Surface modification of AMH-3 for development of mixed matrix membrane
AMH-3 layered silicate is an attractive material for gas separation applications due to its 3D structure with crystallographic pore size of 3.4 Å. Nevertheless, AMH-3 is strongly hydrophilic due to the presence of cations between the silicate layers. Therefore, surface modification of AMH-3 is nec...
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my.utp.eprints.122812017-11-28T04:45:08Z Surface modification of AMH-3 for development of mixed matrix membrane Oh , P.C. Elaine, C.N.T. AMH-3 layered silicate is an attractive material for gas separation applications due to its 3D structure with crystallographic pore size of 3.4 Å. Nevertheless, AMH-3 is strongly hydrophilic due to the presence of cations between the silicate layers. Therefore, surface modification of AMH-3 is necessary in order to enhance its compatibility with hydrophobic polymer matrix of membranes. In this study, AMH-3 layered silicate was synthesized via hydrothermal synthesis method and functionalized with octyl(methyl)dimethyoxysilane to enhance its hydrophobicity, thereby improve adhesion and dispersion in mixed matrix membrane (MMM). The as-synthesized and functionalized AMH-3 were characterized with analytical tools such as FT-IR, XRD, SAP and contact angle. Functionalized AMH-3 showed higher surface area but reduced pore size. It also exhibited improved hydrophobicity compared to as-synthesized AMH-3. Flat sheet PSf/AMH-3 membranes were subsequently prepared by dry/wet phase inversion technique with varying AMH-3 loadings (1, 3 and 5 wt.%). As apparent from the thermogravimetric analysis, as-synthesized and functionalized AMH-3 showed no significant effect on the thermal stability and decomposition temperatures of the resultant MMMs. The synthesized membranes exhibited similar surface and cross-sectional morphologies with good distribution and dispersion of inorganic filler. Functionalized AMH-3 showed improved hydrophobicity, which results in enhanced compatibility and adhesion with the hydrophobic PSf polymer matrix. 2016 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/12281/1/1-s2.0-S1877705816309109-main.pdf Oh , P.C. and Elaine, C.N.T. (2016) Surface modification of AMH-3 for development of mixed matrix membrane. [Citation Index Journal] http://eprints.utp.edu.my/12281/ |
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AMH-3 layered silicate is an attractive material for gas separation applications due to its 3D structure with crystallographic pore size of 3.4 Å. Nevertheless, AMH-3 is strongly hydrophilic due to the presence of cations between the silicate layers. Therefore, surface modification of AMH-3 is necessary in order to enhance its compatibility with hydrophobic polymer matrix of membranes. In this study, AMH-3 layered silicate was synthesized via hydrothermal synthesis method and functionalized with octyl(methyl)dimethyoxysilane to enhance its hydrophobicity, thereby improve adhesion and dispersion in mixed matrix membrane (MMM). The as-synthesized and functionalized AMH-3 were characterized with analytical tools such as FT-IR, XRD, SAP and contact angle. Functionalized AMH-3 showed higher surface area but reduced pore size. It also exhibited improved hydrophobicity compared to as-synthesized AMH-3. Flat sheet PSf/AMH-3 membranes were subsequently prepared by dry/wet phase inversion technique with varying AMH-3 loadings (1, 3 and 5 wt.%). As apparent from the thermogravimetric analysis, as-synthesized and functionalized AMH-3 showed no significant effect on the thermal stability and decomposition temperatures of the resultant MMMs. The synthesized membranes exhibited similar surface and cross-sectional morphologies with good distribution and dispersion of inorganic filler. Functionalized AMH-3 showed improved hydrophobicity, which results in enhanced compatibility and adhesion with the hydrophobic PSf polymer matrix. |
| format |
Citation Index Journal |
| author |
Oh , P.C. Elaine, C.N.T. |
| spellingShingle |
Oh , P.C. Elaine, C.N.T. Surface modification of AMH-3 for development of mixed matrix membrane |
| author_facet |
Oh , P.C. Elaine, C.N.T. |
| author_sort |
Oh , P.C. |
| title |
Surface modification of AMH-3 for development of mixed matrix membrane |
| title_short |
Surface modification of AMH-3 for development of mixed matrix membrane |
| title_full |
Surface modification of AMH-3 for development of mixed matrix membrane |
| title_fullStr |
Surface modification of AMH-3 for development of mixed matrix membrane |
| title_full_unstemmed |
Surface modification of AMH-3 for development of mixed matrix membrane |
| title_sort |
surface modification of amh-3 for development of mixed matrix membrane |
| publishDate |
2016 |
| url |
http://eprints.utp.edu.my/12281/1/1-s2.0-S1877705816309109-main.pdf http://eprints.utp.edu.my/12281/ |
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1738656031216500736 |
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13.211869 |