公开(公告)号：US11806674B1

公开(公告)日：2023-11-07

申请号：US18124024

申请日：2023-03-21

申请人： Harbin Engineering University

发明人： Jun Wang ,  Jiaqi Yu ,  Qi Liu ,  Hongsen Zhang ,  Jingyuan Liu ,  Rongrong Chen ,  Jing Yu ,  Jiahui Zhu ,  Rumin Li ,  Peili Liu

IPC分类号： B01D67/00 ,  B01D69/02 ,  B01D71/42 ,  C22B60/02

CPC分类号： B01D67/0079 ,  B01D69/02 ,  B01D71/42 ,  B01D2323/02 ,  B01D2325/36 ,  C22B60/0265

摘要： A high flux antibacterial polyacrylonitrile-based uranium-extraction-from-seawater-seawater desalination cogeneration membrane and a preparation method thereof are disclosed. To satisfy demand of uranium-extraction-from-seawater-seawater desalination cogeneration application, polyacrylonitrile, chitosan and amidoxime modified polyacrylonitrile are taken as raw materials and a proportion of raw materials of a casting membrane are optimized in a membrane forming process. The conversion rate of polyacrylonitrile is adjusted so that formation of an amidoxime modified polyacrylonitrile powder in a casting membrane liquid mixing system is regulated and controlled, thereby significantly improving the mechanical properties, the flux, the hydrophilicity, the antibacterial property and the uranium adsorptive property. A compound cogeneration membrane composed of a top membrane, a clipping membrane and a bottom membrane are also prepared according to actual function characteristics of seawater and the membrane material, and the uranium-extraction-from-seawater-seawater desalination performance of the membrane material is integrally improved.