Amine‐functionalized natural zeolites prepared through plasma polymerization for enhanced carbon dioxide adsorption
Satriyo Krido Wahono, Adid Adep Dwiatmoko, Alex Cavallaro, Sathish C. Indirathankam, Jonas Addai‐Mensah, William Skinner, Ajayan Vinu, Krasimir Vasilev
Abstract
Abstract Solution‐based amine absorption technologies have been widely applied for CO 2 capture, but they have several drawbacks. This paper reports on the synthesis of the first solid‐state amine adsorbent prepared through a simple plasma polymerization and deposition on physicochemically modified natural mordenite–clinoptilolite zeolite. The plasma deposition of amine polymer under certain conditions resulted in a significant increase in surface area‐weighted CO 2 adsorption capacity as the natural zeolite. The strength of the interaction between CO 2 and the adsorbent was weaker for the plasma polymer‐modified zeolite than without the plasma coating, which may facilitate regeneration. Both indications make the amine plasma polymer‐based zeolite adsorbent a good candidate for CO 2 adsorption and separation.