CAJ | 학술논문

利用二乙醇胺( DEA)对氯甲基化聚苯乙烯基树脂( PS-Cl)进行表面改性,制备了亲水性的PS-DEA树脂,然后以FeCl3·6H2 O和FeSO4·7H2 O为前驱体通过共沉淀法原位复合制备了磁性PS-DEA树脂.表征了磁性PS-DEA样品的形貌、结构以及磁性能,研究了PS-DEA和磁性PS-DEA对水溶液中Hg (域)的吸附性能.结果表明,含有 Fe3O4的磁性 PS-DEA树脂的比饱和磁化强度(Ms)为0.92 A·m2/kg,磁性树脂中Fe3 O4所占的质量分数为1.7%.用Langmuir等温模型拟合了PS-DEA和磁性PS-DEA对水溶液中Hg(域)的吸附数据,计算得到最大吸附量分别为320.51和352.11 mg/g,这表明磁性纳米粒子的引入有利于提高树脂的吸附性能,这种磁性树脂有望作为吸附剂用于水处理领域.
이용이을순알( DEA)대록갑기화취분을희기수지( PS-Cl)진행표면개성,제비료친수성적PS-DEA수지,연후이FeCl3·6H2 O화FeSO4·7H2 O위전구체통과공침정법원위복합제비료자성PS-DEA수지.표정료자성PS-DEA양품적형모、결구이급자성능,연구료PS-DEA화자성PS-DEA대수용액중Hg (역)적흡부성능.결과표명,함유 Fe3O4적자성 PS-DEA수지적비포화자화강도(Ms)위0.92 A·m2/kg,자성수지중Fe3 O4소점적질량분수위1.7%.용Langmuir등온모형의합료PS-DEA화자성PS-DEA대수용액중Hg(역)적흡부수거,계산득도최대흡부량분별위320.51화352.11 mg/g,저표명자성납미입자적인입유리우제고수지적흡부성능,저충자성수지유망작위흡부제용우수처리영역.
The hydrophilic PS-DEA resins were prepared by diethanolamine( DEA) for the surface modifier of chloromethylation polystyrene resins( PS-Cl) . In-situ magnetic PS-DEA composites were prepared by co-pre-cipitation method with FeCl3 ·6H2 O and FeSO4 ·7H2 O as precursors. The morphology, structure and mag-netic properties of the magnetic PS-DEA samples were characterized. The adsorption properties of PS-DEA and magnetic PS-DEA for Hg(II) in aqueous solution were investigated by batch methods. The results showed that the magnetic PS-DEA with magnetic Fe3O4 were prepared. The saturation magnetization(Ms) of the mag-netic PS-DEA was 0.92 A·m2/kg, and the Fe3 O4 contents of the magnetic PS-DEA were 1.7%( mass frac-tion) . The adsorption data of PS-DEA and magnetic PS-DEA for Hg(II) in aqueous solution were fitted using Langmuir isothermal model, respectively. The maximum adsorption capacities of PS-DEA and magnetic PS-DEA for Hg (II) were 320.51 and 352.11 mg/g, respectively, which demonstrated that the adsorption property of the PS-DEA resin was improved after introducing the magnetic nanoparticles. The obtained magnetic PS-DEA could be used as a promising magnetic adsorbent in waste water treatment.