CO2 adsorption behavior of microwave synthesized zeolite beta

Abstract Zeolite beta was successfully synthesized by direct synthesis with addition of seeds under microwave irradiation. CO 2 adsorption properties on the microwave synthesized zeolite beta were investigated at constant temperature 40 °C and absolute pressure 1 atm which compared with zeolite beta synthesized by the conventional hydrothermal method. Microwave synthesized zeolite beta showed higher CO 2 adsorption capacity than that of hydrothermal synthesized zeolite beta. Even the surface area of microwave synthesized zeolite beta (463 m 2 /g) was similar with hydrothermal synthesized one (482 m 2 /g), higher aluminum contents and the less hydrophilicity of microwave synthesized zeolite beta contributed to the higher adsorption capacity and selectivity of CO 2 than those of hydrothermal synthesized one, respectively.