Mixed matrix forward osmosis membrane based on MOF-808 (Zr) and preparation method thereof

The invention discloses a mixed matrix forward osmosis membrane based on MOF-808 (Zr) and a preparation method thereof, and belongs to the field of membrane separation. The invention provides a preparation method of a mixed matrix forward osmosis membrane based on metal organic frameworks (MOFs), the membrane is prepared by taking a polyester screen as a support layer, pouring a membrane casting solution formed by stirring and dissolving an organic solvent, a pore-foaming agent, a polymer membrane material and a nano material according to a certain proportion at a certain temperature on the support layer, and scraping with a scraper. The prepared MOFs material has the characteristics of good water stability, chemical stability, high specific surface area, stable structure and the like, so that the hydrophilicity, the mechanical strength, the pollution resistance and the like of the membrane can be remarkably improved, and the water flux and the salt rejection rate can be improved when the MOFs material is app