Activated carbon derived from chitin aerogels: preparation and CO2 adsorption

Rohan S. Dassanayake, Chamila Gunathilake, Noureddine Abidi, Mietek Jaroniec

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Activated carbon was prepared by carbonization and KOH activation of chitin aerogels. The resulting carbon featured high CO2 adsorption of 5.02 mmol/g at 0 °C and 3.44 mmol/g at 25 °C under ambient pressure of 1 atm. The activated carbon showed a high specific surface area of ~ 520 m2/g, total pore volume of 0.30 cm3/g, and volume of micropores of ~ 0.19 cm3/g. KOH activation of carbonized chitin aerogels resulted in about 37-fold increase in the specific surface area and about 95-fold increase in the volume of micropores as compared to the as-synthesized chitin aerogel. These data indicate that the chitin-derived activated carbon can be used for adsorption-based environmental and related applications.

Original languageEnglish
Pages (from-to)1911-1920
Number of pages10
JournalCellulose
Volume25
Issue number3
DOIs
StatePublished - Mar 1 2018

Keywords

  • Activated carbon
  • Aerogels
  • Biopolymers
  • CO capture
  • Chitin

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