A facile co-precipitation synthesis of heterostructured ZrO2|ZnO nanoparticles as efficient photocatalysts for wastewater treatment
| Autor: | Jordi Sort, Miguel Guerrero, Alberto Manuel Quintana, Ainhoa Altube, Santiago Suriñach, Eva García-Lecina, Eva Pellicer, Maria Dolors Baró |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Coprecipitation Mechanical Engineering Nanoparticle Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Amorphous solid chemistry.chemical_compound X-ray photoelectron spectroscopy chemistry Chemical engineering Mechanics of Materials Bromide Rhodamine B Photocatalysis General Materials Science 0210 nano-technology Wurtzite crystal structure |
| Zdroj: | Journal of Materials Science. 52:13779-13789 |
| ISSN: | 1573-4803 0022-2461 |
| Popis: | ZrO2-decorated ZnO (ZrO2|ZnO) nanoparticles (NPs) have been synthesized by a facile co-precipitation method in the presence of cetyltrimethylammonium bromide (CTAB) surfactant. The ZrO2 amount in the NPs has been varied from 1.0, 2.0, 4.9, to 9.3% by weight. The resulting NPs are heterostructured and consist of a crystalline ZnO core (wurtzite phase) surrounded by an amorphous ZrO2 layer. X-ray diffraction analyses support this observation. The NPs show a narrow size distribution and are slightly elongated. Compared to pure ZnO NPs, the hybrid ZrO2|ZnO ones show enhanced photocatalytic activity toward the degradation of Rhodamine B under UV–Vis light. Such enhancement has been partly attributed to the increased amount of oxygen vacancies when ZrO2 is incorporated into the NPs, as shown by X-ray photoelectron spectroscopy analyses. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|