SÍNTESIS, CARACTERIZACIÓN Y ESTUDIO DE LAS PROPIEDADES DE PLANTILLAS PREFABRICADAS A BASE DE REDES ZEOLÍTICAS DE IMIDAZOLATO ZIF-67, SOPORTADAS EN A-ALÚMINA

Abstract

The climate change is one of the most challenging problems we are currently facing, since greenhouse gas emissions are the main culprits. Although the government is working on the norms that regulate the emission of greenhouse gases emitted by industries, it is a reality that is still far from a prompt solution to this problem. Research groups have chosen to create and work with nanoporous materials that transfer the adsorption of certain gases such as CO2. The CO2 has stood out as one of the main polluting gases that affects the ozone layer due to the great daily use of this gas. It is then that membrane technology arises, where up to now, ceramic membranes have been the most studied and reported with favorable results due to their heat retention capacity. This membrane technology offers opportunities in favor of the capture and storage of CO2 as a future application in gases emitted by different industries. On the other hand, the use of imidazolate zeolitic structures has been studied for more than a decade for applications such as gas separation, catalysts, these structures are one of the branches of organic metallic networks with zeolite-type topologies. ZIFs are structures that are built by joining metallic nodes (generally zinc or cobalt) joined to the imidazole binder or some of its derivatives, theoretically unlimited combinations have produced ZIF structures with various topologies. Recent research focuses on the synthesis of voids through different methods such as the use of surfactants, calcination at high temperatures in an oxygen or argon environment, and assembly strategies that allow the surface area to increase and thus improve the properties of these. porous materials. That is why in this work the solvothermal synthesis of holes ZIF-67 supported on a ceramic membrane of Al2O3 by calcination at 350°C was proposed to study the change in the properties and in the structure and have a possible future in the adsorption of CO2 from the environment