Production of reactive oxidative species by photocat alytic activation of chlorine (I) under ultraviolet/visible light/near infrared irradiation
US11046592B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 26, 2019 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Nov 26, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system to produce reactive oxidative species in a fluid medium containing a source of Cl(I) by irradiating a solid photocatalyst suspended in the fluid medium or residing on a surface that is contactable by the fluid with electromagnetic radiation. The electromagnetic radiation can be in the UV, near-UV, visible, or near-IR consistent with the photocatalyst employed. The source of Cl(I) in certain embodiments is Cl2, HOCl, or H2NCl. The photocatalyst is g-C3N4, TiO2, BBiOBr, or any other solid insoluble photocatalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.