【摘要】 在 p H=2 .0 ,铁 ( ) /柠檬酸盐 =1 0 -4mol/L/2× 1 0 -4mol/L的条件下 ,活性艳红 X- 3 B染料溶液经过高压汞灯 (λ≥ 3 1 3 nm,2 5 0 W)的照射 ,脱色效果明显。 1 6 min光照后 ,2 0 mg/L染料溶液脱色率达 82 .5 %。染料脱色为动力学一级反应。混合溶液的 p H值 ,染料初始浓度及铁 ( ) /柠檬酸盐比对染料脱色均有影响。更多还原

【Abstract】 The dye, Reactive Red 2 in aqueous solutions containing Fe(Ⅲ)-citrate complex has obvious decolorized effect under the irradiation of high pressure mercury lamp(λ≥313nm, 250W). The decolorization efficiency of 20mg/L dye solutions reached 82.5% after 16 minutes. The decolorization was a pseudo-first order reaction. The pH, Fe(Ⅲ)/Citrate ratio and the initial concentration of the dye have effects on the decolorization efficiency.更多还原