UIO-66-NH2doped organosilicon high salinity wastewater treatment membrane and a preparation method thereof
US11596906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2021 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Jul 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention belongs to the technical field of composite membrane, and in particular discloses a UIO-66-NH2 doped organosilicon high salinity wastewater treatment membrane and a preparation method thereof. The membrane is formed into UIO-66-NH2/organosilicon hybrid membrane on the prefabricated ceramic support surface through the dip-coating method by doping the UIO-66-NH2 metal-organic framework material into the organosilicon polymeric sol. The UIO-66-NH2/organosilicon hybrid membrane prepared by the present invention exhibits high water permeability (up to 1.6×10−10 m3/(m2 s Pa) and high salt retention (NaCl retention rate is more than 99.9. %) in the application of pervaporation desalination, and maintains stable membrane structure in the treatment process of TDS>5 wt % high salinity wastewater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.