M Ghiasi - Facualty of Physics& Chemistry, Department of Chemistry, Alzahra University, Tehran, Iran
P Zeinali - Facualty of Physics& Chemistry, Department of Chemistry, Alzahra University, Tehran, Iran

In the present study the adsorption of some gas molecule such as H2S and CO2 on porousgraphene using first principles density functional theory calculation have been investigated.The adsorption geometries, adsorption energies, charge transfer and electronic bandstructures are obtained. The results of our study propose using porous graphene sheet ashighly efficient and highly selective membranes for gas separations.