Qi et al. (2026): Study on direct air capture using Ti-doped K₂CO₃/ZrO₂ composite adsorbent: A combination of experimental, characterization and first-principles calculations
Zhuang Qi, Xiaoping Chen, Zelin Xu, Zi Liu, Jiliang Ma, Fengyuan Zhang and Cai Liang, IN: Chemical Engineering Journal, https://doi.org/10.1016/j.cej.2026.175943
Direct air capture (DAC) technology is widely recognized as a promising strategy for achieving negative carbon emissions. Alkali metal-based composite solid adsorbents exhibit strong chemical affinity and high reaction selectivity toward carbon dioxide but often suffer from high regeneration energy consumption and low cycle efficiency, limiting their practical application. In this study, a K₂CO₃/ZrO₂ composite adsorbent doped by TiO₂ was developed to enhance DAC performance.