Abstract
The different preparation conditions of TiO2and NV co-doped TiO2prepared by the sol-gel method were evaluated through the SO2photocatalysis removal efficiency and continuous utilization time under the visible light. Results showed that the SO2removal reactions included adsorption and photocatalytic oxidation which was obvious for the NV co-doped TiO2; its continuous utilization time and removal efficiency reached 420min and 98.76% which was higher than that of TiO2,N- TiO2and V- TiO2when the co-doping of N and V, the calcining temperature was 500 °C by 3h and pH was 3.5 with the microwave by 23min.The XPS and XRD analysis indicated that coexisting V4+and V5+,microwave drying, calcination temperature and mixture of anatase and rutile strongly affected the desulfurization photocatalytic activity of NV co-doped TiO2.
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