Synthesis and Characterization of Hollow Silica via PMMA as Template

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Submicrosized porous hollow silica spheres with a diameter of 350 nm and a shell thickness of approximately 10 nm were synthesized by a hydrothermal method using PMMA hollow particles as template. Through the hydrolysis of TEOS, a continuous and uniform coating of SiO2 was deposited over the surface of PMMA cores to form the core-shell structures. After calcining to remove the template, a pure hollow silica structure with holes in the shells was obtained. The as-prepared hollow products were characterized with TEM, SEM, EDS, BET and FT-IR. Its large surface area and hollow morphology will make this new material a promising agent for the applications of catalysts, controlled drug delivery and etc.

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Periodical:

Advanced Materials Research (Volumes 11-12)

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Edited by:

Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang

Pages:

551-554

Citation:

J. R. Song et al., "Synthesis and Characterization of Hollow Silica via PMMA as Template", Advanced Materials Research, Vols. 11-12, pp. 551-554, 2006

Online since:

February 2006

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$38.00

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