| abstract |
The invention discloses a modified polyvinylidene fluoride membrane with efficient anti-pollution and antibacterial properties and a preparation method. The preparation method is as follows: (1) preparing a DOPA-Tris buffer solution; (2) immersing the PVDF flat membrane in DOPA completely -Tris buffer solution, coating to obtain PVDF/PDA membrane; (3) preparing Cu 2+ solution; PEG-NH 2 solution; (4) placing PVDF/PDA membrane in Cu 2+ solution, reacting, washing, Drying; the membrane is placed in DOPA-Tris buffer solution, homogenized, washed, dried, then placed in PEG-NH 2 solution, reacted, washed, and dried to obtain the final result. The prepared modified polyvinylidene fluoride membrane with high-efficiency anti-pollution and antibacterial properties has high mechanical strength and good permeability, and has a significant inhibitory effect on the adsorption of BSA and humic acid on the membrane surface and membrane pore surface, and has excellent antibacterial properties. performance. It can be used in the field of wastewater and sewage treatment. |