3d structure-functional design of biomass-derived solar photocatalyst for antimicrobial efficacy and chemical degradation at ambient conditions
AssigneeThe Texas A&M University System
InventorsYUAN DAI, WAN ZHANG
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Abstract
The subject invention pertains a stable, three-dimensional (3D) photocatalyst composition comprising TiO2 doped with carbon derived from lignin. The photocatalyst composition has a stable, hollow, spherical or spheroid nanoparticle structure, which improves photodegradation under visible light irradiation over unmodified TiO2 photocatalysts. The subject invention also provides methods of preparing the photocatalyst, as well as methods using the photocatalyst to remediate contaminants such as pharmaceuticals, pathogens and persistent organic pollutants.
Claims20
A photocatalyst composition comprising a metal oxide semiconductor modified with a carbon dopant derived from a carbon precursor material, wherein the photocatalyst composition comprises a hollow, nanoparticle structure having a spherical or spheroid shape, and wherein the photocatalyst composition is capable of facilitating remediation of a contaminant upon irradiation via light within the visible light range.
Dependencies are inferred from the claim text.