磁性聚苯胺纳米纤维吸附性能的探究  

Investigation on the Adsorption Properties of Magnetic Polyaniline Nanofibers

作　　者：李大为 陶玉仑[1] 李硕 邱海芳 朱贵生 LI Da-wei;TAO Yu-lun;LI shuo;QIU hai-fang;ZHU gui-sheng(School of Materials Science and Engineering,Anhui University of Technology,Huainan 232000,China;Jiangsu SOPO Chemical Co.,Ltd.,Zhenjiang 212000,China)

机构地区：[1]安徽理工大学材料科学与工程学院,安徽淮南232000 [2]江苏索普集团有限公司,江苏镇江212000

出　　处：《化学试剂》2022年第3期401-407,共7页Chemical Reagents

基　　金：安徽省高校优秀青年人才项目(gxyqZD2019026)。

摘　　要：以有机酸、粉煤灰磁珠为掺杂剂,过硫酸铵为氧化剂,采用氧化聚合的方法合成了磁性聚苯胺纳米纤维,对合成的磁性聚苯胺进行扫描电子显微镜(SEM)、傅里叶变换红外光谱仪(FT-IR)、紫外-可见光分光光度计(UV)、振动磁强计(VSM)、X-射线衍射仪(XRD)等表征,揭示了其形貌、结构、成分和磁性能,并使用磁性聚苯胺作吸附剂对铜离子溶液以及刚果红溶液进行吸附-脱附研究,发现一次吸附率均在95%以上。通过吸附动力学对吸附机理进行探究,得出聚苯胺吸附铜离子及刚果红符合二级动力学模型。Magnetic polyaniline nanofibers were synthesized by using organic acid and fly ash beads as dopants and ammonium persulfate as oxide polymerization,and were characterized by employing scanning electron microscope(SEM),Fourier transform infrared spectrometer(FT-IR),UV visible spectrophotometer(UV),vibrational magnetometer(VSM)and X-ray diffraction(XRD)for their morphology,structure,composition and magnetic properties.The title polyaniline was used as adsorbent to study the adsorption and desorption of copper ion solution and Congo red solution,and the adsorption rate was found to be more than 95%.Based on the investigation on the adsorption mechanism,it can be concluded that adsorption of copper ions and Congo red on the title polyaniline obey the secondary kinetic model.

关 键 词：磁性 有机酸 聚苯胺 吸附 动力学 

分 类 号：TQ424[化学工程] X703[环境科学与工程—环境工程]