HIGH FLUX HIGH EFFICIENCY NANOFIBER MEMBRANES AND METHODS OF PRODUCTION THEREOF

摘要

A membrane is provided including a coating layer having cellulose nanofibers produced from oxidized cellulose microfibers and an electrospun substrate upon which the coating layer is applied. The nanofibers of the electrospun substrate have a diameter greater than that of the cellulose nanofibers. The membrane also has non-woven support upon which the electrospun substrate is disposed. Microfibers of the non-woven support have a diameter greater than that of the nanofibers of the electrospun substrate. Application of electrospun membrane is in microfiltration area, while the cellulose nanofiber membrane serves in ultrafiltration, nanofiltration, and reverse osmosis after chemical modification.

主权项

1. A membrane comprising:
a coating layer comprising a mixture of nanofibers comprising PolyVinyl Alcohol (PVA) and cellulose, wherein the nanofibers are cross-linked; an electrospun substrate upon which the coating layer is applied, wherein nanofibers of the electrospun substrate have diameters greater than that of the nanofibers of the coating layer; and a non-woven support upon which the electrospun substrate is disposed, wherein microfibers of the non-woven support have diameters greater than that of the nanofibers of the electrospun substrate.