A facile co-precipitation synthesis of heterostructured ZrO<inf>2</inf>|ZnO nanoparticles as efficient photocatalysts for wastewater treatment

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

Research output: Contribution to journalArticleResearchpeer-review

6 Citations (Scopus)

Abstract

© 2017, Springer Science+Business Media, LLC. 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.
Original languageEnglish
Pages (from-to)13779-13789
JournalJournal of Materials Science
Volume52
Issue number24
DOIs
Publication statusPublished - 1 Dec 2017

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