Rakesh Joshi
School of Materials Science and Engineering University of New South Wales, Australia
Title: Graphene oxide: the new membrane material
Biography
Biography: Rakesh Joshi
Abstract
Membranes for desalination are in strong demand, with the filtration rate being a key issue for membrane performance. Graphene oxide has recently emerged as a new membrane material with excellent filtration properties. It is a compound of carbon, oxygen and hydrogen in variable ratio that mainly depends on synthesis procedure. It can be prepared from graphite by introducing oxygenated functionalities using strong oxidizing agents. These functionalities not only expand the layer separation between two stacked layers but also make the material hydrophilic. I will discuss my recent work on graphene oxide based membranes for filtration.