磁性氧化石墨烯/聚苯胺纳米复合材料的制备及再生循环吸附性研究  

Synthesis and cyclic absorption properties of magnetic graphene oxide/polyaniline nanocomposite

作　　者：王彦娜[1] 夏爱清[1] 梁慧锋[1] 李铭远 WANG Yan-na;XIA Ai-qing;LIANG Hui-feng;LI Ming-yuan(Xingtai University,Xingtai 054001,China)

机构地区：[1]邢台学院,河北邢台054001

出　　处：《化学研究与应用》2020年第7期1296-1301,共6页Chemical Research and Application

基　　金：河北省2017年度重点研发计划项目(17211226)资助;邢台市2018年科技计划项目(2018ZC032)资助;邢台学院2018年度校级重点科研项目(XTXYZD2018003)资助。

摘　　要：由氧化法和原位合成法成功制备了磁性氧化石墨烯/聚苯胺(Fe3O4/GO/PANI,MPGO)纳米复合材料,使用X射线衍射、热重分析、红外光谱、VSM、BET等对所得材料进行了结构表征和性能测试,研究了复合材料对甲基橙染料的吸附性能。结果表明:pH为4时,MPGO吸附量最大,为198 mg·g-1;450 min达到吸附平衡,吸附量为211.08 mg·g-1。MPGO对甲基橙的吸附行为符合Langmuir等温模型和准二级动力学模型;经过7次再生循环后,MPGO对甲基橙的吸附量保持为初始吸附量的72.2%,具有较好的重复利用性。Ferroferric oxide·g-1raphene oxide/polyaniline(Fe3O4/GO/PANI,MPGO)composite nanomaterial was prepared successfully by oxidation method and in-situ synthesis method.The prepared sample characterized by the methods of XRD,TG,FT-IR,VSM and BET.Meanwhile,the adsorption performance of methyl orange on MPGO was investigated.The results show that,the largest adsorption capacity of MPGO is 198 mg·g-1 with pH value of 4;adsorption equilibrium is attained in 450 min with the adsorption capacity of 211.08 mg·g-1.MPGO conforms to Langmuir isotherm model and pseudo-second order kinetic model.Moreover,after 7 times recycling use,the adsorption capacity reaches 72.2%compared with the first time,which shows that,MPGO has a good reusability.

关 键 词：磁性 氧化石墨烯 聚苯胺 吸附 磁分离 

分 类 号：O613.71[理学—无机化学]