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Erschienen in: Journal of Materials Science: Materials in Electronics 3/2018

27.10.2017

Preparation and photocatalytic performance of ZnO/WO3/TiO2 composite coatings formed by plasma electrolytic oxidation

verfasst von: Honglei Qin, Li Chen, Xiwen Yu, Mingyue Wu, Zongcheng Yan

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 3/2018

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Abstract

ZnO/WO3/TiO2 composite coatings were prepared on titanium substrate in electrolyte solutions contained 14 g/L Na2PO3 + 2 g/L H3O40PW12·xH2O, with addition of 1.5 g/L ZnO nanoparticles by plasma electrolytic oxidation. The surface and cross section morphologies, elemental composition, phase structure, and degradation of methylene blue was conducted by SEM, EDX, XRD, and UV–Vis spectrophotometer, respectively. Results indicated the coatings were rough and porous. EDX showed the coatings mainly consisted of O, Ti, P, W, etc., and all elements were evenly dispersing on the coatings. The content of W and Zn and W:Zn ratio had a great influence on the photocatalytic activity. XRD patterns indicated coatings mainly consist of anatase and rutile titania. The coatings formed at 360 V for 30 min showed the highest activity; about 80% of the methylene blue was removed within 120 min under UV irradiation.

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Metadaten
Titel
Preparation and photocatalytic performance of ZnO/WO3/TiO2 composite coatings formed by plasma electrolytic oxidation
verfasst von
Honglei Qin
Li Chen
Xiwen Yu
Mingyue Wu
Zongcheng Yan
Publikationsdatum
27.10.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 3/2018
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-017-8119-4

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