铁交联膨润土-H_2O_2催化氧化降解刚果红的研究  

Study on Catalytic Oxidation Process for Congo Red Degradation by Fe-pillared Bentonite-H_2O_2

作　　者：魏光涛[1,2] 叶瑞翠[2] 张琳叶[2] 宁玉梅[2] 

机构地区：[1]广西大学有色金属及材料加工新技术教育部重点实验室,广西南宁530004 [2]广西大学化学化工学院,广西南宁530004

出　　处：《非金属矿》2011年第5期55-57,共3页Non-Metallic Mines

基　　金：有色金属及材料加工新技术教育部重点实验室开放基金资助项目(GXKFJ09-13);广西自然科学基金(2011GXNSFB018017);广西大学实验室建设与实验教学改革项目(20110305)

摘　　要：以铁交联膨润土为催化剂,H2O2为氧化剂,催化氧化降解处理染料刚果红,并研究各因素对去除率的影响。实验结果表明,用铁交联膨润土-H2O2处理50 mg/L刚果红废水,在pH值为3、温度75℃、H2O2用量0.016 mol/L、铁交联膨润土用量0.4 g/L、时间30 min条件下,对刚果红的去除率达91%。铁交联膨润土作为类Fenton体系的固体催化剂具有pH值适应范围宽、对污染物具有一定的吸附作用、可分离重复使用等优点。Catalytic degradation process for the congo red was investigated by using the Fe-pillared bentonite as catalyst and adsorbent, and H2O2 as oxidant. The experimental results indicated that the disadvantages of Fenton reagent were eliminated by the Fe-pillared bentonite, and the degradation ratio of congo red reached 91% under the following conditions： pH value was 3, reaction temperature was 75, dosage of H2O2 was 0.016 mol/L, dosage of bentonite was 0.4 g/L, reaction time was 30min.

关 键 词：铁交联膨润土 双氧水 催化降解 刚果红 

分 类 号：X703[环境科学与工程—环境工程]