@article{LAN2025, 
author = {Yunxia LAN and Shiqiang ZHENG and Yang XIE and Wenyan WU and Lin YANG and Yun ZHAO and Yuan YAN and Liangliang ZHU},
title = {The formation of activated carbon-based moisture-swing adsorbents and their CO2 direct air capture performance},
year = {2025},
journal = {Journal of Northwest University (Natural Science Edition)},
volume = {55},
number = {5},
pages = {970-978},
keywords = {CO2, moisture-swing adsorption, adsorbent formation, activated carbon, direct air capture},
url = {https://www.sciopen.com/article/10.16152/j.cnki.xdxbzr.2025-05-003},
doi = {10.16152/j.cnki.xdxbzr.2025-05-003},
abstract = {Currently, most research on moisture-swing adsorbents for CO2 direct air capture (DAC) technology focuses on solid powder materials, which hinder large-scale engineering applications. By compositing activated carbon (AC) with binders such as methylcellulose and bentonite, and further loaded with K2CO3, a K2CO3/AC shaped adsorbent for direct air capture of CO2 was prepared. Its practical performance was evaluated through characterization tests and CO2 adsorption performance tests. Experimental results indicate that the shaped adsorbent exhibits good compressive strength and CO2 adsorption performance under DAC circumstances. As the AC content in the shaped adsorbent increases, the adsorption capacity for DAC shows an upward trend. The K2CO3/AC-60 shaped adsorbent with an AC mass fraction of 60% has the optimal compressive strength and its adsorption capacity can reach 0.319 mmol/g. This study provides a scientific basis for the formation and industrial application of powder moisture-swing adsorbents, and holds great significance for the development of practical DAC adsorbents.}
}