Aqueous synthesis and enhanced photocatalytic activity of ZnO/Fe2O3 heterostructures
| Autor: | Myriam Ben Said, Ahmed Ghrabi, Abdelhay Aboulaich, Serge Corbel, Faouzi Achouri, Raphaël Schneider, Lavinia Balan |
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| Přispěvatelé: | Laboratoire Réactions et Génie des Procédés (LRGP), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL), Institut de Chimie de Clermont-Ferrand (ICCF), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Photomatériaux pour l'Optique et les Nanotechnologies (PHOTON LRC 7228), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2014 |
| Předmět: |
iron oxide
Materials science Scanning electron microscope charge separation Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences X-ray photoelectron spectroscopy General Materials Science Photodegradation Spectroscopy zinc oxide Heterojunction heterostructure [CHIM.MATE]Chemical Sciences/Material chemistry General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Chemical engineering Transmission electron microscopy Photocatalysis Diffuse reflection 0210 nano-technology photocatalysis |
| Zdroj: | Journal of Physics and Chemistry of Solids Journal of Physics and Chemistry of Solids, Elsevier, 2014, 75, pp.1081-1087. ⟨10.1016/j.jpcs.2014.05.013⟩ Journal of Physics and Chemistry of Solids, 2014, 75, pp.1081-1087. ⟨10.1016/j.jpcs.2014.05.013⟩ |
| ISSN: | 0022-3697 |
| Popis: | International audience; We report a facile synthesis of ZnO/Fe2O3 heterostructures based on the hydrolysis of FeCl3 in the presence of ZnO nanoparticles. The material structure, composition, and its optical properties have been examined by means of transmission electron microscopy, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and diffuse reflectance UV-visible spectroscopy. Results obtained show that 2.9 nm-sized Fe2O3 nanoparticles produced assemble with ZnO to form ZnO/Fe2O3 heterostructures. We have evaluated the photodegradation performances of ZnO/Fe2O3 materials using salicylic acid under UV-light. ZnO/Fe2O3 heterostructures exhibited enhanced photocatalytic capabilities than commercial ZnO due to the effective electron/hole separation at the interfaces of ZnO/Fe2O3 allowing the enhanced hydroxyl and superoxide radicals production from the heterostructure. |
| Databáze: | OpenAIRE |
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