Coagulation of Chitin and Cellulose from 1-Ethyl-3-methylimidazolium Acetate Ionic-Liquid Solutions Using Carbon Dioxide

Authors

  • Dr. Patrick S. Barber,

    1. Center for Green Manufacturing and Department of Chemistry, The University of Alabama, Tuscaloosa, AL 35487 (USA)
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  • Chris S. Griggs,

    1. Center for Green Manufacturing and Department of Chemistry, The University of Alabama, Tuscaloosa, AL 35487 (USA)
    2. U.S. Army ERDC Environmental Laboratory, Vicksburg, MS 39180 (USA)
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  • Dr. Gabriela Gurau,

    1. Center for Green Manufacturing and Department of Chemistry, The University of Alabama, Tuscaloosa, AL 35487 (USA)
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  • Dr. Zhen Liu,

    1. College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, Beijing, 100049 (China)
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  • Shan Li,

    1. College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, Beijing, 100049 (China)
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  • Prof. Zengxi Li,

    1. College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, Beijing, 100049 (China)
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  • Prof. Xingmei Lu,

    1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Graduate University of Chinese Academy of Sciences, Beijing, 100190 (China)
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  • Prof. Suojiang Zhang,

    Corresponding author
    1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Graduate University of Chinese Academy of Sciences, Beijing, 100190 (China)
    • Suojiang Zhang, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Graduate University of Chinese Academy of Sciences, Beijing, 100190 (China)

      Robin D. Rogers, Center for Green Manufacturing and Department of Chemistry, The University of Alabama, Tuscaloosa, AL 35487 (USA)

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  • Prof. Robin D. Rogers

    Corresponding author
    1. Center for Green Manufacturing and Department of Chemistry, The University of Alabama, Tuscaloosa, AL 35487 (USA)
    2. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Graduate University of Chinese Academy of Sciences, Beijing, 100190 (China)
    • Suojiang Zhang, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Graduate University of Chinese Academy of Sciences, Beijing, 100190 (China)

      Robin D. Rogers, Center for Green Manufacturing and Department of Chemistry, The University of Alabama, Tuscaloosa, AL 35487 (USA)

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  • This collaborative effort was supported by the Chinese Academy of Sciences Visiting Professorship for Senior International Scientists (R.D.R., grant number 2011T2G24). The authors gratefully acknowledge the financial support from the U.S. DOE Office of Nuclear Energy’s Nuclear Energy University Programs (sub-contract number 120427, project number 3123), the National Natural Science Foundation of China (grant number 21210006), and the Beijing Municipal Natural Science Foundation (grant number 2131005).

Abstract

original image

Chemisorption of carbon dioxide by 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) provides a route to coagulate chitin and cellulose from [C2mim][OAc] solutions without the use of high-boiling antisolvents (e.g., water or ethanol). The use of CO2 chemisorption as an alternative coagulating process has the potential to provide an economical and energy-efficient method for recycling the ionic liquid.

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