Massive carbon dioxide (CO2) emission has caused many environmental problems such as global warming and rising of sea levels [1,2]. It is therefore urgent to take measures to reduce CO2 emissions. Nowadays, commercial CO2 capture technology involves a chemical adsorption reaction between aqueous amine solution and CO2, which has many defects such as corrosion and high cost for regeneration [3]. Thus, adsorbing CO2 on solid adsorbents has received particular attention from scientists due to its low cost, simple operation, and clear process [4,5].