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:
May. 05, 2020
Filed:
Jul. 31, 2018
Board of Trustees of the University of Arkansas, Little Rock, AR (US);
The United States of America, As Represented BY the Secretary of the Army, Alexandria, VA (US);
Christopher S. Griggs, Vicksburg, MS (US);
Jose A. Mattei-Sosa, Vicksburg, MS (US);
Luke A. Gurtowski, Vicksburg, MS (US);
Lauren F. Greenlee, Fayetteville, AR (US);
Mojtaba Abolhassani, Yazd, IR;
Board of Trustees of the University of Arkansas, Little Rock, AR (US);
The United States of America, as Represented by the Secretary of the Army, Washington, DC (US);
Abstract
This invention relates generally to a chitosan-graphene oxide membrane and process of making the same. The nanocomposite membrane can filter water and remove contaminants without fouling like other commercially-available polymer-based water filters. The membrane can be used as a flat sheet filter or can be engineered in a spiral filtration module. The membrane is scalable and tunable for many water contaminants including pharmaceuticals, pesticides, herbicides, and other organic chemicals. The membrane uses chitosan, which is low-cost, renewable biopolymer typically considered to be a waste product and the second most abundant biopolymer on Earth, thus making the membrane an environmentally-friendly product choice.