Halogen decontamination from metal-containing materials using chemical modification
US-2026061243-A1 · Mar 5, 2026 · US
Activated carbon supported Ni0Fe0 nanoparticles for reductive transformation of perfluoroalkyl-containing compounds
US11565139B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11565139-B2 |
| Application number | US-202117244219-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 29, 2021 |
| Priority date | Aug 25, 2017 |
| Publication date | Jan 31, 2023 |
| Grant date | Jan 31, 2023 |
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- Title
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Abstract
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The present application relates to a novel method for reductive degradation of perfluoroalkyl-containing compounds, such as perfluoroalkyl sulfonates, by activated carbon (AC) supported zero valent iron-nickle nanoparticles (nNi 0 Fe 0 ).
First claim
Opening claim text (preview).
We claim: 1. A catalyst composition comprising zero valent iron (Fe 0 ) nanoparticles with surface coated by zero valent nickel (Ni 0 ), and active carbon powders, wherein said zero valent iron (Fe 0 ) nanoparticles coated by zero valent nickel (Ni 0 ) are supported by said active carbon powders, wherein said active carbon powders comprise active carbon nanoparticles. 2. The catalyst composition of claim 1 , wherein the weight percentage of the zero valent nickel (Ni 0 ) is 0.5% to 5.0% of the total weight of zero valent iron (Fe 0 ) and zero valent nickel (Ni 0 ). 3. The catalyst composition of claim 1 , wherein the weight percentage of the zero valent nickel (Ni 0 ) is 1% to 3% of the total weight of zero valent iron (Fe 0 ) and zero valent nickel (Ni 0 ). 4. The catalyst composition of claim 1 , wherein weight percentage of active carbon powders is 5% to 20% of total weight of zero valent iron (Fe 0 ), zero valent nickel (Ni 0 ), and active carbon powders. 5. The catalyst composition of claim 1 , wherein zero valent nickel (Ni 0 ) is plated onto surface of zero valent iron (Fe 0 ) nanoparticles. 6. The catalyst composition of claim 1 , wherein zero valent iron (Fe 0 ) nanoparticles comprise particles with size distribution from 20 nm to 70 nm.
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Classifications
using coal, charred products, or inorganic mixtures containing them · CPC title
containing halogen · CPC title
involving in-situ ground water treatment · CPC title
Carbon · CPC title
containing halogen · CPC title
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Frequently asked questions
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- What does patent US11565139B2 cover?
- The present application relates to a novel method for reductive degradation of perfluoroalkyl-containing compounds, such as perfluoroalkyl sulfonates, by activated carbon (AC) supported zero valent iron-nickle nanoparticles (nNi 0 Fe 0 ).
- Who is the assignee on this patent?
- Purdue Research Foundation
- What technology area does this patent fall under?
- Primary CPC classification A62D3/34. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Jan 31 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).