一种选择性去除疏水性内分泌干扰物的高通量纳滤膜及其制备方法

• Format: Patent
• Language: Chinese
• Published: 29.12.2020
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

本发明公开了一种选择性去除疏水性内分泌干扰物的高通量纳滤膜及其制备方法，属于膜分离技术领域。该方法步骤包括：将多孔支撑层浸入至第一溶液中，取出后去除支撑层表面多余液滴，然后将附着有第一溶液的支撑层浸入到第二溶液中，进行界面聚合反应，反应完成后经清洗即得目标纳滤膜，其中，所述第一溶液为包含多胺单体和缚酸剂的水溶液，第二溶液为包含酰氯单体和金属有机框架化合物有机溶液。本发明制备方法简单，制备得到的纳滤膜在提升疏水内分泌干扰物截留率的同时还大幅增加了水通量，有效提升了其对水/内分泌干扰物的选择性。 A nanofiltration membrane with a high flux for selectively removing hydrophobic endocrine disrupting chemicals and a preparation method thereof are provided. The method includes the following steps: immersing a porous support layer into a first solution, removing excess droplets from a surface of the support layer after taking the support layer out of the first solution, and then immersing the support layer attached with the first solution into a second solution for an interfacial polymerization reaction, followed by washing after completion of the reaction to obtain the subject nanofiltration membrane. The first solution is an aqueous solution containing a polyamine monomer and an acid binding agent, and the second solution is an organic solution containing an aci