The continuous expansion of civil society, with the change in lifestiles and resources use, leads necessarily to an higher impact of the industrial facilities on the surrounding environments. As it is well known, nowadays CO2 emissions are still one of the major effects of industrial pollution. The aim of this work is to show that composites zeolite/carbon materials could act as useful CO2 adsorbants in the field of environmental preservation. Examples of such materials are widely used for the most diverse application, ranging from stabilizers for electrochemical batteries to enhance in thermal energy storage, or also for treatment of industrial waste water [1]. Usually, the approach that is used to obtain such composites is to disperse a precise amount of carbon from different sources (palm oil, coal, rice hulls, …) directly on the zeolite support. Experimental/methodolgy. Here we propose a direct synthesis of the NaY zeolite with 3 different carbon sources (activated carbon - AC, carbon black - CB and graphite - GP) by hydrothermal method aimed at obtaining microcrystal-sized and nanocrystal-sized samples. In general, all ours samples have been characterized by SEM, FT-IR, XRD, TGA, N2-physisorption and TPD techniques. Results and discussion. Similar approaches already showed enhanced CO2 adsorption properties in the case of carbon black composite with a zeolite 13X [2], while carbon black itself usually needs to be activated by surface modification (or coating) with an adequate CO2 adsorbant [3]. This is consistent with ours result, as the pure carbon phases that have been used for the composites didn’t show any CO2 adsorption property at the investigated temperature before being coupled with the NaY zeolite. After confirming the Faujasite crystalline phase of each composite by XRD, SEM pictures showed an higher average diameter of the NaY-AC with respect to the other samples. However, TPD measurements of this sample exhibits amounts of adsorbed CO2 that are quite comparable to the pure NaY zeolite, while in the case of the other composites this increase showing higher CO2 adsorption performances for the NaY-CB and finally the best for the NaY-GP composite.