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Multilayer assembled CS-PSS/ceramic hollow fiber membranes for pervaporation dehydration
- Source :
- Separation and Purification Technology. 203:84-92
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Pervaporation (PV) is an effective approach for the removal of trace or micro substances from solutions. PV membrane is considered to be the most essential element for this process. In this study, the fabrication of ceramic hollow fiber PV membranes is demonstrated through multilayer assembly of poly(4-styrenesulfonic acid) and chitosan. The surface and cross-section morphologies, physical and chemical structures as well as the hydrophilicity of the membranes were characterized by field emission scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectrophotometer (FTIR) and water contact angle, respectively. The PV performance of the composite membranes was investigated by dehydration of water-ethanol solution. The effect of assembly solution concentration on PV performance was studied systematically. The assembled composite membranes with the concentration of 0.75 wt% PSS solution exhibited the highest PV separation index (PSI) value of 4.47 × 105 with flux of 495 g/m2 h and separation factor of 904 for dehydration of 10 wt% water-ethanol solution at 70 °C.
- Subjects :
- Materials science
Fabrication
Infrared spectroscopy
Filtration and Separation
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Analytical Chemistry
Contact angle
Membrane
Chemical engineering
visual_art
visual_art.visual_art_medium
Ceramic
Fiber
Pervaporation
Fourier transform infrared spectroscopy
0210 nano-technology
Subjects
Details
- ISSN :
- 13835866
- Volume :
- 203
- Database :
- OpenAIRE
- Journal :
- Separation and Purification Technology
- Accession number :
- edsair.doi...........1e1ac1db2b5a00655b20a071a5561a11