含有季铵盐的超高分子量聚乙烯纤维对Au(Ⅲ)的吸附效应

李光珍; 高乾宏; 胡江涛; 李荣; 邢哲; 吴国忠

doi:10.11889/j.1000-3436.2016.rrj.34.030301

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含有季铵盐的超高分子量聚乙烯纤维对Au(Ⅲ)的吸附效应

辐射化学 | 更新时间：2021-12-10

- 含有季铵盐的超高分子量聚乙烯纤维对Au(Ⅲ)的吸附效应
- Adsorption effects of quaternary ammonium-based ultrahigh molecular weight polyethylene fiber on Au(Ⅲ) ions
- 辐射研究与辐射工艺学报 2016年34卷第3期页码：24-30
- 作者机构：
  
  1.江西省萍乡市萍乡学院萍乡 337000
  2.中国科学院上海应用物理研究所嘉定园区上海 201800
  3.中国科学院大学北京 100049
  4.上海科技大学物质与技术学院上海 200031
- 作者简介：
  
  [ "李光珍,女,1972年5月出生,2007年于华东师范大学获得硕士学位,讲师,主要从事与化学教育相关的研究工作,E-mail:1205838928@qq.com", "LI Guangzhen (female) was born in May 1972 and received her master degree from East China Normal University in 2007, majoring in chemical education-related research as a lecturer. E-mail: 1205838928@qq.com" ]
  吴国忠,博士,研究员,E-mail:wugz@sinap.ac.cnPh.D. WU Guozhong, professor, E-mail: wugz@sinap.ac.cn
- 基金信息：
  
  国家自然科学基金资助(11275252)
- DOI：10.11889/j.1000-3436.2016.rrj.34.030301
  中图分类号：
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李光珍, 高乾宏, 胡江涛, 等. 含有季铵盐的超高分子量聚乙烯纤维对Au(Ⅲ)的吸附效应[J]. 辐射研究与辐射工艺学报, 2016,34(3):24-30.

Guangzhen LI, Qianhong GAO, Jiangtao HU, et al. Adsorption effects of quaternary ammonium-based ultrahigh molecular weight polyethylene fiber on Au(Ⅲ) ions[J]. Journal of Radiation Research and Radiation Proces, 2016,34(3):24-30.
李光珍, 高乾宏, 胡江涛, 等. 含有季铵盐的超高分子量聚乙烯纤维对Au(Ⅲ)的吸附效应[J]. 辐射研究与辐射工艺学报, 2016,34(3):24-30. DOI： 10.11889/j.1000-3436.2016.rrj.34.030301.

Guangzhen LI, Qianhong GAO, Jiangtao HU, et al. Adsorption effects of quaternary ammonium-based ultrahigh molecular weight polyethylene fiber on Au(Ⅲ) ions[J]. Journal of Radiation Research and Radiation Proces, 2016,34(3):24-30. DOI： 10.11889/j.1000-3436.2016.rrj.34.030301.

摘要

利用预辐射接枝技术制备含有季铵盐官能团的超高分子量聚乙烯(UHMWPE-g-P(GMA-co-MA)-TETAGTA)纤维。研究该纤维对Au(Ⅲ)的吸附性能,重点考察了起始溶液的pH值、初始Au(Ⅲ)离子浓度和温度对吸附容量的影响。实验结果表明,UHMWPE-g-P(GMA-co-MA)-TETA-GTA纤维对Au(Ⅲ)的吸附速率较快、吸附容量大,180 min内能够达到吸附平衡;在溶液的pH值为3时吸附容量最大(355 mg/g)。该吸附过程符合准二级动力学模型和和Langmuir等温吸附模型,吸附反应是一个熵减少的放热反应。

Abstract

The adsorption behavior of Au(Ⅲ) ions on the quaternary ammonium-based ultrahigh molecular weight polyethylene fiber (UHMWPE) fibrous adsorbent (UHMWPE-g-P(GMA-co-MA)-TETA-GTA) prepared by pre-irradiation grafting technique was investigated, while influences of initial pH value of the solution, Au(Ⅲ) ion concentrations and temperature were also concerned. The results showed that the adsorption equilibrium of UHMWPE-g-P (GMA-co-MA)-TETA-GTA fiber for Au(Ⅲ) adsorption could be reached within 180 min and the adsorption capacity reached maximum(355 mg/g) at pH=3. Adsorption kinetic pattern is in good agreement with the pseudo-second-order model, and the Langmuir isotherm model fits the adsorption equilibrium data well. This adsorption reaction is an exothermic reaction entropy reduction.

关键词

Au(Ⅲ)吸附季铵盐官能团超高分子量聚乙烯纤维

Keywords

Au(Ⅲ)AdsorptionQuaternary ammonium functional groupsUltrahigh molecular weight polyethylene fiber

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