A novel (Zr–Ce) incorporated Ca(OH) 2 nanostructure as a durable adsorbent for CO 2 capture

Abstract A novel high-efficiency (Zr–Ce) incorporated Ca(OH) 2 nanostructure adsorbent for CO 2 capture was synthesized using calcium acetate monohydrate precursor containing n-hexadecyltrimethyl ammonium bromide and sodium hydroxide via a precipitation method. The cyclic carbonation/calcination performance of the novel adsorbent was investigated using a thermogravimetry-differential thermal analysis (TG-DTA) apparatus. The novel (Zr–Ce) incorporated Ca(OH) 2 adsorbent exhibited a significantly improved CO 2 adsorption capacity, cyclic stability and remarkable carbonation conversion up to ~96% for 14 carbonation/calcination cycles compared with the pure Ca(OH) 2 adsorbent. This result may be due to the large Brunauer–Emmett–Teller (BET) surface area (80.23 m 2 /g), the wide range of mesopore size distribution (2–30 nm) and the presence of the high temperature sintering resistance Ce 2 Zr 3 O 10 compound of the novel adsorbent.