Invention Reference Number
202405590
Atmospheric carbon dioxide is captured with an aqueous solution containing a guanidine photobase and a small peptide, using a UV-light stimulus, and subsequently released when the light stimulus is removed. In this approach, we take advantage of a new photobase that becomes more basic after exposure to UV light. The pH swing of this photobase during photoirradiation facilitates a proton transfer event, which activates a small peptide for CO2 capture. Removing the solution from UV light initiates the release of CO2. The process can be cycled between capture and release states multiple times with minimal loss in efficiency.
Contact
To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.
