Distributed direct air capture by carbon nanofiber air filters.

ABSTRACT: The rising atmospheric CO₂ concentration is one of the biggest challenges human civilization faces. Direct air capture (DAC) that removes CO₂ from the atmosphere provides great potential in carbon neutralization. However, the massive land use and capital investment of centralized DAC plants and the energy-intensive process of adsorbent regeneration limit its wide employment. We develop a distributed carbon nanofiber (CNF)-based DAC air filter capable of adsorbing CO₂ downstream in ventilation systems. The DAC air filter not only has the potential to remove 596 MtCO₂ year^-1 globally but can also decrease energy consumption in existing building systems. The CNF-based adsorbent has a capacity of 4 mmol/g and can be regenerated via solar t

SUBMITTER: Wu R 

PROVIDER: S-EPMC12533599 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature