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Issue
Korean Journal of Chemical Engineering,
Vol.34, No.9, 2507-2513, 2017
Efficient photocatalytic removal of aqueous Cr(VI) by N-F-Al tri-doped TiO2
Wang S, Xie Y, Cheng W, Gao J
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.
Keywords: Cr(VI); TiO2; Photocatalytic Reduction; N-F-Al Tri-doping; Al/Ti Ratio; F/Ti Ratio; Calcination Temperature; Different Dopants
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[Cited By]
  1. Zhang J, Fu D, Wang S, Hao R, Xie Y, Journal of Industrial and Engineering Chemistry, 80, 23, 2019
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