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Enhanced CO2 adsorption of activated carbon with simultaneous surface etching and functionalization by nitrogen plasma treatment

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2023, 33(1), pp.139-145
  • DOI : 10.1007/s42823-022-00410-1
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : August 24, 2022
  • Accepted : September 17, 2022
  • Published : February 1, 2023

Lim Chaehun 1 Kwak Cheol Hwan 2 Jeong Seo Gyeong 1 Kim Daesup 1 Lee Young-Seak 1

1Department of Chemical Engineering and Applied Chemistry, Chungnam National University
2Institute of Carbon Fusion Technology (InCFT), Chungnam National University

Accredited

ABSTRACT

Removing CO2 gas to address the global climate crisis is one of the most urgent agendas. To improve the CO2 adsorption ability of activated carbon, nitrogen plasma surface treatment was conducted. The effect of nitrogen plasma treatment on the surface chemistry and pore geometry of activated carbon was extensively analyzed. The porosity and surface groups of the activated carbon varied with the plasma treatment time. By plasma treatment for a few minutes, the microporosity and surface functionality could be simultaneously controlled. The changed microporosity and nitrogen groups affected the CO2 adsorption capacity and CO2 adsorption selectivity over N2. This simultaneous surface etching and functionalization effect could be achieved with a short operating time and low energy consumption.

Citation status

Scopus Citation Counts (7) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2023-10-01)

* References for papers published after 2022 are currently being built.