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
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oai:doaj.org-article:ea7f5622f5e34a46a15d9ee91d9f37e02021-11-11T19:52:23ZImmobilization of TiO<sub>2</sub> Semiconductor Nanoparticles onto Posidonia Oceanica Fibers for Photocatalytic Phenol Degradation10.3390/w132129482073-4441https://doaj.org/article/ea7f5622f5e34a46a15d9ee91d9f37e02021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/2948https://doaj.org/toc/2073-4441A 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.Latifa MorjèneMichael SchwarzeMongi SeffenReinhard SchomäckerMinoo TasbihiMDPI AGarticle<i>Posidonia oceanica</i> fibersTiO<sub>2</sub>P25Photocatalysisphenol degradationcomposite materialHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 2948, p 2948 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
<i>Posidonia oceanica</i> fibers TiO<sub>2</sub> P25 Photocatalysis phenol degradation composite material Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
| spellingShingle |
<i>Posidonia oceanica</i> fibers TiO<sub>2</sub> P25 Photocatalysis phenol degradation composite material Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 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 |
| 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. |
| format |
article |
| 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 |
| title |
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_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_sort |
immobilization of tio<sub>2</sub> semiconductor nanoparticles onto posidonia oceanica fibers for photocatalytic phenol degradation |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/ea7f5622f5e34a46a15d9ee91d9f37e0 |
| work_keys_str_mv |
AT latifamorjene immobilizationoftiosub2subsemiconductornanoparticlesontoposidoniaoceanicafibersforphotocatalyticphenoldegradation AT michaelschwarze immobilizationoftiosub2subsemiconductornanoparticlesontoposidoniaoceanicafibersforphotocatalyticphenoldegradation AT mongiseffen immobilizationoftiosub2subsemiconductornanoparticlesontoposidoniaoceanicafibersforphotocatalyticphenoldegradation AT reinhardschomacker immobilizationoftiosub2subsemiconductornanoparticlesontoposidoniaoceanicafibersforphotocatalyticphenoldegradation AT minootasbihi immobilizationoftiosub2subsemiconductornanoparticlesontoposidoniaoceanicafibersforphotocatalyticphenoldegradation |
| _version_ |
1718431443104825344 |