SYNTHESIS, CHARACTERIZATION AND APPLICATION OF METAL ORGANIC FRAMEWORKS IN THE ADSORPTION OF DIMETHYLAMINE

• Autores: Sun-Kou, María del Rosario, Bravo Hualpa, Fabiola, Beltrán Suito, Rodrigo, Samanamu, Christian, Picasso Escobar, Gino
• Formato: artículo
• Fecha de Publicación: 2014
• Institución: Sociedad Química del Perú
• Repositorio: Revista de la Sociedad Química del Perú
• Lenguaje: español
• OAI Identifier: oai:rsqp.revistas.sqperu.org.pe:article/153
• Enlace del recurso: http://revistas.sqperu.org.pe/index.php/revistasqperu/article/view/153
• Nivel de acceso: acceso abierto
• Materia: Metal-organic frameworks; MOF; dimethylamine; adsorption; Armazones metal orgánicos; dimetilamina; adsorción

This study investigated the removal of dimethylamine (DMA) by an adsorption mechanism using metal-organic frameworks (MOFs). The synthesis of the MOFs was performed by solvothermal methods. The characterization of the MOF obtained was made by attenuated 1 total reflectance spectroscopy (ATR), proton nuclear magnetic resonance spectroscopy ( HNMR), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX) and scanning electron microscopy (SEM). The XRD diffractograms allowed to identify the structure of MOF as Dashkovaite, which has the molecular formula Mg(HCOO) .2H O; while the ATR studies revealed the presence of carbonyl group as most important functional group in the MOF structure. The morphological analysis showed that the MOF crystalline particles had a hexagonal shape, formed from filaments of around 7,5-8 microns in length. Adsorption experiments showed that the MOF had a high adsorption capacity of DMA (q = e -1 307,96 mg.g ). The kinetic data were fitted to the pseudo second order equation and the Elovich equation, while the adsorption isotherm was fitted to the Temkin equation and the Dubinin - Radushkevich equation, processes related to chemisorptions preferably on a heterogeneous surface.