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A facile method to fabricate a series of micrometer scale hollow silica spheres
Authors:Maozhen Xu  Mingxia Du  Yibin Yin  Limin Zhao  Xipeng Pu
Affiliation:a College of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China
b Renewable Energy & Eco-Materials Engineering Center, Liaocheng University, Liaocheng 252059, China
Abstract:Hollow silica spheres (HSS) with the controllable diameters of 1.0 to 5.0 μm were successfully synthesized by adjusting the initial doubly distilled water volume in mixed ethanol-water solvent based on a complex approach that dispersion polymerization coexisted with a sol-gel process. The size of the HSS was uniform and the surface of the shell was smooth as observed by SEM. The FT-IR spectrum indicated that the inside core was completely removed. The thermal property and the compositions of core-shell spheres were investigated by TG-DSC.
Keywords:Hollow silica sphere   Porosity   Dispersion polymerization   Sol-gel preparation
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