Preparation of mixed matrix membrane using cellulose acetate incorporated with synthesized KIT-6 silica
| Autor: | S.H. Ding, T.L. Chew, P.C. Oh, A.L. Ahmad, Z.A. Jawad |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Journal of Mechanical Engineering and Sciences, Vol 12, Iss 1, Pp 3505-3514 (2018) |
| Druh dokumentu: | article |
| ISSN: | 2289-4659 2231-8380 |
| DOI: | 10.15282/jmes.12.1.2018.17.0311 |
| Popis: | There is increasing interest among researchers to develop Mixed Matrix Membranes (MMMs), by incorporating fillers in polymer membranes. However, these membranes always suffer from a trade-off between permeability and selectivity as proven by Robeson in upper bound curves developed in gas separation applications. In current project, mesoporous silica, KIT-6 was synthesized and followed by incorporation of KIT-6 as filler into cellulose acetate (CA) matrix to form MMMs. The fabrications of MMMs were done by using dry phase inversion method. The KIT-6 loadings in the MMMs were varied from 2 to 10 wt%. The properties of KIT-6 and membranes were characterized with Scanning electron microscopy (SEM), Fourier transform infrared (FTIR), X-ray diffraction (XRD) and thermal gravimetric analysis (TGA). The effect of KIT-6 loadings on the properties of the formed MMMs was investigated. XRD and FTIR results suggested that KIT-6 mesoporous silica is successfully synthesized. The TGA curve indicate the overall weight loss of 3.02 % for KIT-6 and 72.29-86.77 % for all the membranes. The successful incorporation of silica particles into CA polymer matrix is confirmed by FTIR spectrum while MMMs images from SEM suggested that KIT-6 silica powder could embed well with CA polymer matrix. Defect-free MMMs could be fabricated and potential to be use in future especially in gas separation. |
| Databáze: | Directory of Open Access Journals |
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