【摘要】 以颗粒活性炭为载体，在其上负载锰铁铈多金属氧化物，采用浸渍煅烧法制备了Mn-Fe-Ce/GAC催化剂。通过SEM、XRD、XPS、BET对催化剂结构进行表征，结果表明金属在催化剂表面均匀分散。研究了不同因素对催化臭氧氧化降解DOC和TN效果的影响，并且探究了催化剂的重复利用及稳定性。在臭氧投加量为1.9 mg/(L·min),废水初始pH为6.3,进水苯胺浓度为19.89 mg/L的条件下，反应150 min后，DOC和TN去除率分别达到88.88%和86.73%,催化剂处理效果良好，且重复使用5次后，DOC和TN去除率仍保持在75%和70%以上，其重复使用性能稳定。更多还原

【Abstract】 The Mn-Fe-Ce/GAC catalyst was prepared by impregnation calcination using activated carbon particles as the carrier and loaded with Mn-Fe-Ce polymetallic oxides, and its properties were characterized by SEM, XRD, XPS, and BET, and the results showed that the metal was well dispersed and uniformly loaded on the catalyst surface. The effects of catalyst dosage, initial pH and initial aniline concentration of wastewater on the catalytic ozone oxidation degradation of DOC and TN were investigated, and the reuse and stability of the catalyst were also investigated. The main conclusions were as follows: under the conditions of ozone dosage of 1.9 mg/(L·min), initial pH of wastewater of 6.3 and influent aniline concentration of 19.89 mg/L, the DOC and TN removal rates reached 88.88% and 86.73%, respectively, after 150 min of reaction, and the catalyst was proved to have good treatment effect. After the catalyst was reused five times, the DOC and TN removal rates were maintained more than 75% and 70% respectively, and the performance of the catalyst was stable after reuse.更多还原