화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.36, No.10, 1708-1715, October, 2019
DOI10.1007/s11814-019-0360-5  Export Citation
Synthesis of bi-functionalized ionic liquid - mesoporous alumina composite material and its CO2 capture capacity
Liwei Sun1, and Shaokun Tang1, 2, †
  • 1Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, China
  • 2Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
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Bi-functionalized ionic liquid (IL) - mesoporous alumina (MA) composite material was synthesized and used for CO2 capture. Ordered mesoporous alumina was synthesized by self-assembly method with aluminum isopropoxide as aluminum source. Then bi-functionalized ionic liquid 1-methoxyethyl-3-methyl imidazole glycinate ([MOEmim][Gly]) was immobilized on mesoporous alumina by ultrasonic-assisted impregnation method. Ordered mesostructure of alumina keeps well in the composite material. Compared with bi-functionalized ionic liquid, thermal stability of the composite material greatly improved. Finally, CO2 capture capacity of IL-MA composite material was studied under different temperatures. On the basis of both capture capacity and capture rate, 40 °C is the optimal temperature. The capture capacity is 1.42mol·mol IL-1 - equivalent to 144mg·g sorbent-1, which is higher than IL or MA alone. Furthermore, the capture capacity of composite material almost maintains constant after eight capture-regeneration cycles.
Keywords:Ionic Liquid;Mesoporous Alumina;Immobilization;Impregnation;Carbon Dioxide Capture
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