Highly selective CO2 adsorption of ZnO based N-doped reduced graphene oxide porous nanomaterial

A novel N-rGO-ZnO hybrid material was successfully synthesized by a two-step method and it exhibited large CO2 adsorption ability of 3.55 mmol/g at 298 K and 1 atm. Importantly, the CO2/N2 selectivity of N-rGO-ZnO was high up to be 35.84 determined by a slope method at 298 K.