摘要
以N-异丙基丙烯酰胺为功能单体,氯霉素为模板分子,采用热聚合法制备了氯霉素分子印迹聚合物(MIPs).通过FE-SEM、FT-IR等表征手段对其进行了表征,并通过静态吸附实验考察温度、pH、初始浓度、平衡时间等因素对该聚合物吸附性能的影响.该聚合物在25℃,pH=7的条件下,静态吸附2 h达到吸附平衡,理论最大吸附量为127.8 mg/g,吸附机理主要为单分子层化学吸附过程,并且对氯霉素类抗生素显示出良好的选择性.
Chloramphenicol imprinted polymers(MIPs)were prepared by thermal polymerization with chloromycetin as template molecule and isopropyl acrylamide as functional monomer.Their physicochemical properties were characterized by FE-SEM and FT-IR.The effects of temperature,pH,initial concentration and equilibrium time on the adsorption performance were investigated by static adsorption experiments.The results showed that the adsorption equilibrium was reached at 25℃after 2h and the pH of solution was 7.The theoretical maximum adsorption capacity was 127.8 mg/g.The adsorption mechanism was mainly single-molecular layer chemical adsorption process.The polymer provided good selective adsorption effect on chloramphenicol antibiotics.
作者
蒋彩云
刘家勋
吴婷
葛伟丽
杨爱萍
王新
吉志林
王玉萍
Jiang Caiyun;Liu Jiaxun;Wu Ting;Ge Weili;Yang Aiping;Wang Xin;Ji Zhilin;Wang Yuping(School of Health,Jiangsu Vocational Institute of Commerce,Jiangsu Engineering and Research Center of Food Safety,Nanjing 210007,China;School of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210097,China)
出处
《南京师大学报（自然科学版）》
CAS
CSCD
北大核心
2021年第1期43-49,共7页
Journal of Nanjing Normal University(Natural Science Edition)
基金
国家自然科学基金项目(51578295)
江苏省自然科学基金项目(BK20161479)
江苏经贸职业技术学院重大课题(JSJM19002).
关键词
分子印迹
氯霉素
N-异丙基丙烯酰胺
吸附机理
molecular imprinting
chloramphenicol
N-isopropylacrylamide
adsorption mechanism
