钩藤碱在离子交换纤维上的吸附动力学研究  

Adsorption kinetics of rhynchophylline onto ion exchange fiber

作　　者：秦睿也 郭占京 黄宏妙 聂钰湘 蒋朋坤 宋亚星 閤雪晴 QIN Rui-ye;GUO Zhan-jing;HUANG Hong-miao;NIE Yu-xiang;JIANG Peng-kun;SONG Ya-xing;XIA Xue-qing(College of Pharmacy,Guangxi University of Chinese Medicine,Nanning 530001,China)

机构地区：[1]广西中医药大学药学院,广西南宁530001

出　　处：《应用化工》2023年第6期1730-1734,共5页Applied Chemical Industry

基　　金：广西区自然基金面上项目(2019GXNSFAA185053);广西中医药大学科研课题面上项目(2019MS004);广西中医药大学一流学科建设开放课题(2019XK130);广西中医药大学一方制药大学生科研创新课题(2020DXS10);广西研究生联合培养基地(桂学位[2021]6号);2020年广西中医药大学大学生科研项目(2020DXS10)。

摘　　要：采用静态吸附法考察钩藤碱在离子交换纤维上的吸附行为,并研究离子交换纤维对钩藤碱的吸附动力学。结果表明,钩藤碱在离子交换纤维上的吸附过程更好的符合Ho and McKay二级动力学方程,在吸附液初始浓度为100 mg/L,吸附温度323 K的条件下,二级动力学方程为t/q_(t)=0.0012 t+0.0065(R^(2)=0.998);表观吸附活化能Ea为7.003 kJ/mol;速度控制步骤为液膜扩散控制,在吸附液初始浓度为60 mg/L,吸附温度303 K条件下,液膜扩散模型方程为-ln(1-q_(t)/q_(e))=0.1193 t(R^(2)=0.998)。阳离子交换纤维可以吸附钩藤碱,并且具有良好的吸附性能。The adsorption kinetic behavior of rhynchophylline on ion-exchange fibers was investigated by static adsorption method.The results show that the adsorption process of rhynchophylline onto ion exchange fiber was conformed to the pseudo-second-order kinetic model with the second-order kinetic equation of t/q_(t)=0.0012 t+0.0065(R^(2)=0.998)under the conditions of C_(0)=100 mg/L and T=323 K,and the apparent activation energy E_(a) was 7.003 kJ/mol.The adsorption rate was limited by film diffusion,which liquid film diffusion model equation was-ln(1-q_(t)/q_(e))=0.1193 t(R^(2)=0.998),under the conditions of C_(0)=60 mg/L and T=303 K.All of the research reults showed that the strong acid cation exchange fiber had good adsorption performance to rhynchophylline.

关 键 词：钩藤碱 离子交换纤维 吸附 动力学 

分 类 号：TQ46[化学工程—制药化工] O69[理学—化学] R931.4[医药卫生—生药学]