Abstract: Fe-Ce/Al₂O₃ catalyst has been prepared,and the photo-assisted heterogeneous Fenton method used for treating wastewater containing p-nitrophenol(PNP). The removing effect of the catalyst on wastewater containing p-nitrophenol(PNP) and its stability have been investigated. The results show that when the mass concentration of PNP wastewater is 200 mg/L,dosage of H₂O₂ 150 mmol/L,dosage of catalyst 100 g/L,pH=4,temperature 25℃,and reaction time 120 min,the PNP removing rate can reach 98.7%,COD removing rate can reach 72.9%. The synergistic effect of UV and catalyzed H₂O₂ on the removal of PNP is good. PNP removing rate can reach 83.2% when the catalyst has been used 5 times.

Key words: p-nitrophenol, Fe-Ce/Al₂O₃ catalyst, heterogeneous, Fenton, synergetic effect

摘要： 制备了Fe-Ce/Al₂O₃催化剂，采用光助非均相类Fenton法对对硝基酚（PNP）废水进行处理，考察PNP的去除效果及催化剂稳定性。结果表明：PNP质量浓度为200 mg/L、H₂O₂投加量为150 mmol/L、催化剂投加量为100 g/L、pH=4、温度为25℃、反应时间为120 min时，PNP去除率可达98.7%，COD去除率可达72.9%。紫外光、催化剂催化H₂O₂去除PNP的协同效果良好，催化剂使用5次时PNP去除率达到83.2%。

关键词: 对硝基酚, Fe-Ce/Al₂O₃催化剂, 非均相, Fenton, 协同作用

CLC Number: 

• TQ423.93