高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (3): 490.

• 论文 • 上一篇    下一篇

氧化还原功能纤维的研究──含醇胺基纤维的制备及其与Au3+的氧化还原吸附反应

汤顺清, 陆耘, 曾汉民   

  1. 中山大学材料科学研究所, 广州 510275
  • 收稿日期:1995-03-29 出版日期:1996-03-24 发布日期:1996-03-24
  • 通讯作者: 汤顺清,男27岁,博士,讲师,现在暨南大学生物医学工程研究所工作.
  • 作者简介:汤顺清,男27岁,博士,讲师,现在暨南大学生物医学工程研究所工作.
  • 基金资助:

    国家自然科学基金;国家教育委员会博士点基金

Studies on Functional Redox Fiber──Preparation of Fibers Containing Hydroxy-alkylamine Groups and Their Redox Adsorption Reaction Towards Au3+

TANG Shun-Qing, LU Yun, ZENG Han-Min   

  1. Materials Science Institrte of Zhongshan University, Guangzhou 510275
  • Received:1995-03-29 Online:1996-03-24 Published:1996-03-24

摘要: 用二乙醇胺、乙醇胺及三乙醇胺与反应性氯甲基化纤维进行胺化反应,得到的功能纤维Ⅰ、Ⅱ和Ⅲ的含氮量分别为2.26、2.71和1.86mmo1/g.吸附实验结果表明,纤维Ⅰ、Ⅱ和Ⅲ对Au3+的最大吸附量分别为550、620、409mg/g,且能将部分吸附态Au3+还原成单质金。通过元素分析、红外光谱、核磁共振谱以及光电子能谱证实纤维中与氮原子相邻的羟基碳原子先被氧化成了羰基而氮原子未被氧化。

关键词: 氧化还原纤维, 含二乙醇胺基纤维, 金, 氧化还原吸附, 氧化还原机理

Abstract: Three kinds of functional fibers Ⅰ,Ⅱ and Ⅲ are prepared by amination of reactive chloromethylated fiber with diethanolamine, ethanolamine and triethanolamine, and their nitrogen contained amount is 2.26,2.71 and 1.86 mmol/g,respectively.The results of adsorption experiments indicate that maximum adsorption amount of the fibers towards Au3+ is 550,620 and 409 mg/g, respectively,and they can reduce partly Au (Ⅲ) adsorbed into Au(0).By elemental analysis, IR, NMRand ESCA,it is proved that carbon atoms bonding with hydroxyl groups near nitrogen atoms are oxidized into carbonyl ones during redox reaction of fibers conatining hydroxy-alkylamine groups with Au (Ⅲ),but nitrogen atoms are not done.

Key words: Redox fiber, Fiber containing diethanolamine group, Gold, Redox adsorption, Redox mechanism

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