P(St-GMA)-IDA-Cu(Ⅱ)微球的制备及其吸附性能  

Preparation of P(St-GMA)-IDA-Cu(Ⅱ)microspheres and its adsorption properties

作　　者：王凯[1] 邱广明[2] 赵丽娟 靳瑞发[1] 李秀华[1] WANG Kai;QIU Guangming;ZHAO Lijuan;JIN Ruifa;LI Xiuhua(College of Chemistry and Chemical Engineering,Inner Mongolia Key Laboratory of Photoelectric Functional Materials,Chifeng University,Chifeng 024000,China;School of Energy and Power Engineering,Inner Mongolia University of Technology,Huhhot 010051,China)

机构地区：[1]赤峰学院化学化工学院内蒙古自治区光电功能材料重点实验室,内蒙古赤峰024000 [2]内蒙古工业大学能源与动力学院,呼和浩特010051

出　　处：《功能材料》2018年第8期8062-8067,共6页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51263013;21563002);内蒙古自然科学基金资助项目(2015MS0534);内蒙古自治区高等学校科学研究资助项目(NJZY17302;NJZC16252)

摘　　要：采用分散聚合法制备聚P(St-GMA)微球,通过开环反应将亚氨基二乙酸(iminodiacetic acid,IDA)接枝在微球的表面,然后与金属离子的螯合,制备了一种P(St-GMA)-IDA-Cu(Ⅱ)微球吸附剂。采用扫描电镜(SEM)、红外光谱(IR)和电导率仪等对其进行了表征。探讨了P(St-GMA)-IDA-Cu(Ⅱ)微球对牛血清蛋白(bovine serum albumin,BSA)的吸附性能,考察了pH值和吸附时间等对BSA的吸附量的影响,研究了其吸附动力学和吸附热力学特性。结果表明,pH=6时,吸附量最大;在298K时,P(St-GMA)-IDA-Cu(Ⅱ)微球的最大吸附量为37.66mg/g,吸附符合Langmuir方程;动力学研究结果表明,准二级动力学方程能较好拟合动力学实验结果。P（Styrene-Glycidyl methacrylate）（P（St-GMA））microspheres were synthesized adopting dispersion copolymerization,and iminodiacetic acid（IDA）was then grafted on the surface of P（St-GMA）microspheres via the ring-opening reaction,to form P（St-GMA）-IDA microspheres.New P（St-GMA）-IDA-Cu（Ⅱ）microspheres were prepared by coordinating Cu（Ⅱ）on P（St-GMA）-IDA microspheres.The adsorbent was characterized by scanning electron microscope（SEM）,Fourier transform infrared spectrometer（FT-IR）,and conductivity meter.The adsorption performances of bovine serum albumin（BSA）on P（St-GMA）-IDA-Cu（Ⅱ）microspheres was discussed in detail,including pH and contact time.The thermodynamic and kinetic parameters in adsorption process were studied to discuss the mechanism of adsorption.The experimental results showed that the highest adsorption capacity of P（St-GMA）-IDA-Cu（Ⅱ）microspheres was around pH=6.The highest adsorption capacity was 37.66 mg/g at 298 Kand the equilibrium adsorption data fitted well to Langmuir.The kinetic experimental data were correlated with second-order kinetic model.

关 键 词：分散聚合 微球 吸附 牛血清蛋白 

分 类 号：TQ316.3[化学工程—高聚物工业]