Immobilization of TiO<sub>2</sub> Semiconductor Nanoparticles onto Posidonia Oceanica Fibers for Photocatalytic Phenol Degradation
A new composite photocatalyst called POF/TiO<sub>2</sub> was prepared from commercial P25 TiO<sub>2</sub> and <i>Posidonia oceanica</i> fibers (POF), a biomaterial collected from Tunisia’s beach. The composite material was prepared by a classical sol-gel synthesis...
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MDPI AG
2021-10-01
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| Online Access: | https://www.mdpi.com/2073-4441/13/21/2948 |
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| author | Latifa Morjène Michael Schwarze Mongi Seffen Reinhard Schomäcker Minoo Tasbihi |
| author_facet | Latifa Morjène Michael Schwarze Mongi Seffen Reinhard Schomäcker Minoo Tasbihi |
| author_sort | Latifa Morjène |
| collection | DOAJ |
| description | A new composite photocatalyst called POF/TiO<sub>2</sub> was prepared from commercial P25 TiO<sub>2</sub> and <i>Posidonia oceanica</i> fibers (POF), a biomaterial collected from Tunisia’s beach. The composite material was prepared by a classical sol-gel synthesis and was characterized by different methods. SEM images show a TiO<sub>2</sub> layer formed on top of the fibers, which was verified by XRD and XPS. Diffuse reflectance UV-vis spectroscopy shows that the layer has the same optical properties (Eg = 3.0 eV) as bulk P25. The photodegradation of phenol as a model compound was studied under different operating conditions using POF/TiO<sub>2</sub> and the results show degradation efficiencies between 4% (100 ppm) and 100% (<25 ppm) after 4 h of UV-C light irradiation (254 nm) using a POF/TiO<sub>2</sub> concentration of about 1 g/L. The composite material showed good stability and could be recycled up to three times. |
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| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T05:49:33Z |
| publishDate | 2021-10-01 |
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| spelling | doaj.art-ea7f5622f5e34a46a15d9ee91d9f37e02023-11-22T21:53:03ZengMDPI AGWater2073-44412021-10-011321294810.3390/w13212948Immobilization of TiO<sub>2</sub> Semiconductor Nanoparticles onto Posidonia Oceanica Fibers for Photocatalytic Phenol DegradationLatifa Morjène0Michael Schwarze1Mongi Seffen2Reinhard Schomäcker3Minoo Tasbihi4Laboratory of Energy and Materials (LABEM), High School of Sciences and Technology of Hammam Sousse, Sousse University-Tunisia, Hammam, Hammam Sousse 4011, TunisiaDepartment of Chemistry, Technische Universität Berlin, TC 8, Straße des 17. Juni 124, 10623 Berlin, GermanyLaboratory of Energy and Materials (LABEM), High School of Sciences and Technology of Hammam Sousse, Sousse University-Tunisia, Hammam, Hammam Sousse 4011, TunisiaDepartment of Chemistry, Technische Universität Berlin, TC 8, Straße des 17. Juni 124, 10623 Berlin, GermanyDepartment of Chemistry, Technische Universität Berlin, TC 8, Straße des 17. Juni 124, 10623 Berlin, GermanyA new composite photocatalyst called POF/TiO<sub>2</sub> was prepared from commercial P25 TiO<sub>2</sub> and <i>Posidonia oceanica</i> fibers (POF), a biomaterial collected from Tunisia’s beach. The composite material was prepared by a classical sol-gel synthesis and was characterized by different methods. SEM images show a TiO<sub>2</sub> layer formed on top of the fibers, which was verified by XRD and XPS. Diffuse reflectance UV-vis spectroscopy shows that the layer has the same optical properties (Eg = 3.0 eV) as bulk P25. The photodegradation of phenol as a model compound was studied under different operating conditions using POF/TiO<sub>2</sub> and the results show degradation efficiencies between 4% (100 ppm) and 100% (<25 ppm) after 4 h of UV-C light irradiation (254 nm) using a POF/TiO<sub>2</sub> concentration of about 1 g/L. The composite material showed good stability and could be recycled up to three times.https://www.mdpi.com/2073-4441/13/21/2948<i>Posidonia oceanica</i> fibersTiO<sub>2</sub>P25Photocatalysisphenol degradationcomposite material |
| spellingShingle | Latifa Morjène Michael Schwarze Mongi Seffen Reinhard Schomäcker Minoo Tasbihi Immobilization of TiO<sub>2</sub> Semiconductor Nanoparticles onto Posidonia Oceanica Fibers for Photocatalytic Phenol Degradation Water <i>Posidonia oceanica</i> fibers TiO<sub>2</sub> P25 Photocatalysis phenol degradation composite material |
| title | Immobilization of TiO<sub>2</sub> Semiconductor Nanoparticles onto Posidonia Oceanica Fibers for Photocatalytic Phenol Degradation |
| title_full | Immobilization of TiO<sub>2</sub> Semiconductor Nanoparticles onto Posidonia Oceanica Fibers for Photocatalytic Phenol Degradation |
| title_fullStr | Immobilization of TiO<sub>2</sub> Semiconductor Nanoparticles onto Posidonia Oceanica Fibers for Photocatalytic Phenol Degradation |
| title_full_unstemmed | Immobilization of TiO<sub>2</sub> Semiconductor Nanoparticles onto Posidonia Oceanica Fibers for Photocatalytic Phenol Degradation |
| title_short | Immobilization of TiO<sub>2</sub> Semiconductor Nanoparticles onto Posidonia Oceanica Fibers for Photocatalytic Phenol Degradation |
| title_sort | immobilization of tio sub 2 sub semiconductor nanoparticles onto posidonia oceanica fibers for photocatalytic phenol degradation |
| topic | <i>Posidonia oceanica</i> fibers TiO<sub>2</sub> P25 Photocatalysis phenol degradation composite material |
| url | https://www.mdpi.com/2073-4441/13/21/2948 |
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