Saranya, R. and Kumar, M. and Tamilarasan, R. and Ismail, A. F. and Arthanareeswaran, G. (2016) Functionalised activated carbon modified polyphenylsulfone composite membranes for adsorption enhanced phenol filtration. Journal of Chemical Technology and Biotechnology, 91 (3). pp. 748-761. ISSN 0268-2575
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Abstract
BACKGROUND: Functionalized activated carbon (FAC) was prepared by immobilizing the activated carbon (AC) synthesized from Acacia fumosa seeds in cacium-alginate beads. Synthesized FAC has been blended with polyphenylsulfone (PPSU) in the composition of 0.25 to 1wt% with an increment of 0.25wt% to prepare composite membranes of PPSU/FAC by wet phase inversion method. The existence of FAC in PPSU was confirmed by Fourier transform infra-red spectroscopy (FTIR) studies by the presence of characteristic functional groups of FAC. The influence of FAC on adsorption enhanced rejection of phenol during membrane filtration has been investigated. RESULTS: The hydrophilicity of PPSU/FAC composite membranes has been improved by FAC as there was a profound reduction in contact angle from 71.8° to 43.8°. With the minimum loading of 0.25wt% of FAC in PPSU, the maximum adsorption of phenol has taken place suggesting that the better dispersion of minimal loading will offer higher accessibility to adsorptive sites. CONCLUSIONS: The adsorption of phenol on FAC was observed to be higher in PPSU/FAC composite membranes when compared with FAC being used solely as an adsorbent.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Activated carbon, Adsorption, Carbon, Filtration, Fourier transform infrared spectroscopy, Functional groups, Hydrophilicity, Membranes, Microfiltration, Phenols, Ultrafiltration, Adsorption of phenol, Adsorptive site, Calcium alginate, Fourier transform infra red (FTIR) spectroscopy, Membrane filtrations, Phenol removal, Polyphenylsulfone, Wet-phase inversion methods, Composite membranes, activated carbon, phenol derivative, polyphenylsulfone, sulfone derivative, unclassified drug, adsorption, Article, contact angle, dispersion, filtration, hydrophilicity, infrared spectroscopy, membrane, membrane filter, reduction, surface property |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering |
| ID Code: | 73856 |
| Deposited By: | Haliza Zainal |
| Deposited On: | 20 Nov 2017 02:15 |
| Last Modified: | 20 Nov 2017 02:15 |
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