Photocatalytic Nanocomposite Polymer-TiO<sub>2</sub> Membranes for Pollutant Removal from Wastewater
Photocatalytic TiO<sub>2</sub>-PVDF/PMMA nano-composites flat sheet membranes were fabricated by phase inversion and then employed in a crossflow filtration pilot to remove model pollutants of various sizes and charge from aqueous solution. The dope solution contained a mixture of PVDF a...
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MDPI AG
2021-03-01
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| author | Khelil Bouziane Errahmani Ouassila Benhabiles Sohbi Bellebia Zohra Bengharez Mattheus Goosen Hacene Mahmoudi |
| author_facet | Khelil Bouziane Errahmani Ouassila Benhabiles Sohbi Bellebia Zohra Bengharez Mattheus Goosen Hacene Mahmoudi |
| author_sort | Khelil Bouziane Errahmani |
| collection | DOAJ |
| description | Photocatalytic TiO<sub>2</sub>-PVDF/PMMA nano-composites flat sheet membranes were fabricated by phase inversion and then employed in a crossflow filtration pilot to remove model pollutants of various sizes and charge from aqueous solution. The dope solution contained a mixture of PVDF and PMMA as polymers, polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) as additives, triethyl phosphate (TEP) as green solvent and TiO<sub>2</sub> as immobilized photo catalyst. After undergoing characterization tests such as SEM morphology thickness, porosity, contact angle and water permeability, the membranes were used to eliminate the model pollutants from synthetic aqueous solution. The impact of the operating conditions (i.e., pH, pressure and initial pollutant concentration) and composition of the doping solution on the performance and photocatalytic and antifouling activity of the membranes was investigated. The results showed that Congo Red and Tartrazine despite their small size were rejected at 99% and 81%, respectively, because of their negative charge, while Ciprofloxacin, which is larger than Tartrazine but of neutral charge, crossed the membrane. The permeability did not decrease with a decline in pollutant concentration but diminished when the pressure increased and was reduced by more than half for wastewater. |
| first_indexed | 2024-03-10T13:00:14Z |
| format | Article |
| id | doaj.art-a66ca48312a14e97a4200ee2da29009e |
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| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T13:00:14Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
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| spelling | doaj.art-a66ca48312a14e97a4200ee2da29009e2023-11-21T11:36:27ZengMDPI AGCatalysts2073-43442021-03-0111340210.3390/catal11030402Photocatalytic Nanocomposite Polymer-TiO<sub>2</sub> Membranes for Pollutant Removal from WastewaterKhelil Bouziane Errahmani0Ouassila Benhabiles1Sohbi Bellebia2Zohra Bengharez3Mattheus Goosen4Hacene Mahmoudi5Laboratory of Advanced Materials and Physicochemistry for Environment and Health, Faculty of Exact Sciences, Djillali Liabes University Sidi Bel Abbes, P.O. Box 89, Sidi Bel Abbes 22000, AlgeriaUnité de Développement des Equipements Solaires, UDES/Centre de Développement des Energies Renouvelables, CDER, Bou Ismail, Tipaza 42004, AlgeriaLaboratory of Advanced Materials and Physicochemistry for Environment and Health, Faculty of Exact Sciences, Djillali Liabes University Sidi Bel Abbes, P.O. Box 89, Sidi Bel Abbes 22000, AlgeriaLaboratory of Advanced Materials and Physicochemistry for Environment and Health, Faculty of Exact Sciences, Djillali Liabes University Sidi Bel Abbes, P.O. Box 89, Sidi Bel Abbes 22000, AlgeriaOffice of Research & Graduate Studies, Alfaisal University, P.O. Box 50927, Riyadh 11533, Saudi ArabiaFaculty of Technology, University Hassiba Benbouali of Chlef, Chlef 02000, AlgeriaPhotocatalytic TiO<sub>2</sub>-PVDF/PMMA nano-composites flat sheet membranes were fabricated by phase inversion and then employed in a crossflow filtration pilot to remove model pollutants of various sizes and charge from aqueous solution. The dope solution contained a mixture of PVDF and PMMA as polymers, polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) as additives, triethyl phosphate (TEP) as green solvent and TiO<sub>2</sub> as immobilized photo catalyst. After undergoing characterization tests such as SEM morphology thickness, porosity, contact angle and water permeability, the membranes were used to eliminate the model pollutants from synthetic aqueous solution. The impact of the operating conditions (i.e., pH, pressure and initial pollutant concentration) and composition of the doping solution on the performance and photocatalytic and antifouling activity of the membranes was investigated. The results showed that Congo Red and Tartrazine despite their small size were rejected at 99% and 81%, respectively, because of their negative charge, while Ciprofloxacin, which is larger than Tartrazine but of neutral charge, crossed the membrane. The permeability did not decrease with a decline in pollutant concentration but diminished when the pressure increased and was reduced by more than half for wastewater.https://www.mdpi.com/2073-4344/11/3/402wastewater treatmentphoto catalytic micro ultra-filtrationPVDF/PMMA/TiO<sub>2</sub> nano composite membranesMWCO |
| spellingShingle | Khelil Bouziane Errahmani Ouassila Benhabiles Sohbi Bellebia Zohra Bengharez Mattheus Goosen Hacene Mahmoudi Photocatalytic Nanocomposite Polymer-TiO<sub>2</sub> Membranes for Pollutant Removal from Wastewater Catalysts wastewater treatment photo catalytic micro ultra-filtration PVDF/PMMA/TiO<sub>2</sub> nano composite membranes MWCO |
| title | Photocatalytic Nanocomposite Polymer-TiO<sub>2</sub> Membranes for Pollutant Removal from Wastewater |
| title_full | Photocatalytic Nanocomposite Polymer-TiO<sub>2</sub> Membranes for Pollutant Removal from Wastewater |
| title_fullStr | Photocatalytic Nanocomposite Polymer-TiO<sub>2</sub> Membranes for Pollutant Removal from Wastewater |
| title_full_unstemmed | Photocatalytic Nanocomposite Polymer-TiO<sub>2</sub> Membranes for Pollutant Removal from Wastewater |
| title_short | Photocatalytic Nanocomposite Polymer-TiO<sub>2</sub> Membranes for Pollutant Removal from Wastewater |
| title_sort | photocatalytic nanocomposite polymer tio sub 2 sub membranes for pollutant removal from wastewater |
| topic | wastewater treatment photo catalytic micro ultra-filtration PVDF/PMMA/TiO<sub>2</sub> nano composite membranes MWCO |
| url | https://www.mdpi.com/2073-4344/11/3/402 |
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