Nanostructured polyethylenimine decorated palygorskite for reversible CO2 capture

作者：Ma, Rui^*; Hu, Pan; Xu, Li; Fan, Jinxu; Wang, Yutang; Niu, Muqian; Tao, Shenming

来源：Materials Express, 2017, 7(4): 253-260.

DOI：10.1166/mex.2017.1374

• Palygorskite
• Carbon Dioxide
• Adsorption
• Polymer Amination

Natural nanostructured clay mineral palygorskite (or attapulgite, ATP) is found to be a superior support for the immobilization of polyethylenimine (PEI, Mw = 17000) for CO2 capture at 25 degrees C. The easily prepared solids are subsequently characterized by FT-IR, FE-SEM, N-2 adsorption/desorption isotherms, TG/FTIR, TG/DSC and CO2 adsorption determination to monitor their properties before and after PEI surface modification. The adsorbent is proved to have a good stability, high CO2 adsorption capacity (39.03 mg CO2/g adsorbent) and regenerability at room temperature and atmospheric pressure.

• 出版日期2017-8
• 单位中国地质大学（北京）