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Journal of Materials Science
Erschienen in: Journal of Materials Science 10/2018

01.02.2018 | Energy materials

Facile synthesis of Ni-doping Bi2WO6 nano-sheets with enhanced adsorptive and visible-light photocatalytic performances

verfasst von: Lei Xiang, Lei Chen, Ce-Hui Mo, Lian-Ming Zheng, Zhong-Xiong Yu, Yan-Wen Li, Quan-Ying Cai, Hui Li, Wei-Dong Yang, Dong-Mei Zhou, Ming-Hung Wong

Erschienen in: Journal of Materials Science | Ausgabe 10/2018

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Abstract

Bi2WO6 nano-sheets doped with various amounts of nickel (Ni) were prepared by hydrothermal method, and their microstructure and photocatalytic performance for degrading rhodamine B (RhB) and ciprofloxacin (CIP) under simulated solar light irradiation were investigated. The effective incorporation of Ni atoms in Bi2WO6 was confirmed by energy-dispersive spectroscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and Raman spectroscopy. Ni-doping decreased the crystallite size of Bi2WO6 and improved its specific surface area and surface electrical property. Furthermore, Ni atoms acting as electron traps facilitated the separation of photo electron–hole pairs. Accordingly, both adsorptive and photocatalytic performances of the Ni–Bi2WO6 were improved compared to undoping Bi2WO6. The 0.15-Ni–Bi2WO6 (Ni/W, molar ratio) displayed the best adsorptive and photocatalytic activities among the Bi2WO6 samples doped with various elements. The photogenerated holes were the predominant reactive species responsible for the photodegradation of RhB by 0.15-Ni–Bi2WO6. Solution pH could influence the adsorptive and photocatalytic performances of 0.15-Ni–Bi2WO6 with the best performances under acidic condition.
Vorheriger Artikel Influence of chemical functionalization on the thermoelectric properties of monodispersed single-walled carbon nanotubes
Nächster Artikel Improved performance in dye-sensitized solar cells via controlling crystalline structure of nickel selenide

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Metadaten
Titel
Facile synthesis of Ni-doping Bi2WO6 nano-sheets with enhanced adsorptive and visible-light photocatalytic performances
verfasst von
Lei Xiang
Lei Chen
Ce-Hui Mo
Lian-Ming Zheng
Zhong-Xiong Yu
Yan-Wen Li
Quan-Ying Cai
Hui Li
Wei-Dong Yang
Dong-Mei Zhou
Ming-Hung Wong
Publikationsdatum
01.02.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 10/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-2064-3

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