US 12,344,539 B1
Plasmon-enhanced catalytic ozonation for recalcitrant water pollutant removal
Tingtang Wu, Madison, AL (US); Wenwen Yang, Jiangsu (CN); and Yu Lei, Madison, AL (US)
Assigned to Board of Trustees of the University of Alabama, for and on Behalf of The University of Alabama In Huntsville, Huntsville, AL (US)
Filed by Board of Trustees of the University of Alabama, for and on behalf of the University of Alabama in Huntsville, Huntsville, AL (US)
Filed on Mar. 22, 2022, as Appl. No. 17/701,443.
Int. Cl. C02F 1/78 (2023.01); B01J 23/00 (2006.01); B01J 23/89 (2006.01); B01J 35/23 (2024.01); B01J 35/30 (2024.01); B01J 35/39 (2024.01); C02F 1/30 (2023.01); C02F 1/72 (2023.01); C02F 101/36 (2006.01); C02F 101/38 (2006.01)
CPC C02F 1/725 (2013.01) [B01J 23/005 (2013.01); B01J 23/8986 (2013.01); B01J 35/23 (2024.01); B01J 35/39 (2024.01); B01J 35/394 (2024.01); C02F 1/30 (2013.01); C02F 1/78 (2013.01); C02F 2101/36 (2013.01); C02F 2101/38 (2013.01); C02F 2303/18 (2013.01); C02F 2305/023 (2013.01); C02F 2305/10 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of water treatment, the method comprising the steps of:
providing a plasmonic metal nanostructure catalyst, the plasmonic metal nanostructure catalyst including a substrate with plasmonic nanostructures, the substrate doped with a plasmonic metal; and
combining the plasmonic metal nanostructure catalyst and ozone with water in a reactor vessel that is exposed to electromagnetic radiation having wavelengths of a plasmon band of the plasmonic metal nanostructure catalyst, the water containing at least one water pollutant,
wherein the plasmonic metal nanostructure catalyst interacts with the electromagnetic radiation through excitation of localized surface plasmon resonance, such that reactive species are generated from the ozone, and such that the reactive species oxidize the at least one water pollutant and treat the water.