具有辅助性能的红霉素分子印迹聚合物的制备及性能  

Preparation and properties of erythromycin molecularly imprinted polymer with auxiliary properties

作　　者：侯玲梅 孟红福 赵调彬 曾一文[2] 王农[1] HOU Lingmei;MENG Hongfu;ZHAO Tiaobin;ZENG Yiwen;WANG Nong(School of Chemical and Biological Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;College of Materials and Chemical Engineering,Hezhou University,Hezhou 542899,China)

机构地区：[1]兰州交通大学化学与生物工程学院,兰州730070 [2]贺州学院材料与环境工程学院,贺州542899

出　　处：《复合材料学报》2021年第6期1754-1766,共13页Acta Materiae Compositae Sinica

基　　金：甘肃省中小企业创新基金(1407GCCA013);优质高纯纳米碳酸钙的关键技术与产业化应用示范项目(17202030-2)。

摘　　要：分别制备了磁性Fe_(3)O_(4)@聚丙烯酸(Fe_(3)O_(4)@PAA)红霉素分子印迹聚合物(ERYMIP)和光降解TiO2@PAA ERYMIP,以期更好地分离或降解红霉素,从而提高处理残留红霉素的能力。采用SEM、XRD、FTIR、TG和磁滞回线(MHL)等对两种印迹聚合物的形貌、结构和性能进行了表征。实验表明Fe_(3)O_(4)@PAA ERYMIP具有超顺磁性;TiO2@PAA ERYMIP具有一定的光降解性能。Fe_(3)O_(4)@PAA ERYMIP和TiO2@PAA ERYMIP对ERY的最大吸附量分别为958.4 mg·g^(-1)和1 170.2 mg·g^(-1),与其它抗生素相比具有良好的选择性。等温吸附研究发现Fe_(3)O_(4)@PAA ERYMIP和TiO2@PAA ERYMIP对ERY吸附均符合Langmuir模型;动力学研究发现Fe_(3)O_(4)@PAA ERYMIP和TiO2@PAA ERYMIP对ERY的吸附过程分别符合准二级和准一级模型。In order to better isolate or degrade erythromycin, and finally improve the ability to deal with residual erythromycin. Magnetic Fe_(3)O_(4)@polyacrylic acid(Fe_(3)O_(4)@PAA) erythromycin molecularly imprinted polymer(ERYMIP) and photodegradation TiO2@polyacrylic acid erythromycin molecularly imprinted polymer(TiO2@PAA ERYMIP) were prepared, respectively. Scanning electron microscope(SEM), X-ray powder diffraction(XRD), Fourier transform infrared spectroscopy(FTIR), thermogravimetric analysisand(TG) and magnetic hysteresis loop(MHL) were used to characterize the morphology and structure of the imprinted polymers. Experimental results show that Fe_(3)O_(4)@PAA ERYMIP has superparamagnetic properties and TiO2@PAA ERYMIP has photodegradation performance. The maximum adsorption capacity of Fe_(3)O_(4)@PAA ERYMIP and TiO2@PAA ERYMIP are958.4 mg·g^(-1) and 1 170.2 mg·g^(-1), respectively. They have good selectivity compared with other antibiotics. Isothermal adsorption studies find that both Fe_(3)O_(4)@PAA ERYMIP and TiO2@PAA ERYMIP are consistent with Langmuir model. The kinetic studies find that the adsorption processes of Fe_(3)O_(4)@PAA ERYMIP and TiO2@PAA ERYMIP conform to the quasi-secondary and quasi-primary models, respectively.

关 键 词：红霉素 分子印迹聚合物 选择性吸附 磁性 光降解 

分 类 号：O632.5[理学—高分子化学] O647.33[理学—化学]