UV/H_2O_2/草酸铁络合物法光降解偶氮染料金橙G的研究  

Study on Photodegradation of Azo Dye Orange G by UV/H_2O_2/Ferric Oxalate Complex Process

作　　者：吴辉[1] 段建建[1] 宋功武[1] 

机构地区：[1]湖北大学有机功能分子合成与应用教育部重点实验室,湖北武汉430062

出　　处：《化学与生物工程》2010年第6期66-68,77,共4页Chemistry & Bioengineering

基　　金：湖北省自然科学基金资助项目(2009CDB151)

摘　　要：采用UV/H2O2/草酸铁络合物法处理偶氮染料金橙G(OG)废水。结果表明,降解浓度为5×10-5mol.L-1的OG模拟废水的最佳条件为:光照12 min,H2O2、FeSO4和C2H2O4浓度分别为8×10-2mol.L-1、6×10-5mol.L-1和4.2×10-4mol.L-1,此时,OG去除率可达95.1%。UV/H2O2/草酸铁络合物法降解OG的效果优于Fenton法和H2O2/草酸铁络合物法。紫外可见光谱分析表明,.OH破坏了OG的-N=N-和苯环结构。The photodegradation of azo dye Orange G by UV/H2O2/ferric oxalate complex process was studied.The results showed that the removal rate of Orang G by this process could reach 95.1% for 5×10-5 mol·L-1 Orange G solution when the irradiation time was 12 min,the concentration of H2O2,FeSO4 and C2H2O4 was 8 ×10-2mol·L-1,6×10-5 mol·L-1 and 4.2×10-4 mol·L-1,respectively.And degradation efficiency of UV/H2O2/ferric oxalate complex process was better than that of Fenton process or H2O2/ferric oxalate complex process.According to UV-Vis spectrum,it was concluded that azo bond and benzene ring of Orange G were destroyed by hydroxyl radical.

关 键 词：H2O2 草酸铁 光降解 金橙G 

分 类 号：X703.1[环境科学与工程—环境工程] X791