화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.9, 2747-2755, September, 2016
DOI10.1007/s11814-016-0092-8  Export Citation
Synthesis of metal organic framework (MOF-5) with high selectivity for CO2/N2 separation in flue gas by maximum water concentration approach
Ning Jiang1, 2, Zhiyong Deng1, 2, †, Shaoying Liu1, 2, Congming Tang3, and Gongying Wang1, 2, †
  • 1Chengdu Institute of Organic Chemistry (Chengdu Organic Chemicals Co., Ltd.), Chinese Academy of Science, Chengdu, 610041, P. R. China
  • 2University of Chinese Academy of Science, Beijing, 100049, P. R. China
  • 3Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, 637002, P. R. China
E-mail:,
Water plays a crucial role in the synthesis mechanism of metal organic framework-5 (MOF-5). Synthesized MOF-5 with good phase structure and large specific surface area is largely determined by an important synthesis factor: the total water concentration of the initial synthesis solution (Ctw). An understanding of the effects of different and high Ctw on the synthesis of MOF-5 and the investigation of the maximum Ctw suitable for the synthesis of MOF-5 are important to guide the synthesis of MOF-5. Through the research of the maximum Ctw, a favorable synthetic approach was established which could realize the synthesis of MOF-5 with fine performance on CO2 adsorption and separation. The research results show that the maximum Ctw could be as high as 1,440mmol/L, and synthesized MOF-5 still has a good phase structure and a large specific surface area of 2,136m2/g (BET). Synthesized MOF-5 by the maximum Ctw exhibits a high CO2 adsorption capacity of 2.5mmol/g and a low N2 adsorption capacity of 0.2mmol/g at 298 K and 100 kPa. More importantly, synthesized MOF-5 by the maximum Ctw exhibits a high selectivity for CO2/N2 of 18-22 at 298 K and 20-130 kPa in simulated flue gas.
Keywords:Metal Organic Framework-5 (MOF-5);Water;CO2;Adsorption;Separation
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