蛋白土基非均相Fenton催化剂降解印染废水

Degradation of Dye Wastewater by Opal based Material as a Heterogeneous Fenton Catalyst

制备了一种高效的非均相催化剂Fe_2O_3-蛋白土复合材料,利用光-Fenton反应原理对有机污染物进行降解。本研究选用罗丹明B作为目标污染物,探讨了影响罗丹明B降解效果的因素。在pH值为3,催化剂质量浓度为0.1 g/L,过氧化氢浓度为50 mmol/L,罗丹明B质量浓度为8.5 mg/L,太阳光照下反应100 min,罗丹明B的脱色率达100%。此外,还考察了不同光源、不同材料以及不同反应体系对罗丹明B降解效果的影响。结果表明,在可见光-Fenton反应体系中,罗丹明B的降解效果最佳。

An efficient Fe203-opal was synthesized as a heterogeneous catalyst for photo-Fenton degradation of organic contaminants. Rhodamine B was chosen as model organic pollutant and factors affecting the dye degradation were investigated. Rhodamine B degradation was excellent at pH value of 3, when the catalyst of 0.1 g/L and H2O2 of 50 mmol/L and rhodamine B of 8.5 mg/L were introduced to the reaction solution, the degradation ratio of rhodamine B was 100% undersolar light irradiation in 100 minutes, In addition, the effects of different light, materials and systems on removal efficiency of rhodamine B was investigated. The results showed that, the degradation of rhodamine 13 in the best condition of visible light photo-Fenton system has been reached.