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Proceedings Paper

Textural properties of Fe-SBA-15 nanostructured materials by controlling aging time of hydrothermal synthesis
Author(s): Khieu Quang Dinh; Phuong Tuyet Dang; Son Thanh Le; Phu Huu Nguyen
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Paper Abstract

Iron-substituted SBA-15 materials (Fe-SBA-15) have been synthesized via a hydrothermal method with in situ incorporation of Fe(III) oxalate complex under strong acidic conditions. By employing the characterization techniques of XRD, UV-Vis, AAS and the physical adsorption of N2 in combination with αs-plot method, the textural properties of Fe-SBA-15 materials with different aging time spans of hydrothermal synthesis were investigated. The resulting Fe-SBA-15 samples exhibited highly ordered mesoporous materials. As the aging time extends over a certain value, the textural properties and amount of Fe incorporated to SBA-15 changed dramatically. The total surface areas increased due to the significant increase in the micropore after the 24-hour aging time, however, the wall thickness of the mesopore and the amount of iron formed in Fe-SBA-15 declined remarkably. The desired textural properties and high amount of Fe incorporated into SBA-15 could be attained by controlling the aging time of synthesized gel. The obtained Fe-SBA-15 materials demonstrated an excellent catalytic activity in the total oxidation of phenylsulfonephthalein (phenol red).

Paper Details

Date Published: 20 December 2006
PDF: 9 pages
Proc. SPIE 6415, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems III, 641519 (20 December 2006); doi: 10.1117/12.695738
Show Author Affiliations
Khieu Quang Dinh, Hue Univ. (Vietnam)
Phuong Tuyet Dang, Vietnamese Academy of Science and Technology (Vietnam)
Son Thanh Le, Hue Univ. (Vietnam)
Phu Huu Nguyen, Vietnamese Academy of Science and Technology (Vietnam)

Published in SPIE Proceedings Vol. 6415:
Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems III
Jung-Chih Chiao; Andrew S. Dzurak; Chennupati Jagadish; David Victor Thiel, Editor(s)

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