THIN-FILM COMPOSITE POLYAMIDE REVERSE OSMOSIS MEMBRANE WITH ANTI-BACTERIAL AND ANTI-BIOFOULING EFFECTS AND PREPARATION METHOD THEREOF
申请人:Tongji University
公开号:US20210060497A1
公开(公告)日:2021-03-04
A thin-film composite polyamide reverse osmosis membrane with anti-bacterial and anti-biofouling effects and a preparation method thereof are disclosed. The preparation method includes: dissolving a highly water-stable metal organic framework CuBTTri in an n-hexane solution containing trimesoyl chloride by ultrasonic wave, immersing a polyethersulfone ultrafiltration membrane in an aqueous solution of m-phenylene diamine and taking out, and then immersing the ultrafiltration membrane in the trimesoyl chloride-n-hexane solution containing the aforementioned metal organic framework for reaction and modification, so as to obtain the thin-film composite polyamide reverse osmosis membrane. The resulting composite reverse osmosis membrane integrated with the anti-bacterial metal organic framework CuBTTri has a high reverse osmosis membrane permeability and possesses greatly improved and persistent anti-bacterial and anti-biofouling properties. The preparation method is simple and conducive to promotion, and has mild conditions.
本发明公开了一种具有抗菌和抗生物污染效果的薄膜复合聚酰胺反渗透膜及其制备方法。制备方法包括:通过超声波将高度水稳定的金属有机框架CuBTTri溶解于含有三苯甲酰氯的正己烷溶液中,将聚醚砜超滤膜浸泡在间苯二胺水溶液中并取出,然后将超滤膜浸泡在含有上述金属有机框架的三苯甲酰氯-正己烷溶液中进行反应和修饰,以获得薄膜复合聚酰胺反渗透膜。所得的复合反渗透膜集成了抗菌金属有机框架CuBTTri,具有高反渗透膜通透性,并具有极大改善和持久的抗菌和抗生物污染性能。该制备方法简单,有利于推广,并具有温和的条件。