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

被引:0
|
作者
Alberto Quintana
Ainhoa Altube
Eva García-Lecina
Santiago Suriñach
Maria Dolors Baró
Jordi Sort
Eva Pellicer
Miguel Guerrero
机构
[1] Universitat Autònoma de Barcelona,Departament de Física, Facultat de Ciències
[2] IK4-CIDETEC,Surface Engineering Area
[3] Institució Catalana de Recerca i Estudis Avançats (ICREA),undefined
来源
Journal of Materials Science | 2017年 / 52卷
关键词
Zinc Oxide (ZnO); Amorphous ZrO; Cetyltrimethylammonium Bromide (CTAB); ZrO2 Amount; Photocatalytic Activity;
D O I
暂无
中图分类号
学科分类号
摘要
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.
引用
收藏
页码:13779 / 13789
页数:10
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