A comparative study of the photocatalytic efficiency of metal oxide/hydroxyapatite nanocomposites in the degradation kinetic of ciprofloxacin in water
| Autor: | I. Es-saidi, Didier Robert, Chaimaa El Bekkali, Jihane Labrag, H. Bouyarmane, Mohamed Khamar, Abdelaziz Laghzizil |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:GE1-350
Nanocomposite Materials science Oxide Sorption 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Soft chemistry Catalysis Metal chemistry.chemical_compound chemistry Chemical engineering visual_art Photocatalysis visual_art.visual_art_medium 0210 nano-technology Photodegradation lcsh:Environmental sciences 0105 earth and related environmental sciences |
| Zdroj: | E3S Web of Conferences, Vol 150, p 02006 (2020) |
| ISSN: | 2267-1242 |
| Popis: | The photocatalytic efficiency of the metal oxide-hydroxyapatite photocatalysts prepared by soft chemistry using phosphate rock as calcium and phosphorus precursors has been investigated on the degradation kinetic of ciprofloxacin residues in water under UV-light (HPK125 W Lamp). The nature of metal oxide (TiO2, ZnO, Fe2O3), structure, surface area and pore-size distributions of the catalysts were analyzed by various techniques analyses. Association of nanoscale metal oxide with hydroxyapatite could enhance the sorption properties of the materials and confers them interesting photodegradation properties. The results of the kinetic study revealed that the activities of these photocatalysts were dependent on the oxide surface and the best activity was obtained with TiO2/hydroxyapatite catalyst, which had the largest surface area. The effects of various operational parameters were thoroughly considered in order to achieve highest photodegradation efficiency. A correlation between the nature of associated metal oxide, surface properties, the sorption behavior and the photodegradation capacity of these composites could be establishedd. |
| Databáze: | OpenAIRE |
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