Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 129, Issue 1-2, Pages 106-111Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2009.09.004
Keywords
SBA-16; Spherical particles; Synthesis temperature; Morphology; F127
Ask authors/readers for more resources
Spherical particles of mesoporous Silica SBA-16 with cubic lm3m structure were synthesized at low pH using Pluronic F127 as template and TEOS as silica source. The diameter of the spherical particles can be controlled in the range of 0.5-8 mu m by varying synthesis temperature from 1 degrees C up to 40 degrees C. A sharp transition from large particle sizes at approximately 20 degrees C to smaller ones is observed when the temperature is increased. It is suggested that this morphology transition is due to a change in hydrolysis and condensation rate of the silica source and as a result the assembly of F127 micelles will differ. The SBA-16 samples were characterized using powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen adsorption techniques. (C) 2009 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available