多相催化氧化降解苯酚过程的研究  

Study on Degradation Process of Phenol with Heterogeneous Catalysis-Oxidation

作　　者：许韵华[1] 程志明[1] 宫晓静[1] 曹克宁[1] 

机构地区：[1]北京交通大学理学院,北京100044

出　　处：《北京交通大学学报》2007年第3期91-93,共3页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：北京市自然科学基金资助项目(2042018);北京交通大学"十五"科技专项基金(2005sm060)

摘　　要：利用紫外可见光谱和高效液相色谱研究了催化氧化降解苯酚的过程.结果表明,非晶铁氧化物催化剂在催化氧化降解苯酚时具有较高的催化活性,苯酚降解的中间产物有:对苯二酚、邻苯二酚、苯醌和低级脂肪酸,其降解机理是羟基自由基攻击苯环上OH的邻位或对位而使苯环开环,生成低级脂肪酸,并最终转化成二氧化碳和水,从而使苯酚得以降解.The process of Phenol Catalysis-Oxidation Degradation was studied with UV spectrum and HPLC. The results showed that the amorphous iron oxide has highly catalytic activity. The intermediate products are pyrocatechin, hy＇droquinone, benzoquinone and low-grade fatty acid. The mechanism of catalyst oxidation is assumed that the free radical OH attacks benzene cycle at the adjacent position and para-position of OH on phenol so that the benzene cycle is opened and low-grade fatty acid is produced and transformed into CO2 and H2O.

关 键 词：HPLC 苯酚降解 催化氧化 

分 类 号：X703[环境科学与工程—环境工程]