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Preparation of mesoporous MgO: phenomena occurred during the calcination

Published online by Cambridge University Press:  25 October 2013

Pham Thanh Huyen ,
Emanuela Callone ,
Renzo Campostrini ,
Giovanni Carturan ,
Tran Thi Hong ,
Hoang Nam Nhat  and
Huynh Dang Chinh
Pham Thanh Huyen
Affiliation:
School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi, Vietnam
Emanuela Callone
Affiliation:
Department of Material Engineering and Industrial Technology, University of Trento, v. Mesiano 77, 38050 Povo-Trento, Italy
Renzo Campostrini
Affiliation:
Department of Material Engineering and Industrial Technology, University of Trento, v. Mesiano 77, 38050 Povo-Trento, Italy
Giovanni Carturan
Affiliation:
Department of Material Engineering and Industrial Technology, University of Trento, v. Mesiano 77, 38050 Povo-Trento, Italy
Tran Thi Hong*
Affiliation:
VNU University of Science, Hanoi, Vietnam
Hoang Nam Nhat
Affiliation:
Faculty of Technical Physics and Nanotechnology, VNU University of Engineering and Technology, Hanoi, Vietnam
Huynh Dang Chinh
Affiliation:
School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi, Vietnam
*
ae-mail: [email protected]
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Abstract

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.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 64 , Issue 1 , October 2013 , 10405
Copyright
© EDP Sciences, 2013

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