Method for converting carbon dioxide into carbonate nanomaterials using biological materials

Abstract

In one aspect, the disclosure relates to metal carbonate nanoparticles, methods of making the same, and articles and compositions using the same. In an aspect the method can be a two-step method comprising bubbling a gas mixture containing carbon dioxide through a solution of a base and an amino acid, followed by addition of a metal salt and subsequent precipitation of the metal carbonate nanoparticles. In an alternative aspect, the method can be a one-step method comprising bubbling a gas mixture containing carbon dioxide through a solution of a base and an amino acid. In either of these methods, the amino acids can be recovered and re-used. In one aspect, the morphology and size of the nanoparticles can be tailored based on amino acid concentration and identity. In any of these aspects, the method is further useful for capturing and/or sequestering carbon dioxide from flue gases or the atmosphere.

Dependencies are inferred from the claim text.