摘要：

采用泡沫陶瓷为载体,利用浸渍法制备了锰氧化物固相催化剂,研究了浸渍溶液种类与浓度对固相催化剂负载量及稳定性的影响,利用SEM尧EDS 对固相催化剂进行表征,并结合臭氧对苯酚进行降解实验研究.研究结果表明:采用0.5 mol/L Mn(NO₃)₂浸渍液负载率最大,达到2.32%,且稳定性最佳;制备的载锰固相催化剂对苯酚降解率达到89.6%,对应的COD降解率达到79.2%.

关键词: 泡沫陶瓷, 锰氧化物, 臭氧, 催化氧化, 苯酚

Abstract:

Using foam ceramics as carrier,manganese oxide solid phase catalyst has been prepared by impregnation method. The effects of different species and concentrations of the dipping solution on the loading capacity and stability of solid phase catalyst are investigated. The solid catalyst is characterized by scanning electron microscopy(SEM) and energy dispersive spectrometer(EDS). And combined with ozone,experimental research on catalytic degradation of phenol has been conducted. The results show that the load rate of using 0.5 mol/L Mn(NO₃)₂ of impregnation liquid is the highest,reaching 2.32%,and its stability is the best. The phenol degradation rate by using the prepared manganese-loaded solid phase catalyst can reach 89.6%and the corresponding CODdegradation rate reaches 79.2%.

Key words: foamceramic, manganese oxides, ozone, catalytic oxidation, phenol

中图分类号: 

• X703.1