应用化学 ›› 2010, Vol. 27 ›› Issue (09): 1042-1045.DOI: 10.3724/SP.J.1095.2010.90693

• 研究论文 • 上一篇    下一篇

亲水性氨基吡啶树脂的合成及其吸附性能

邱从交1,刘美玲1,李海涛1,2*   

  1. (1.湖南师范大学化学生物学及中药分析教育部重点实验室,湖南师范大学化学化工学院 长沙 410081;
    2.湖南安全技术职业学院 长沙 410151)
  • 收稿日期:2009-10-22 修回日期:2010-02-23 出版日期:2010-09-10 发布日期:2010-09-10
  • 通讯作者: 李海涛,男,教授; E-mail:liumeilingww@126.com; 研究方向:功能高分子材料
  • 作者简介:邱从交,男,湖南邵阳人,在读硕士研究生;E-mail: qiucongjiao2008@163.com; 研究方向:功能高分子材料
  • 基金资助:
    湖南省自然科学基金(07JJ3024)资助项目

Synthesis and Adsorption Performance of Hydrophilic Aminopyridine Resin

QIU Cong-Jiao1, LIU Mei-Ling1,  LI Hai-Tao1,2*   

  1. (1.Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research(Ministry of
    Education),College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081;
    2.Safety Professional and Technology College,Changsha 410081)
  • Received:2009-10-22 Revised:2010-02-23 Published:2010-09-10 Online:2010-09-10

摘要:

将氨基吡啶功能基引入亲水性大孔球状聚甲基丙烯酸环氧丙酯(PGMA),合成了高亲水性的氨基吡啶螯合树脂(PGMA-AP),考察了该树脂对Hg2+、Pb2+、Cu2+、Ni2+等重金属离子的静态吸附性能及影响因素。 结果表明,该树脂对上述4种重金属离子在25 ℃时的静态饱和吸附容量分别为2.145、1.715、1.023和0.654 mmol/g,最佳吸附pH值为4.5~5.0,吸附性能随温度升高而改善,在实验浓度范围内该树脂对上述重金属离子的等温吸附符合Langmuir和Freundlich方程。

关键词: 聚甲基丙烯酸环氧丙酯, 氨基吡啶, 重金属离子

Abstract:

A hydrophilic resin with 4-aminopyridine was synthesized by the amination of macroporous glycidyl methacrylatedivinylbenzene copolymer(PGMA) beads with 4-aminopyridine. Its static adsorption performance and influence factors toward Hg(Ⅱ), Pb(Ⅱ), Cu(Ⅱ), Zn(Ⅱ) were investigated. At 25 ℃, the static adsorption capacities for Hg(Ⅱ), Pb(Ⅱ), Cu(Ⅱ), Zn(Ⅱ) are 2.145, 1.715, 1.023 and 0.654 mmol/g, respectively. The optimal pH value for the adsorption is in the range of 4.5~5.0. In addition, the adsorptive properties for the heavy metal ions could be improved with the increase of temperatures. The adsorption isotherms approximately fit the Langmuir and Freundlich equations within the range of experimental concentrations.

Key words: poly(glycidylmathacrylate), aminopyridine, metal ions

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