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

09.11.2017

Effect of sintering temperature on the photocatalytic activity of Carbon–Bi2O3–TiO2 composite

verfasst von: Hao Zou, Mianxin Song, Facheng Yi, Xiaoqiang Wang, Liang Bian, Weimin Li, Jili Zhang, Ning Pan, Pan Zeng

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

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Abstract

The Carbon–Bi2O3–TiO2 composite was prepared by sol–gel method and characterized by TG-DSC, EA, XPS, TEM, HRTEM, XRD, UV–Vis DRS and PL techniques. Besides, their photoactivities were evaluated by decomposing methyl orange in visible light. The degradation experiments showed that the sample sintered at 300 °C (C–Bi–Ti-300) displays the highest photocatalytic activity, and nearly 90.0% of methyl orange was decomposed after 120 min irradiation. The characterization results suggested that the C–Bi–Ti-300 composite has anatase crystal structure and exhibits a remarkable optical absorption in visible light region. Furthermore, TiO2, Bi2O3 and carbon are present mainly as separate phases in the C–Bi–Ti-300 composite, respectively. In addition, the mechanism for photocatalytic reaction was investigated, demonstrating that the enhanced photoactivity of the C–Bi–Ti-300 composite is ascribed to its low band gap energy and charge carrier recombination rate.
Vorheriger Artikel A fast response & recovery acetone gas sensor based on BiFeO3 nanomaterials with high sensitivity and low detection limit
Nächster Artikel Excess conductivity analyses of (Cu0.5Tl0.5)Ba2Ca3Cu4O12−δ thin film samples synthesized at different temperatures and post-annealed in flowing nitrogen atmosphere

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Metadaten
Titel
Effect of sintering temperature on the photocatalytic activity of Carbon–Bi2O3–TiO2 composite
verfasst von
Hao Zou
Mianxin Song
Facheng Yi
Xiaoqiang Wang
Liang Bian
Weimin Li
Jili Zhang
Ning Pan
Pan Zeng
Publikationsdatum
09.11.2017
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/s10854-017-8133-6

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