FESEM, TEM, HRTEM. DRS and N2 adsorption-desorption. The samples as-synthesized have the approximate diameter of 8-20nm, specific surface area of 150m2/g and the hexagonally packed mesostructures.

• XRD、FESEM、TEM、HRTEM、N2吸附-脱附和DRS等结果表明:纳米粒子的粒径为8-20nm,比表面积约为150 m2/g,介孔堆积具有六方特征;