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Keywords:

  • biomass;
  • carbon dioxide;
  • chitin;
  • coagulation;
  • ionic liquids
Thumbnail image of graphical abstract

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.