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Updated: Jun 21, 2026

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices
Published on: March 27, 2019
Facile synthesis of mesoporous SBA-15 silica spheres and its application for high-performance liquid chromatography
Huihui Wan1, Lin Liu, Cunman Li
1Key Lab of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
Abstract:
Micrometer-sized mesoporous SBA-15 silica spheres have been synthesized using triblock copolymer poly(ethyleneoxide)-block-poly(propyleneoxide)-block-poly(ethyleneoxide) (EO(20)PO(70)EO(20)) as structure-directing agent with the assistance of 1,3,5-trimethylbenzene and KCl. By controlling the composition of synthesis gel, SBA-15 silica spheres with particle size in the range of 2-4.5 microm could be facilely obtained. The obtained SBA-15 silica spheres were characterized by X-ray diffraction, scanning electron microscopy, and N(2) physisorption technique. Dimethyloctadecylchlorosilane modified mesoporous SBA-15 silica with diameter of 4.5 microm was explored as stationary phase in high-performance liquid chromatography, and its chromatographic characteristics for separation of some small molecules and relatively large bio-molecules have been studied.
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