A Novel Dual Layered Hydrophobic/Hydrophilic Composite Tri-bore Hollow Fiber Membrane for Vacuum Membrane Distillation-Preparation and Evaluation | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 66, Issue 11, November 2023, Page 327-344 PDF (1.34 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2022.153982.6720 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Eman Farag   1; Reem Ettouney 2; Elham El-Zanati3; Mahmoud El-Rifai2
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| 1Chemical engineering and pilot plant department, engineering research and renewable energy institute,national research centre | ||||
| 2Chemical Engineering Department, Faculty of Engineering, Cairo University, Giza, Egypt | ||||
| 3Chemical Engineering and Pilot Plant Department, Engineering Research Division, National Research Centre, Dokki, Giza, Egypt. Postal cod 12622 | ||||
| Abstract | ||||
| Polyvinylidene fluoride (PVDF) was used to create microporous, hydrophobic/hydrophilic dual-layer, tri-bore hollow fiber membranes under various operating conditions and with various polymeric dope compositions. Nanoparticles of silicon dioxide and titanium dioxide were added to both the outer and interior layers. To produce fibers with various morphologies, the concentration of SiO2 nano powder in the inner dope solution was changed. The created membranes were examined under a microscope to determine their shape, level of roughness (AFM), contact angle, and mechanical characteristics. The produced membrane's suitability for vacuum membrane distillation (VMD) is assessed. This study aims to relate the polymeric dope composition and spinning conditions to the preparation parameters, namely the hydrophobic/hydrophilic tri-bore hollow fiber membrane flux. | ||||
| Keywords | ||||
| triple orifice; hydrophobic/hydrophilic dual-layer membrane; multi-bore hollow fibers; membrane distillation; nanoparticles | ||||
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