A magnesian calcite type material was synthesized for the removal of carbon dioxide. The results from characterization, reactivity and CO2 capture capacity for different synthesis conditions are reported. In the synthesis process a magnesian calcite material CaCO3:MgCO3 is synthesized by the co-precipitation of specific amounts of commercially available CaO and MgO by carbon dioxide. Characterization was done with BET, SEM/EDS, particle size analysis, and XRD. The reactivity and capacity was measured using TGA cycles at 750, 800 and 850°C, and long term tests (50 cycles) was run on the optimal sample. Reaction cycles were carried out under 100% carbon dioxide and the regeneration cycles were run under nitrogen. The effects of CaO, MgO, and surfactant loading were studied to determine the maximum amount of carbon dioxide removal for the sorbents and correlated to particle size and pore distribution of the sorbents. The kinetics of the CO2 capture process in commercially available limestone and dolomite and those with laboratory synthesized calcium oxide and laboratory synthesized magnesian calcites are also presented.