Abstract On SiO2 nanoparticles of about 100 nm prepared by Stober method, additional layer of SiO2 was formed using non-ionic surfactant block copolymers as template agent. The core/shell nanoparticles could be precipitated out from the solution in the presence of phosphate inducer. Furthermore the template was removed by calcination to obtain the spherical mesoporous nanocarriers with uniform size. The nanocarrier was characterized by dynamic light scattering (DLS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), specific surface area measurements (BET), and nitrogen adsorption and desorption.The average effective size of nanocarriers is about 183 nm with 5.5 nm pore size and a good dispersion��PDI��0.076��. The specific surface area is as high as 158.6 m2/g and the pore volume is 0.22 cm3/g. These suggest this is a facile method to prepare nano-carriers simply and rapidly.����
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WANG Shu-Mei , GONG Jun-Bo,LI Shao-Hua, DONG Wei-Bing, GU Hui-Ke, FENG Fei.Synthesis and Characterization of Monodisperse Mesoporous Silica Nanocarrier[J] Chemcial Industry and Engineering, 2012,V29(5): 18-22
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2012, Vol. 29 
