1results about How to "Increase Separation Throughput" patented technology

The application belongs to the field of membrane separation materials, and discloses a visible light catalytic self-cleaning oil-water separation membrane and a preparation method and application thereof, and comprises the following steps: 4-cyanopentanoic acid dithiobenzoate is used to prepare an alkyne functionalized RAFT reagent; the alkyne functionalized RAFT reagent is grafted on the polymerization chain of azidation polyether sulfone through a click chemistry reaction to obtain a RAFT reagent functionalized polyether sulfone polymer; based on the RAFT reagent functionalized polyether sulfone polymer, a PES / PES-CPPA membrane is prepared through a non-solvent induced phase separation method; a hydrophilic zwitterion PSBMA is modified on the surface of the PES / PES-CPPA membrane through a RAFT polymerization method to obtain a super-hydrophilic / underwater super-oleophobic membrane; Fe 3+ The super-hydrophilic / underwater super-oleophobic membrane is subjected to complex treatment to obtain the visible light catalytic self-cleaning oil-water separation membrane; and the application significantly improves the stability and effect of the membrane material in long-term use.