Synthesis of a thin insoluble hydroxide shell on the surface of magnetic zero-valent metal nanoparticles for environmental remediation
US11241670B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Mar 12, 2018 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Nov 6, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/08
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An insoluble thin hydroxide shell is synthesized on the surface of nanoscale zero-valent iron (NZVI), using a rate-controlled deprotonation method. The hydroxide coated NZVI remains suspended in aqueous phase better than the prior art and can be used to remove groundwater contaminants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.