|
|||||
|
|
Immobilization of laccase by Cu2+ chelate affinity interaction on surface modified magnetic silica particles and its use for the removal of pentachlorophenol |
|
| Authors: | Ying Wang Di Zhang Fu Rong He Xiao Chun Chen |
| Affiliation: | a The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China;b State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China;c Department of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
| Abstract: | Magnetic Cu2+-chelated silica particles using polyacrylamide as a metal-chelating ligand was developed and used for the immobilization of laccase by coordination. The effect of pH and temperature on the enzymatic property of immobilized laccase and its catalytic capacity for pentachlorophenol (PCP) degradation were evaluated systemically. Compared with free laccase, the immobilized laccase showed improved acid adaptability and thermal stability. The immobilized laccase prepared in this work exhibited a good catalytic capacity for PCP removal from aqueous solutions. |
| Keywords: | Magnetic silica Immobilization Laccase Pentachlorophenol |
| 本文献已被 CNKI ScienceDirect 等数据库收录！ | |
| 点击此处可从《中国化学快报》浏览原始摘要信息 | |
| 点击此处可从《中国化学快报》下载全文 | |