One-Pot Synthesis of Mesoporous Hollow Silica Nanospheres(MHSNS) by Templating Calcium Carbonate

Mesoporous hollow silica nanospheres(MHSNS) with an average diameter of 100 nm and wall thickness of approximately 10 nm were synthesized via core-shell structure of CaCO3@SiO2 by a one-pot route. Hollow silica nanospheres with mesoporous shell were obtained by dissolving CaCO3 in HCl dilute solution. The characterization of as-prepared hollow products by BET indicates that MHSNS have a specific surface area of 865 m2/g and a narrow pore size of 3.78 nm.