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Liwei Sun,Meilin Yin,Zhen Li,Shaokun Tang 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.112 No.-
To alleviate environment issues derived from CO2 emission, developing effective and economical methodsfor CO2 capture has attracted much attention for decades. Metal-organic frameworks possess highporosity and stability, which is favorable to the adsorption of small molecules. Herein, an aluminumbasedMOF, aluminum terephthalate [MIL-53(Al)], was synthesized with H2O and N,N0-dimethylformamide as co-solvent via microwave-assisted method for CO2 adsorption. The parametersincluding pre-mixing mode, microwave temperature, microwave power and reaction time were variedto study their influences on crystal structure, morphology and CO2 adsorption capacity of MW-MIL-53(Al). Wherein, MW-MIL-53(Al) prepared with pre-mixing mode of stirring at 130 C, 200 W and 3 h presentshigh crystallinity and rod-like morphology. The synthesized MW-MIL-53(Al) possesses relativelyhigh BET surface area (961 m2/g), pore volume (0.46 cm3/g) and thermal stability (up to 480 C), andits CO2 adsorption capacity is 2.16 mmol CO2/g adsorbent under 25 C and 0.1 MPa, which is higher thanCS-MIL-53(Al) synthesized via conventional solvothermal method at 130 C for 48 h.