三乙烯四胺改性的磁性微球对酸性品红的吸附研究  

Preparation of the triethylenetetramine modified magnetic microspheres and the adsorption properties for acid fuchsin

作　　者：王凯 张曼 魏立强 李天祺 蔡金利 余杰 Wang Kai;Zhang Man;Wei Liqiang;Li Tianqi;Cai Jinli;Yu Jie(Department of Chemistry and Life Sciences,Chifeng University,Chifeng 024000;Chifeng Emergency Management Bureau,Chifeng 024000;Lianyungang Sennics Co.,Ltd.,Lianyungang 222002)

机构地区：[1]赤峰学院化学与生命科学学院,赤峰024000 [2]赤峰市应急管理局,赤峰024000 [3]连云港圣奥化学科技有限公司,连云港222002

出　　处：《化工新型材料》2023年第2期187-191,197,共6页New Chemical Materials

基　　金：内蒙古自治区高等学校科学研究项目(NJZY22140和NJZY21136);国家级大学生创新创业计划项目(202210138003)。

摘　　要：以甲基丙烯酸缩水甘油酯(GMA)为功能单体,采用分数聚合法合成了聚(苯乙烯-甲基丙烯酸缩水甘油酯)[P(St-GMA)]磁性微球,利用三乙烯四胺(TETA)修饰P(St-GMA)磁性微球,制备表面含有氨基的P(St-GMA)-TETA磁性微球。采用光学显微镜、傅里叶红外光谱(FT-IR)和样品磁力振荡计(VSM)等手段进行表征,并将其应用于对含酸性品红(AF)的模拟废水吸附性能研究。考察了pH、吸附剂用量和吸附时间等因素对[P(St-GMA)-TETA]磁性微球吸附量的影响。结果表明:该吸附剂对AF的吸附符合准二级动力学模型,60min内基本达到吸附平衡,在298K时,最大吸附量高达171.821mg/g, Langmuir等温吸附数学模型能较好地拟合P(St-GMA)-TETA磁性微球对AF染料的吸附。Using glycidyl methacrylate(GMA) as functional monomer, P(St-GMA) magnetic microspheres were synthesized by dispersion polymerization, and then were modified with Triethylenetetramine(TETA) to obtain amino-functionalized [P(St-GMA)-TETA] magnetic microspheres.The [P(St-GMA)-TETA] magnetic microspheres were characterized by optical microscope, Fourier transform infrared spectrometer(FT-IR),and vibrating sample magnetometer(VSM).After that, Magnetic microspheres were used to adsorb acid fuchsin(AF) from simulated wastewater.The effects of pH,adsorbent dosage, and adsorption time on the adsorptions amount of [P(St-GMA)-TETA] magnetic microspheres were investigated.The adsorption reached equilibrium within 60 min, and the process followed pseudo-second-order kinetic.Under 298K,the saturated adsorption was approximately 171.821mg/g.The adsorption of AF by magnetic microspheres conformed to Langmuir model.

关 键 词：分散聚合 磁性微球 吸附 酸性品红 

分 类 号：X703.1[环境科学与工程—环境工程]