The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2023
Filed:
Jun. 22, 2020
Tongji University, Shanghai, CN;
Tianjin Polytechnic University, Tianjin, CN;
Zhiwei Wang, Tianjin, CN;
Ruobin Dai, Tianjin, CN;
Hongwei Zhang, Tianjin, CN;
Liang Wang, Tianjin, CN;
Qiaoying Wang, Tianjin, CN;
Zhichao Wu, Tianjin, CN;
TONGJI UNIVERSITY, Shanghai, CN;
TIANJIN POLYTECHNIC UNIVERSITY, Tianjin, CN;
Abstract
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 acid chloride monomer and a metal-organic framework.