Abstract
Titanate/N-doped anatase composite hierarchical microspheres have been obtained by calcination treatment of NH4-titanate hierarchical microspheres at proper temperatures. The phase structure is dependent on the calcination temperature and varies from titanate to anatase with increasing calcination temperature, with the heterophase in-between. The composite structure is verified by the results of XRD, visible and UV Raman spectra. The titanate/N-doped anatase composite sample calcined at 300 °C for 1 h exhibits enhanced activity in the degradation of Rhodamine B under visible light irradiation compared to the other samples. The enhanced activity can be ascribed to the synergistic effect of titanate and N-doped anatase.
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Acknowledgments
The work is supported by the Science & Technology Plan Project of Guangzhou City, China (No. 2013J4300035), the National Natural Science Foundation of China (No. 51172233) and the Foundation of the Key Laboratory of Water and Air Pollution Control of Guangdong Province (GD2012A05).
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Qiu, Y., Wu, L., Li, J. et al. Preparation of Titanate/N-Doped Anatase Composite Hierarchical Microspheres with Enhanced Visible Light Photocatalytic Activity. Catal Lett 145, 647–653 (2015). https://doi.org/10.1007/s10562-014-1423-1
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DOI: https://doi.org/10.1007/s10562-014-1423-1