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:
Feb. 01, 2022
Filed:
Dec. 26, 2019
Nanjing University, Nanjing, CN;
Weiming Zhang, Nanjing, CN;
Wenbin Zhang, Nanjing, CN;
Mengqi Shi, Nanjing, CN;
Siyu Lei, Nanjing, CN;
Bingcai Pan, Nanjing, CN;
Lu Lv, Nanjing, CN;
NANJING UNIVERSITY, Nanjing, CN;
Abstract
The present invention discloses a nanocomposite membrane for heavy metal rejection and a preparation method thereof. The nanocomposite membrane comprises a porous membrane prepared from a two-dimensional sheet material and a hydrophilic inorganic nanomaterial distributed between the sheets of the two-dimensional material. The effective pore size of the nanocomposite membrane under wet conditions is not greater than 1.2 nm. The static water contact angle of the nanocomposite membrane is not greater than 45°. The preparation method of the nanocomposite membrane comprises: adding reactants on both sides of a nanoporous membrane to carry out an interfacial synthesis reaction to obtain the nanocomposite membrane. The method is simple and controllable. Driven by lower pressure, heavy metal ions in water are rejected by a pore size screening function, thereby achieving the purpose of deep removal. The nanocomposite membrane can be used to quickly remove heavy metal ions from water.