Abstract
In this paper, three-dimensional ordered macroporous (3DOM) TiO2 and Gd/TiO2 materials were synthesized by colloidal crystal templating process. The obtained samples were analyzed by field-emission scanning electron microscope, transmission electron microscopy, X-ray diffraction, diffuse reflectance spectra and Brunauer–Emmett–Teller method. The photocatalytic activity of various samples was evaluated by degradation of methyl orange in aqueous solution under UV and visible light irradiation. At the same time, Degussa P25 (a commercial Titania) powders were used for comparison. The results indicated that 3DOM Gd/TiO2 samples showed a significant shift in the onset absorption towards the longer wavelength compare to pure 3DOM TiO2, and displayed excellent photocatalytic activity under both UV and visible light irradiation.
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Acknowledgments
This work is financially supported by the National Natural Science Foundation of China (Grant No. 51202294) and the Fundamental Research Funds for the Central Universities (R1404006A).
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Li, S., Du, C., Zhao, D. et al. Synthesis of three-dimensional ordered macroporous TiO2, Gd/TiO2 and their photocatalytic activity. J Porous Mater 21, 939–945 (2014). https://doi.org/10.1007/s10934-014-9842-3
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DOI: https://doi.org/10.1007/s10934-014-9842-3