Chitosan-graphene oxide membranes

Inventors

Chris S. GriggsFollow
Jose A. Mattei-SosaFollow
Luke A. GurtowskiFollow
Lauren F. Greenlee, University of Arkansas, FayettevilleFollow
Mojtaba Abolhassani, University of Arkansas, FayettevilleFollow

Document Type

Patent

Publication Date

10-5-2021

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.

Department

Chemical Engineering

Patent Number

US11135555

Application Number

US 20200215494 A1

Application Published

7-9-2020

Application Filed

3-17-2020

Assignee

Board of Trustees of the University of Arkansas (Little Rock, AR); United States of America, as Represented by the Secretary of the Army (Alexandria, VA)

Comments

Christopher S. Griggs, Department of Chemical Engineering, University of Arkansas, Fayetteville, AR
Lauren F. Greenlee, Department of Chemical Engineering, University of Arkansas, Fayetteville, AR
Mojtaba Abolhassani, Department of Chemical Engineering, University of Arkansas, Fayetteville, AR

Citation

Griggs, C. S., Mattei-Sosa, J. A., Gurtowski, L. A., Greenlee, L. F., & Abolhassani, M. (2021). Chitosan-graphene oxide membranes. Patents Granted. Retrieved from https://scholarworks.uark.edu/pat/419