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Erschienen in: Journal of Materials Science 24/2017

24.08.2017 | Chemical routes to materials

A facile co-precipitation synthesis of heterostructured ZrO2|ZnO nanoparticles as efficient photocatalysts for wastewater treatment

verfasst von: Alberto Quintana, Ainhoa Altube, Eva García-Lecina, Santiago Suriñach, Maria Dolors Baró, Jordi Sort, Eva Pellicer, Miguel Guerrero

Erschienen in: Journal of Materials Science | Ausgabe 24/2017

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Abstract

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.

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Metadaten
Titel
A facile co-precipitation synthesis of heterostructured ZrO2|ZnO nanoparticles as efficient photocatalysts for wastewater treatment
verfasst von
Alberto Quintana
Ainhoa Altube
Eva García-Lecina
Santiago Suriñach
Maria Dolors Baró
Jordi Sort
Eva Pellicer
Miguel Guerrero
Publikationsdatum
24.08.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 24/2017
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1488-5

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