Preparation method of composite polyamide nanofiltration membrane

The invention discloses a preparation method of a composite polyamide nanofiltration membrane. The preparation method specifically comprises the following steps: (1) preparing a porous molybdenum disulfide nanosheet; (2) preparing a water phase solution; (3) preparing an organic phase solution; and (4) preparing the composite polyamide nanofiltration membrane. Compared with a blank membrane (a polypiperazine amide nanofiltration membrane in which the porous molybdenum disulfide nanosheets are not embedded), the water flux and the heavy metal ion rejection rate of the prepared composite polyamide nanofiltration membrane are remarkably improved. 本发明公开了一种复合聚酰胺纳滤膜的制备方法，具体包括以下步骤：(1)制备多孔二硫化钼纳米片；(2)配制水相溶液；(3)配制有机相溶液；(4)制备复合聚酰胺纳滤膜。与空白膜(未嵌入多孔二硫化钼纳米片的聚哌嗪酰胺纳滤膜)相比，本发明制得的复合聚酰胺纳滤膜的水通量和重金属离子截留率均显著提高。