A coagulation technique for purification of graphene sheets with graphene-reinforced PVA hydrogel as byproduct

J Colloid Interface Sci. 2010 Aug 15;348(2):384-7. doi: 10.1016/j.jcis.2010.04.054. Epub 2010 Apr 24.

Abstract

A simple and rapid coagulation method to separate graphene from partially or incompletely reduced graphene oxide is developed in this study. Our isolation technique is not only simple and effective but also can be applied to a quality control in graphene production. Interestingly, the byproduct of our technique is valuable graphene-reinforced PVA hydrogel.