CoFe2O4-WTRs composite magnetic catalyst, preparation method and application thereof
US11090641B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Sep 18, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/44
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention discloses a CoFe2O4-WTRs composite magnetic catalyst for efficiently degrading atrazine by activating peroxymonosulfate, preparation method and application thereof. The CoFe2O4-WTRs composite magnetic catalyst is prepared by three steps: the first step is acid-leaching of WTRs, using the WTRs as iron source to provide the iron ions required for the synthesis of CoFe2O4; the second step is preparing of a precursor, synthesizing CoFe2O4 by chemical co-precipitation method and uniformly loading the prepared CoFe2O4 on the WTRs; and the third step is calcining the precursor to synthesize the CoFe2O4-WTRs composite magnetic catalyst. The catalytic performance of the CoFe2O4-WTRs composite magnetic catalyst prepared by the present invention is evaluated using PMS as an oxidant and atrazine as a target pollutant. The CoFe2O4-WTRs can efficiently remove atrazine from the actual water, exhibiting good potential for practical application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.