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Growth process and morphology control of SBA-15 particles: synergistic effects of tetraethoxysilane and Pluronic-123 concentrations

Published online by Cambridge University Press:  21 November 2016

Kai Zhuang ,
Guangfu Yin ,
Ximing Pu ,
Xianchun Chen ,
Xiaoming Liao ,
Zhongbin Huang  and
Yadong Yao
Kai Zhuang
Affiliation:
College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
Guangfu Yin*
Affiliation:
College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
Ximing Pu
Affiliation:
College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
Xianchun Chen
Affiliation:
College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
Xiaoming Liao
Affiliation:
College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
Zhongbin Huang
Affiliation:
College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
Yadong Yao
Affiliation:
College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
*
Address all correspondence to Guangfu Yin at nic0700@scu.edu.cn
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Abstract

The synergistic effects of the template [Pluronic-123 (P123)] and the silica source [tetraethoxysilane (TEOS)] concentrations on the SBA-15 mesoporous silica morphology were investigated through adjusting the system initial solution volume with the same amounts of silica source and template. It found interestingly that the SBA-15 morphology changed from the hexagonal plate-like shape to the gear-like shape with the decrease of the P123 and TEOS concentration. Based on the morphology variations, the growth of the gear-like morphology was speculated to be formed through the preferential growth at the corner and the layer-by-layer growth in the end face of the ordinary hexagonal plate-like particle.

Type
Research Letters
Information
MRS Communications , Volume 6 , Issue 4 , December 2016 , pp. 449 - 454
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Copyright
Copyright © Materials Research Society 2016 

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