催化臭氧氧化降解罗丹明B的初步研究  

INVESTIGATION OF RHODAMINE B DEGRADATION BY CATALYTIC OZONATION

作　　者：柳葛贤[1,2] 吕功煊[1] 

机构地区：[1]中国科学院兰州化学物理研究所,羰基合成与选择氧化国家重点实验室,兰州730000 [2]中国科学院研究生院

出　　处：《环境化学》2007年第5期626-629,共4页Environmental Chemistry

摘　　要：研究了过渡金属硝酸盐及Al2O3为载体担载催化剂在罗丹明B臭氧氧化过程中的催化作用,考察了温度、pH值以及催化剂浓度等因素对反应的影响.结果表明,过渡金属离子可显著地提高罗丹明B的脱色速率,而担载型过渡金属氧化物催化剂活性较低.较低的pH值和反应温度有利于罗丹明B的催化臭氧化.罗丹明B溶液经过催化臭氧氧化后COD去除率可提高24%.The ozonation of Rhodamine B had been carried out in a cylinder reactor. Transition metal nitrates and alumina-supported metal oxides had been used as catalysts. The effects of pH values, reaction temperatures and catalyst concentrations on catalytic ozonation of Rhodamine B were investigated. The results showed that transition metal nitrate catalyst significantly catalyzed the ozonation of Rhodamine B, whereas alumina-supported transition metal oxide catalysts showed low activity. The degradation efficiency of Rhodamine B increased with decreases of pH value and reaction temperature. The COD removal efficiency of Rhodamine B solution was improved by 24% for catalytic ozonation with copper nitrate.

关 键 词：臭氧催化氧化 罗丹明B 降解 脱色 

分 类 号：X132[环境科学与工程—环境科学]