Benjamin S. Hsiao


Chemistry Department
Center for Advanced Technology in Integrated Electric Energy Systems
Stony Brook University
Stony Brook, NY 11794, U.S.A.


The fabrication of nanocellulose fibrous scaffolds can be accomplished by chemical and mechanical processes of cellulose from natural resources, where some sources can provide “effortless extractability” with very low energy consumption. Nanofibrous scaffolds have very unique properties including interconnected pores, a very large surface-to-volume ratio and a high capacity for surface modifications, making them ideal candidates for fabrication of high throughput separation membranes (e.g. microfiltration and ultrafiltration) and/or highly efficient sorptive media. Directed water channels in the barrier layer of reverse osmosis and nanofiltration membranes can also be formed through the formation of interface between the nanofibers and barrier layer polymer matrix, while the gap thickness can be regulated by physical interactions or chemical bonding. In the present context, advances in fundamental studies on cellulose microfibrils, the building block from the cell wall of any plant, and their interactions with metal ions by means of synchrotron x-ray and neutron techniques have provided us with new insight into the design and fabrication of highly permeable nanofibrous membranes, having a hierarchically tiered structure, that can enable higher flux, higher retention and lower energy consumption water purification.  Nanocelluloses may serve as a revolutionary platform technology for the design and fabrication of low cost, sustainable and highly efficient filtration and sorptive media.


Biographic Details

Name Benjamin S. Hsiao
Title: Distinguished Professor
Affiliation, Country: Chemistry Department, Stony Brook University, USA
Phone: +16316327793 Fax: +16316326518 E-mail:
Research interests: polymers, water purification


AEB 301