MgO-loaded porous carbon for carbon dioxide sorption: Study on cyclic sorption–regeneration

MgO-containing porous carbon material prepared from natural magnesite and poly(ethylene terephthalate) was examined in cyclic CO2 sorption and thermal regeneration, using thermogravimetric method. Adsorption capacity toward the gas and porous structure of the sorbent after two cycles remained practically unchanged. However, a small mass loss of the hybrid material was noticed during each regeneration step. Reason of the loss is explained on the basis of thermogravimetric and temperature-programmed desorption measurements.