Porous graphene rejecting a chloride ion - a closeup view

Watch a molecular-scale closeup video of a salt ions being rejected from a new type of desalination membrane in a Molecular Dynamics simulation. This animation shows the filtration process that happens when you apply pressure to a saltwater solution against a nanoporous graphene membrane. The large green and pink balls represent salt (sodium and chloride), and the saltwater (right side) is purified into clean water (left side) through the membrane. Courtesy of David Cohen-Tanugi and the Jeffrey C. Grossman Group @ MIT. Find more information about our research at and ~dctanugi.