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Synthesis and physicochemical characterization of a novel adsorbent based on yttrium silicate: A potential material for removal of lead and cadmium from aqueous media
(2020-08-01)
A new metallosilicate based on yttrium was synthesized and characterized by XRD, FT-IR, 29Si MAS-NMR, and 89Y MAS-NMR. The mixed framework of the material was confirmed by the detection of distinct chemical shift groups ...
Structural Characterization of Rare-Earth Doped Yttrium Aluminoborate Laser Glasses Using Solid State NMR
(AMER CHEMICAL SOC, 2009)
The structure of laser glasses in the system (B(2)O(3))(0.6){(Al(2)O(3))(0.4-x)(Y(2)O(3))(x)} (0.1 <= x <= 0.25) has been investigated by means of (11)B, (27)Al, and (89)Y solid state NMR as well as Y-3d core-level X-ray ...
Structural models for yttrium aluminium borate laser glasses: NMR and EPR studies of the system (Y(2)O(3))(0.2)-(Al(2)O(3))(x)-(B(2)O(3))(0.8-x)
(ROYAL SOC CHEMISTRY, 2011)
The structure of laser glasses in the system (Y(2)O(3))(0.2){(Al(2)O(3))(x))(B(2)O(3))(0.8-x)} (0.15 <= x <= 0.40) has been investigated by means of (11)B, (27)Al, and (89)Y solid state NMR as well as electron spin echo ...
Síntesis y caracterización de líquidos iónicos para la remoción de iones metálicos de soluciones acuosas
(2016-03-11)
Se sintetizaron líquidos iónicos con cadena alifática de 6 y 8 carbonos con aplicación para
la remoción de cationes de metales pesados, donde los líquidos iónicos poseen la fórmula
general C+ A-, donde C+ representa un ...
Estudios de RMN del dominio sensor de calcio del intercambiador de Na+ /Ca2+ de Drosophila melanogaster
(Universidad Nacional de ColombiaMedellín - Ciencias - Doctorado en BiotecnologíaFacultad de CienciasMedellín, ColombiaUniversidad Nacional de Colombia - Sede Medellín, 2020)
Los intercambiadores de sodio-calcio (Na+ /Ca2+ exchangers, NCX) componen una amplia familia de intercambiadores presentes en casi todos los organismos, estando involucrados en la homeostasis celular del Ca2+. Una de estas ...
Synthesis, antibacterial activity and DNA interactions of lanthanide(III) complexes of N(4)-substituted thiosemicarbazones
Este articulo reporta la síntesis y caracterización detallada de seis nuevos complejos lantánidos de La(III), Eu(III) y Nd(III) con tiosemicarbazonas N(4)-sustituidas derivadas del 2-carboxibenzaldehído. Los estudios ...
Structural features of phosphate and sulfate modified zirconia prepared by sol-gel route
(Springer, 2004-10-01)
This paper describes the effect of sulfate, phosphate and nitrate complexing ligands on the structural features of amorphous xerogels and on the crystallization of metastable zirconia phases during the xerogel-ceramic ...
Evolution of rheological properties and local structure during gelation of siloxane-polymethylmethacrylate hybrid materials
(Springer, 2006-03-01)
Hybrid siloxane-polymethylmethacrylate (PMMA) nanocomposites with covalent bonds between the inorganic (siloxane) and organic (polymer) phases were prepared by the sot gel process through hydrolysis and polycondensation ...