Abstract

MENDEZ-ARES, Roxana et al. Polimeric membranes loaded with zeolite for their future use in the adsorption of polluting gases. Rev Cub Quim [online]. 2021, vol.33, n.2, pp.69-90.  Epub Apr 26, 2021. ISSN 2224-5421.

In this work, were developed membranes of polyvinyl alcohol (PVA) loaded with a cuban natural zeolite for their potential application in CO2 adsorption. Those were characterized by scanning electron microscopy, FTIR spectroscopy with ATR and thermogravimetric analysis. It could be proven that it is possible to obtain membranes of PVA/zeolite that are flexible, homogeneous and with appropriate thermal stability. The importance of the quantity of water was evaluated added in the physical characteristics of the membranes. It could settle down that there are not significant interactions between the polymer and the zeolite in the compound materials. It was demonstrated that their thermal behavior depends on the quantity of added zeolite. The results obtained in the studies of static adsorption from CO2 to 25 oC suggest that the compound membranes PVA/zeolite can be good candidates like adsorbents of this gas for its employment in the purification of the air.

Keywords : PVA membranes; zeolite; clinoptilolite; characterization; CO2 adsorption.

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