Abstract
In this article, fiber-like ZnO-ZnFe2O4 composites are obtained by using nanofibrillated cellulose as a biotemplate. The as-prepared composites exhibit strong absorbance in the visible-light region. The ZnO-ZnFe2O4 composites exhibit a similar bandgap (1.88 eV) compared with the ZnFe2O4 (1.85 eV). The ZnO-ZnFe2O4 composites can be easily collected by an external magnet, which contributes to improving the utilization efficiency of the photocatalysts. The photocatalytic activity of the ZnO-ZnFe2O4 catalysts was evaluated by photodegrading rhodamine B (RhB) under visible-light irradiation. Compared with ZnO and ZnFe2O4, the ZnO-ZnFe2O4 catalysts show higher photocatalytic activity due to the efficient electron–hole separation.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (Nos. 51402087 and 31501680), the Natural Science Foundation of Hebei Province (No. C2016106025), and the Program for the Top Young Talents of Higher Learning Institutions of Hebei Province (No. BJ2014026).
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Cai, A., Guo, A., Du, L. et al. Nanofibrillated Cellulose-Assisted Synthesis of Fiber-Like ZnO-ZnFe2O4 Composites with Enhanced Visible-Light-Driven Photocatalytic Activity. JOM 70, 2169–2172 (2018). https://doi.org/10.1007/s11837-018-2918-9
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DOI: https://doi.org/10.1007/s11837-018-2918-9