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 language | English |
|---|---|
| Pages (from-to) | 1791-1830 |
| Number of pages | 40 |
| Journal | Environmental Chemistry Letters |
| Volume | 22 |
| Issue number | 4 |
| Early online date | 28 Apr 2024 |
| DOIs | |
| Publication status | Published - Aug 2024 |
| Externally published | Yes |
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
