Patents
US 12344539 B1: Plasmon-enhanced catalytic ozonation for recalcitrant water pollutant removal
- Granted
- 2025-07-01
- Filed
- 2022-03-22 application 17701443
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present disclosure is directed to method of treating water/wastewater using a plasmon-enhanced catalytic ozonation process. Water/wastewater often contains numerous pollutants, some of which are particularly difficult and inefficient to remove and require energy-intensive treatment such as advanced oxidation processes. The present plasmonic metal nanostructured catalyst is configured to interact with electromagnetic radiation through excitation of localized surface plasmon resonance, leading to accelerated ozone decomposition and reactive species generation. The reactive species oxidizes water pollutants, resulting in a water treatment process that avoids excessive energy input and creation of toxic byproducts. In an exemplary application of the plasmon-enhanced catalytic ozonation process, the atrazine degradation rate is increased compared to conventional ozonation and catalytic ozonation processes, owing to the plasmonic effects of Ag in the plasmonic metal nanostructured catalyst.
Source: PVGPATDIS, file of 2026-04-10 (ipg250701.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Board of Trustees of the Univeristy of Alabama, for and on behalf of the University of Alabama in Huntsville 88 patents | US company or organization | Huntsville, AL | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Tingtang Wu | Madison, AL | 1 | PVGPATDIS, file of 2026-04-10 | |
| Wenwen Yang | 安丰镇, CN | 13 | PVGPATDIS, file of 2026-04-10 | |
| Yu Lei | Madison, AL | 90 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C02F | Treatment of water, waste water, sewage, or sludge | C02F1/725 | PVGPATDIS, file of 2026-04-10 |
| B01J | Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | B01J23/005 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-06-29 | Assignment Assignment of assignor's interest | WU, TINGTING signed 2022-06-07 YANG, WENWEN signed 2022-06-10 LEI, YU signed 2022-06-07 | BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA, FOR AND ON BEHALF OF THE UNIVERSITY OF ALABAMA IN HUNTSVILLE HUNTSVILLE, AL | 60352/791 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.