Confined Space Synthesis of Mesoporous Silica Nanoparticles with a Three Dimensionally Ordered Close-packing Structure

WANG Jing; CHEN Huiyong

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Confined Space Synthesis of Mesoporous Silica Nanoparticles with a Three Dimensionally Ordered Close-packing Structure

WANG Jing,CHEN Huiyong * #

School of Chemical Engineering, Northwest University, Xi\'an, 710069

*Correspondence author

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Funding: Natural Science Foundation of China （No.No. 21576221, 21306151）, Specialized Research Fund for the Doctoral Program of Higher Education of China （No.No. 20136101120008）, Natural Science Foundation of Shaanxi （No.No. 2014JQ2054）

Opened online:31 December 2015

Accepted by: none

Citation: WANG Jing,CHEN Huiyong.Confined Space Synthesis of Mesoporous Silica Nanoparticles with a Three Dimensionally Ordered Close-packing Structure[OL]. [31 December 2015] http://en.paper.edu.cn/en_releasepaper/content/4673316

Mesoporous silica nanoparticles with a three dimensionally ordered close-packing structure (3DOc-p MSNs) were confined synthesis through steam-assisted crystallization treatment. With perfect replication from the three dimensionally ordered mesoporous carbon template, the obtained 3DOc-p MSNs presented a unique assembly structure of colloidal crystal composed of uniform mesoporous silica spherical particles with a controllable particle size ranged from 10 to 160 nm and various mesopore morphologies of hollow, multicellar, disordered wormlike, and ordered structure with the increasing of the confined space. Moreover, sonication induced fragmentation of 10, 20, and 40 nm 3DOc-p MSNs resulted in a clear suspension of highly monodispersed mesoporous silica nanoparticles with the corresponding particle size and mesopore structure.

Keywords:mesoporous silica nanoparticles; colloidal crystal; hard template; con?ned space synthesis; particle size control

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