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The organic contaminant, REACTIVE Black 5 (RB5) was degraded by Fe/Cu co-doped TiO 2 nano-particles under mercury lamp. In the present study, the combined effects of Fe/Cu doping amount, calcination temperature and calcination time on catalyst activity were investigated, and through quadratic regression general rotation design, the optimal condition for preparing the catalyst was obtained as follows: calcination time, 3.55h; calcination temperature, 453 ; Cu doping amount, 1.89%; Fe doping amount, 1.6 ℃ 2%.doi:10.5539/ijc.v3n3p87 fatcat:nde7vsvohncxdim43uvkc2n7xa