Fe/γ-Al_2O_3催化剂的制备及其在降解亚甲基蓝废水中的应用  

The preparation of Fe/γ-Al_2O_3 catalysts and its application in the degradation of methylene blue wastewater

作　　者：张飞[1] 贾雷峰 胡红星[1] 黄维[1] 时磊[1] 赵建军[1] 

机构地区：[1]蚌埠学院应用化学与环境工程系,安徽蚌埠233030

出　　处：《应用化工》2016年第2期253-256,共4页Applied Chemical Industry

基　　金：2015年安徽省高校省自然科学研究项目(KJ2015A231);国家级大学生创新创业训练计划项目(AH201311305032)

摘　　要：利用等体积浸渍法制备了一系列Fe/γ-Al_2O_3催化剂。采用催化湿式氧化法考察了催化剂中Fe含量、催化剂焙烧温度、H_2O_2用量、反应温度、废水初始pH等对亚甲基蓝废水COD去除率的影响。结果表明,催化剂焙烧温度为300℃,Fe负载量为0.02 g时催化效果较好;其对应的反应条件为30%的H_2O_2的用量100μL,反应温度30℃,废水pH值4.5,反应时间1 h时,COD去除率最高达到80%。The effects of reaction conditions on methylene blue degradation over Fe/γ-Al2O3 catalysts pre- pared by impregnation were investigated at wet catalyst oxidation. The results were evaluated by the removal of the COD. By analyzing the influences of Fe content,calcination temperature of catalyst,30% of the hydrogen peroxide dosage,reaction temperature and reaction initial pH on the COD removal. The resuits showed that the calcination temperature of 300 ℃, Fe content of 0.02 g, the reaction temperature of 30 ℃ ,pH was 4.5 and 30% hydrogen per＇oxide was 100 μL reaction 1 h,the COD removal rate reaches the highest, at about 80%.

关 键 词：Fe/γ-Al2O3催化剂 COD去除率 亚甲基蓝废水 

分 类 号：TQ032.41[化学工程] TQ085.41