Laccase-functionalized magnetic framework composite enabled chlorophenols degradation,a potential remediation for fungicides residues in leather
作者机构:School of Food Science and Pharmaceutical EngineeringNanjing Normal UniversityNanjing 210023People’s Republic of China Schoolof Pharmaceutical SciencesNanjing Tech UniversityNanjing 210009People’s Republic of China
出 版 物:《Journal of Leather Science and Engineering》 (皮革科学与工程(英文))
年 卷 期:2022年第4卷第1期
页 面:299-309页
学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金:the National Key Research and Development Project(Grant No.2021YFC2100100)
主 题:Zeolitic metal azolate framework-7(MAF-7) Laccase Magnetic nanoparticles(MNPs) Lac/MNP@MOM 2,4-dichlorophenol(2,4-DCP)
摘 要:Chlorophenols,used as the fungicides in leather,are strictly limited in leather *** this work,a metal-organic framework material,zeolitic metal azolate framework-7(MAF-7),was first used to encapsulate laccase(Lac)to prepare MAF-7/Lac bio-composites with 98.5%immobilization ***,Lac/MNP@MOM was formed by introducing the magnetic nanoparticles(MNPs)into the Lac@***-7 with better hydrophilicity and stronger pH buffering ability,exhibits good compatibility with laccase,which can reserve the activity of laccase after ***,the porous structure of MAF-7 is favorable for the sufficient contact between laccase and ***/MNP@MOM exhibited excellent activity when exposed to high temperature,extreme pH,and organic solvents,which also simplified complex recovery ***,the degradation rate of 2,4-dichlorophenol(2,4-DCP)could reach as high as 97%within 24 h by immobilized laccase,and after nine consecutive cycles of operation,enzyme activity could remain over 80%,which gives it the potential for practical applications.