Synthesis of WO3 nanorods through anodization in the presence of citric acid: Formation mechanism, properties and photoelectrocatalytic performance

被引：14
|
作者：
Fernandez-Domene, R. M. [1 ]
Rosello-Marquez, G. [2 ]
Sanchez-Tovar, R. [1 ]
Cifre-Herrando, M. [2 ]
Garcia-Anton, J. [2 ]
机构：
[1] Univ Valencia, Dept Ingn Quim, Av Univ S-N, Burjassot 46100, Spain
[2] Univ Politecn Valencia, Inst Univ Seguridad Ind Radiofis & Medioambiental, Ingn Electroquim & Corros IEC, Camino Vera S-N, Valencia 46022, Spain
来源：
SURFACE & COATINGS TECHNOLOGY | 2021年 / 422卷
关键词：
WO3; nanostructures; Anodization; Citric acid; Photoelectrocatalysis; Pesticide degradation; TUNGSTEN-OXIDE FILMS; PHOTOCATALYTIC ACTIVITY; THIN-FILMS; PHOTOELECTROCHEMICAL PROPERTIES; ANNEALING TEMPERATURE; FACILE FABRICATION; WATER OXIDATION; PASSIVE FILMS; TRIOXIDE; MORPHOLOGY;
D O I：
10.1016/j.surfcoat.2021.127489
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, WO3 nanomds have been fabricated by simple anodization in the presence of different amounts of citric acid and at different anodization times. A comprehensive morphological, structural, electrochemical and photoelectrochemical characterization of different samples has been carried out. Moreover, a formation mechanism for WO3 nanorods has been proposed. Finally, these nanostructures have been proven to be excellent visible-light photoelectrocatalysts to remove persistent organic pollutants present in wastewaters, such as fenamiphos. Almost the 80% of this molecule was eliminated from the test solution after 180 min of irradiation, indicating the great potential of these WO3 nanorods, fabricated following a very simple and unexpensive procedure, in the energy and environmental fields as photoelectrocatalysts.
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页数：15
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