DOAJ Open Access 2025

Enzyme assisted direct air capture of carbon dioxide

Agnese Zaghini Silke Flindt Badino Stefanie Neun Peter Westh

Abstrak

Direct air capture (DAC) has been widely advocated as a key tool in the strive towards zero emissions. Here we present the first systematic data on enzyme assisted DAC and show that CO2 absorption rate tripled upon addition of carbonic anhydrase (CA) at micromolar concentrations, reaching a capture efficiency of 60%. We found that CA promoted high absorption efficiency as the flow rate was raised and we rationalized these observations based on molecular mechanism of enzyme assisted capture. Furthermore, measurements of absorption rates in KOH and carbonate with 1 μM CA showed comparable kinetics suggesting that enzyme application could offset kinetic advantages of hydroxides. These attributes may eventually pave the way for DAC in sorbents with low regeneration energies.

Topik & Kata Kunci

Environmental technology. Sanitary engineering

Penulis (4)

Agnese Zaghini

Silke Flindt Badino

Stefanie Neun

Peter Westh

Format Sitasi

APA MLA BibTeX

Zaghini, A., Badino, S.F., Neun, S., Westh, P. (2025). Enzyme assisted direct air capture of carbon dioxide. https://doi.org/10.1016/j.ccst.2025.100369

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.1016/j.ccst.2025.100369
Akses: Open Access ✓