磁性多孔碳@β-环糊精/环氧氯丙烷共聚物的制备及其对多氯联苯的吸附性能研究
Preparation of Magnetic Porous Carbon@β-Cyclodextrin/Epichlorohydrin Copolymer and its Adsorption Properties for Polychlorinated Biphenyls
张庆珍 1黄象金 1韦寿莲2
作者信息
- 1. 肇庆市食品检验所,广东 肇庆 526060
- 2. 肇庆学院 环境与化学工程学院,广东 肇庆 526061;广东亚视演艺职业学院 医学院,广东德庆 526631
- 折叠
摘要
采用乳液聚合法制备了磁性多孔碳@β-环糊精/环氧氯丙烷共聚物(MPC@β-CDEP)复合材料,并对其结构和形貌进行了表征.研究了该材料对 8 种多氯联苯(PCBs)的吸附性能.结果表明,MPC@β-CDEP对PCBs的吸附速率快,5 min内可达到吸附平衡.由静态吸附和动态吸附模拟结果可知,MGO@β-CDMIP吸附过程符合Freundlich模型和准二级动力学模型,且MPC@β-CDEP对PCBs的吸附以化学吸附为主,具有多层吸附特点.
Abstract
Magnetic porous carbon@β-cyclodextrin/epichlorohydrin copolymer(MPC@β-CDEP)composite is prepared by emulsion polymerization method and its structure and morphology are characterized.The adsorption properties of the material for 8 kinds of polychlorinated biphenyls(PCBs)are investigated.The results show that the adsorption rate of PCBs by MPC@β-CDEP is fast,and the adsorption equilibrium could be reached in 5 min.The results of static and dynamic adsorption show that the adsorption process of MPC@β-CDEP accords with the Freundlich model and the quasi-secondary kinetic model.The adsorption of PCBs by MPC@β-CDEP is mainly chemical adsorption and possesses multi-layer adsorption characteristics.
关键词
多氯联苯/磁性多孔碳/β-环糊精/吸附Key words
polychlorinated biphenyls/magnetic porous carbon/β-cyclodextrin/adsorption引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据