Eur. Phys. J. Appl. Phys.
Volume 64, Number 1, October 2013
International Workshop on Advanced Materials and Nanotechnology 2012 (IWAMN 2012)
|Number of page(s)||4|
|Section||Nanomaterials and Nanotechnologies|
|Published online||25 October 2013|
Preparation of mesoporous MgO: phenomena occurred during the calcination*
School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi, Vietnam
2 Department of Material Engineering and Industrial Technology, University of Trento, v. Mesiano 77, 38050 Povo-Trento, Italy
3 VNU University of Science, Hanoi, Vietnam
4 Faculty of Technical Physics and Nanotechnology, VNU University of Engineering and Technology, Hanoi, Vietnam
a e-mail: email@example.com
Revised: 21 July 2013
Accepted: 23 September 2013
Published online: 25 October 2013
Mesoporous MgO has been synthesized in the presence of the neutral block co-polymer surfactant Pluronic F127. The characterization of synthesized material was carried out by mean of X-ray diffraction (XRD), scanning electron microscope (SEM) and Brunauer-Emmett-Teller technique (BET). The obtained MgO exhibited a value of the surface area of 157 m2/g and showed a narrow pore size distribution centered at 4.3 nm. The phenomena and gas evolved during calcinations have been investigated by thermogravimeter-mass spectrometer (TG-MS). During the calcinations, the precursor Mg(OH)2 was converted to MgO with a mass loss of 29% and with the formation of H2O (>60% of the gas evolved). The desorption of CO2 and a small amount of CO and/or N2 which were adsorbed from air on the surface of Mg(OH)2 were also observed. No organic compounds were found which indicated that F127 was completely removed by Soxhlet extraction.
© EDP Sciences, 2013
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