废水中铁离子对漆酶催化降解2,4-二氯苯酚的影响  

Effect of Iron Ions on Removal of 2,4-Dichlorophenols by Laccase in Wastewater

作　　者：陈嵩[1] 张剑波[1] 陈辉[1] 杨宇翔[2,3] 

机构地区：[1]北京大学环境学院环境科学系 [2]华东理工大学化学与制药学院 [3]南京大学配位化学国家重点实验室,南京210093

出　　处：《北京大学学报（自然科学版）》2006年第4期490-495,共6页Acta Scientiarum Naturalium Universitatis Pekinensis

基　　金：国家自然科学基金资助项目(20577010)

摘　　要：探讨了水中铁离子对固定化漆酶和自由漆酶催化去除水中2,4-二氯苯酚反应的影响。结果表明,Fe2+和Fe3+离子对于自由漆酶催化去除2,4-二氯苯酚的反应均表现出一定程度的抑制作用,但对固定化漆酶降解2,4-二氯苯酚的影响要小,表明经过固定化之后,由于受到固定化载体的保护作用,酶的稳定性明显增加。The effect of iron ions on degradation of 2,4-dichlorophenols by Laccase in wastewater was studied. The results indicated that the Fe^2＋ and Fe^3＋ inhibited the reaction catalyzed by the free enzyme, but the effect on the immobilized laccase was less than on that free enzyme. It showed that the stability of laccase had been improved after immobilization due to protection of cartier.

关 键 词：固定化漆酶 自由漆酶 催化氧化 抑制 

分 类 号：X703[环境科学与工程—环境工程]