Abstract
A convenient and efficient method is developed to massively synthesize N-aluminum-doped zinc oxide (AZO)/TiO2 nanocomposites (NCs) with good visible light photo-response and photocatalytic activity. The shortened band gap of the interstitial N-doped NCs led to a much easier electron excitation and effectively inhibited the recombination of the photo-excited electrons and holes, thus dramatically improving the photocatalytic activity during the photocatalytic process. The impact of N-doping content on N-AZO/TiO2 NCs’s photocatalytic activity toward gatifloxacin (GAT) degradation was studied. The results showed that the most optimal molar ratio of nitrogen atom to zinc atom was 1.2:1. The degradation rate of GAT reached 85% when given an illumination time of 30 min, which was 2.3 times higher than pure AZO materials and increased by 22% compared to the non-doping pure AZO/TiO2.
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Acknowledgements
This work was supported by the Program of Shanghai Institute of Technology (YJ2016-36), the Science and Technology Program of Shanghai City of China (16090503500), “Shuguang Scholar Program” (17SG52) by Shanghai Education Development Foundation and Shanghai Municipal Education Commission and the National Natural Science Foundation of China (21605103).
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Wang, B., Hu, X., Zhao, Y. et al. Preparation and photocatalytic performance of N-AZO/TiO2 nanocomposites. J Mater Sci: Mater Electron 29, 17296–17304 (2018). https://doi.org/10.1007/s10854-018-9824-3
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DOI: https://doi.org/10.1007/s10854-018-9824-3