Atmospheric carbon dioxide capture by adsorption on amine-functionalized silica composites: a review

Rahul NAVIK, Eryu WANG, Xiao DING, Kai Xuan QIU, Jia LI*

*Corresponding author for this work

Research output: Journal PublicationsReview articleOther Review

8 Citations (Scopus)

Abstract

The rising negative effects of climate change are caused mainly by the increase of atmospheric carbon dioxide concentrations, calling for advanced technologies to extract carbon dioxide from atmospheric air. Here we review carbon dioxide capture from atmospheric air by amine-functionalized silica composites with emphasis on development principles, mechanisms, absorbent criteria, performance determination, and preparation techniques. Amine-silica absorbent preparation for carbon dioxide capture is done by impregnation, chemical graphting, hybrid functionalization, and in situ polymerization. High costs, poor performance, and scalability are actually posing challenges for large-scale deployment.
Original languageEnglish
Pages (from-to)1791-1830
Number of pages40
JournalEnvironmental Chemistry Letters
Volume22
Issue number4
Early online date28 Apr 2024
DOIs
Publication statusPublished - Aug 2024
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024.

Funding

The authors acknowledge the National Natural Science Foundation of China (Ne72140008) for financial support. The authors also thank the support from the Consensus project, which received funding from the European Union's Horizon 2020 Research and Innovation program under grant agreement No. 101022484.

Keywords

  • Amine–silica composite
  • Carbon capture
  • Climate change
  • Direct air capture
  • Negative emissions
  • Net-zero carbon

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