Abstract：The Fe-Ni co-doping TiO2 particles loaded activated carbon (Fe-Ni-TiO2/AC) particle electrodes were synthesized and applied to a visible, irradiation assisted, three-dimensional electro-Fenton (Vis-3D/EF) system. The synergic performance of Vis-3D/EF system was investigated using RhB as target pollutant. Compared with activated carbon particle electrodes and TiO2 loaded activated carbon particle electrodes, the photoelectrocatalytic performance of Fe-Ni-TiO2/AC particle electrodes in Vis-3D/EF system was the highest with the optimum synthesized conditions of TiO2 concentration of 2g/L, Fe-Ni doping ratio of 5:5 and Fe:Ni:TiO2 molar ratio of 0.5:0.5:100. The hightest degradation rate of RhB in Vis-3D/EF system reached 92.58% with in 60min. The RhB removal rate of Fe-Ni-TiO2/AC particle electrodes in Vis-3D/EF increased 29.46% compared with 3D/EF. A significant synergetic effect was observed between visible light photocatalysis and 3D/EF processes in the system, with a synergetic factor of 1.18. Result suggested it was feasible for the synergic degradation of RhB under visible irradiation in the Vis-3D/EF combination technique.
