Practical and inexpensive acid_activated montmorillonite catalysts for energy-efficient CO2capture

Umair H. Bhatti, Wajahat W. Kazmi, Hafiz A. Muhammad, Gwan Hong Min, Sung Chan Nam*, Il Hyun Baek*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


Here, we report acid_activated montmorillonite as a cheap, durable, abundant, and efficient heterogeneous catalyst to optimize the CO2 desorption rate at low temperatures (≤86 °C), eventually to significantly minimize the energy penalty of amine solutions employed for CO2 capture. The prepared catalysts do not degrade and can be easily separated by simple filtration. Detailed characterization reveals an increase in the BET surface area, mesoporosity, and surface acidity induced by the acid_activation process. These are the key catalytic properties responsible for the superior catalytic performance.

Original languageEnglish (US)
Pages (from-to)6328-6333
Number of pages6
JournalGreen Chemistry
Issue number19
StatePublished - Oct 7 2020

Bibliographical note

Funding Information:
This work was supported by the “Next Generation Carbon Upcycling Project” (Project No. 2017M1A2A2043151) through the National Research Foundation (NRF) funded by the Ministry of Science and ICT, Republic of Korea.

Publisher Copyright:
© The Royal Society of Chemistry.

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution


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