Abstract
As chromium is a common heavy metal contaminant in water, we have prepared N-F-Al tri-doped TiO2 catalyst for Cr(VI) removal under visible light. The sample was prepared via a sol-gel method and was characterized by XRD, BET, UV-vis DRS, XPS and SEM techniques. In the photocatalytic experiments, effects of Al/Ti ratio, F/Ti ratio, calcination temperature and different dopants were investigated. The optimum Al/Ti molar ratio, F/Ti ratio and calcination temperature proved to be 0.01, 0.1 and 500 °C, respectively, which is in accordance with the characterization analysis. Catalysts prepared under this condition showed a high photoactivity for Cr(VI) removal in water.
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This paper is reported in the 11th China-Korea Clean Energy Workshop.
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Wang, S., Xie, Y., Cheng, W. et al. Efficient photocatalytic removal of aqueous Cr(VI) by N-F-Al tri-doped TiO2 . Korean J. Chem. Eng. 34, 2507–2513 (2017). https://doi.org/10.1007/s11814-017-0161-7
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DOI: https://doi.org/10.1007/s11814-017-0161-7