CONCENTRATION OF CHEMICAL SPECIES THROUGH THE USE OF PHOTOSENSTIVE SORBENT MATERIALS

Abstract: a device comprising a photosensitive sorbent material is configured to concentrate a target chemical species. the photosensitive sorbent material has a stepped type f-iv isotherm profile with a high working capacity and can adsorb the target chemical species in a porous open phase. the photosensitive material can be converted into a less porous closed phase upon exposure to light of a certain wavelength through a photochemical transformation to allow for desorption and collection of the target chemical species. the photosensitive material can be converted back to the open phase upon exposure to light of a different wavelength for regeneration and this process can be repeated cycles of adsorption and desorption.

Inventor(s): Kurt Francis, Owen Erickson, David Stuckenberg

CPC Classification: B01J20/226 (CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS)

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