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

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.

PVA mediated coagulation process for purification of graphene.Figure optionsDownload high-quality image (99 K)Download as PowerPoint slide