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Chemical and Biochemical Engineering Quarterly, Vol. 29 No. 3, 2015.

Original scientific paper

https://doi.org/10.15255/CABEQ.2014.2071

Synthesis and Performance of Nanostructure Templated Silica Membranes Surface-modified by Two Different Procedures

F. Assa ; Nanostructure Material Research Center (NMRC), Chemical Engineering Faculty, Sahand University of Technology, Sahand New Town, Tabriz, Iran
A. A. Babaluo ; Nanostructure Material Research Center (NMRC), Chemical Engineering Faculty, Sahand University of Technology, Sahand New Town, Tabriz, Iran
K. Ghasemzadeh ; Nanostructure Material Research Center (NMRC), Chemical Engineering Faculty, Sahand University of Technology, Sahand New Town, Tabriz, Iran
M. A. Abdi ; Nanostructure Material Research Center (NMRC), Chemical Engineering Faculty, Sahand University of Technology, Sahand New Town, Tabriz, Iran
D. Kahforoushan ; Environmental Engineering Research Center (EERC), Chemical Engineering Faculty, Sahand University of Technology, Sahand New Town, Tabriz, Iran
A. Jabbari ; Nanostructure Material Research Center (NMRC), Chemical Engineering Faculty, Sahand University of Technology, Sahand New Town, Tabriz, Iran
M. J. Vaezi ; Nanostructure Material Research Center (NMRC), Chemical Engineering Faculty, Sahand University of Technology, Sahand New Town, Tabriz, Iran

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Abstract

In this study, the microporous silica membrane was prepared by the template assisted sol-gel method. The surface of the templated silica membranes was modified via two procedures; selective layer, and layer by layer surface modification. The obtained results confirmed that the surface modification procedure is very crucial to the final performance of the membrane. Thus, for the templated silica membrane modified by the first procedure, CO2/N2 permselectivity was achieved at 3.0 and CO2 permeance was 6.3×10–9 mol m–2 s–1 Pa–1, while for the templated silica membrane modified by the second procedure, the CO2/N2 permselectivity was achieved at 11.3 and CO2 permeance was 4.0×10–8 mol m–2 s–1 Pa–1, at room temperature.

Keywords

gas separation; carbon dioxide; templated silica membrane; sol-gel method; surface modification

Hrčak ID:

147007

URI

https://hrcak.srce.hr/147007

Publication date:

14.10.2015.

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