title: Designing Supported Ionic Liquids (ILs) within Inorganic Nanosheets for CO₂ Capture Applications.
abstract: A new methodology was developed for the immobilization of ionic liquids (ILs) on α-zirconium phosphate (ZrP) and montmorillonite (MMT) single-layer nanosheets via a facile coassembly process. The coassembled inorganic nanosheet/1-n-butyl-3-methylimidazolium chloride (BMIMCl) hybrids were systematically characterized. The results showed that the ILs were successfully assembled with ZrP or MMT single-layer nanosheets to form an intercalated structure. The inorganic nanosheet/IL hybrids can serve as efficient CO2 absorbents. The CO2 sorption of BMIMCl could be made up to 21 times more efficient because of the high exposure of the functional groups of BMIMCl in the coassembled hybrids. CO2 was physically absorbed by the hybrids with a slow equilibrium time at lower temperatures, whereas higher temperatures allowed for faster diffusion and chemical absorption of CO2. The best CO2 capture capacities of the hybrids were 0.73 mmol/g at 60 °C for ZrP/BMIMCl and 0.42 mmol/g at 70 °C for MMT/BMIMCl.
authors: School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology , 219 Ningliu Road, Nanjing, Jiangsu 210044, China.|Department of Chemical & Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut , Storrs, Connecticut 06269, United States.|The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province/State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University , Guangzhou 510275, China.
authors: Yingjie
authors: Y
authors: Zhou
authors: Department of Chemical & Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut , Storrs, Connecticut 06269, United States.
authors: Jingjing
authors: J
authors: Liu
authors: The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province/State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University , Guangzhou 510275, China.
authors: Min
authors: M
authors: Xiao
authors: The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province/State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University , Guangzhou 510275, China.
authors: Yuezhong
authors: Y
authors: Meng
authors: Department of Chemical & Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut , Storrs, Connecticut 06269, United States.
authors: Luyi
authors: L
authors: Sun
keywords: CO2 capture; coassembly; immobilization; ionic liquids; α-zirconium phosphate