Nowadays, the rise of CO2 emissions in the air plays an important role in global warming. Therefore, it is important to control the concentration of carbon dioxide. The binary system was prepared to absorb carbon dioxide gases. This system consists of a deep eutectic solvent and morpholine. A deep eutectic mixture was synthesized with ammonium chloride as a hydrogen bond acceptor and glycerol as a hydrogen bond donor. The HBA/HBD were mixed at room temperature, and the molar ratios of 1:6. The volume ratios of Morpholine/DES were taken as 1:1. The absorption capacity of DES/morpholine was evaluated in 1 hour. The results showed that this type of binary system has selective capture of the carbon dioxide.