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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 16/2017

09.05.2017

Preparation, characterization and photocatalytic properties of La/WO3 composites

verfasst von: Xiying Zhu, Pan Zhang, Bin Li, Qun Hu, Wenli Su, Lihui Dong, Fan Wang

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 16/2017

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Abstract

La/WO3 system were successfully built via a simply crystallization precipitation method using sodium tungstate and lanthanum nitrate hexahydrate as precursor. Samples were characterized by powder X-ray diffraction, UV–Vis absorbance spectroscopy, X-ray photoelectron spectroscopy, field emission scanning electron microscopy, and N2 adsorption–desorption isotherms (BET). Results showed that La does not enter into the crystal lattice of WO3 but located in the interstitial site and accordingly presented as the form of La–O–W in the interstitial site. In addition, doping of La restrict the grain size and the minimum crystal size was 28 nm at La:W = 3:10. Photocatalytic degradation of Rhodamine B showed that the modified samples had better catalytic performance. When La:W reaches 0.3, the La/WO3 nano-materials exhibits the highest photocatalytic activity, which can be attributed to the synergic effect of the higher BET surface area, surface hydroxyl content and optimum La contents. A possible mechanism for the photocatalytic degradation of RhB has also been provided.
Vorheriger Artikel Facile fabrication of rGO/CNT hybrid fibers for high-performance flexible supercapacitors
Nächster Artikel Thermal-cycling-induced surface roughening and structural change of a metal layer bonded to silicon nitride by active metal brazing

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Metadaten
Titel
Preparation, characterization and photocatalytic properties of La/WO3 composites
verfasst von
Xiying Zhu
Pan Zhang
Bin Li
Qun Hu
Wenli Su
Lihui Dong
Fan Wang
Publikationsdatum
09.05.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 16/2017
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-017-7030-3

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