Liquid-like adsorbent assembled by CNTs: Serving as renewable CO2 capture materials for indoor air

Jae Won Lee, Minjae Kim, Han Sol Jung, Ronghuan Xu, Seonggon Kim, Yong Tae Kang

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


In this study, a CO2 capture material in the form of liquid-like adsorbents (LLAs) is developed to overcome the limitations of conventional types of adsorbents. The increase in indoor activities necessitates the capture of CO2 in enclosed indoor spaces. Indoor spaces require safe and stable materials for CO2 capture because humans are present in these spaces. Solid adsorbents are mainly used because liquid absorbents are unsuitable owing to noise and scattering problems. In LLA, the liquid absorbent assembled by carbon nanotubes (CNTs) is solidified and prevented from flowing and scattering indoor. LLAs present to maintain 95% of initial capacity after recycling 20 times, and have characteristics that can be regenerated in a low temperature heat source (80 to 120 ℃) and moisture resistance. This work not only provides indoor useable CO2 capture materials, but also offers a new prospect in the field of adsorbents.

Original languageEnglish
Pages (from-to)574-584
Number of pages11
JournalJournal of Energy Chemistry
Publication statusPublished - 2021 Dec

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (Grant number: 2020R1A5A1018153 and No. 2020R1A6A3A01095950 ).

Publisher Copyright:
© 2021 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences


  • Adsorbents
  • CNT
  • CO capture
  • Indoor air
  • Silicone oil

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Electrochemistry


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