Hydrothermal-electrochemical CaTiO3 coatings as precursor of a biomimetic calcium phosphate layer
(2007)
The hydrothermal-electrochemical method was used to coat Ti and Ti6Al4V with calcium titanate CaTiO3. The film exhibited a plate-Re structure with several isolated pinholes around 100 nm in diameter. These coated samples ...
Synthesis, characterization and selective oxidation properties of Ti-containing mesoporous catalysts
(Elsevier Science, 2006-01-17)
Ti-containing mesoporous catalysts with MCM-41 structure have been successfully prepared by direct hydrothermal synthesis. These mesoporous materials were compared with pure siliceous MCM-41 synthesized at the same conditions. ...
Comparison of Ti–35Nb–7Zr–5Ta and Ti–6Al–4V hydrofluoric acid/magnesium-doped surfaces obtained by anodizing
(2020-08-01)
Objectives: Development of a new generation of stable β alloy, free of aluminum or vanadium and with better biological and mechanical compatibility and evaluate the surface properties of Ti–6Al–4V and Ti–35Nb–7Zr–5Ta after ...
TiO2 nanotubes improve physico-mechanical properties of glass ionomer cement
(2020-03-01)
Objectives: The aim of this study was to determine the physico-mechanical properties of a high viscosity glass ionomer cement (GIC) reinforced with TiO2 nanotubes (TiO2-nt). Methods: TiO2-nt was incorporated into the GIC ...
Photocatalytic degradation of organic dyes using nickel oxide incorporated titania nanocatalyst
(Desalination Publications, 2020)
In this present work, two-step methods were executed to prepare TiO2/NiO nanocomposite material. The selected area electron diffraction and X-ray diffraction pattern were interpreted and their fallouts demonstrate the ...