期刊
FIBERS AND POLYMERS
卷 12, 期 8, 页码 1025-1029出版社
KOREAN FIBER SOC
DOI: 10.1007/s12221-011-1025-0
关键词
Surface modification; Ployacrylonitrile; Nanofiber; Chelation; Metal ions
资金
- National Natural Science Found of China [51006046]
- Research Fund for the Doctoral Program of Higher Education of China [200802951011, 20090093110004]
- Natural Science Foundation of Anhui Provincial education Department [KJ2009-119, KJ2011B027]
- Key Laboratory for Advanced Textile Materials and Preparation Technology of Ministry of Education [2011005]
Ployacrylonitrile (PAN) nanofibers were formed by electrospinning. Amidoxime ployacrylonitrile (AOPAN) nanofibers were prepared by reaction with hydroxylamine hydrochloride, which were used as the matrix for metal ions chelation. FTIR spectra of the PAN nanofibers and AOPAN nanofibers were recorded for analysis of the surface chemical structures. The AOPAN conventional fibers were also prepared for comparison, and surface morphologies of the modified PAN conventional fibers and PAN nanofibers were observed by FESEM. Metal ions concentrations were calculated by AAS. The chelated isothermal process and kinetics parameters of the modified PAN nanofibers and PAN conventional fibers were studied in this work. Results indicated that the saturated coordinate capacity of AOPAN nanofibers to Cu(2+), Cd(2+) was 3.4482 and 4.5408 mmol/g (dry fiber) respectively, nearly two times higher than that of AOPAN conventional fibers. Besides, the desorption rate of Cu(2+) and Cd(2+) from metal chelated AOPAN nanofibers was 87 and 92 % respectively in 1 mol// nitric acid solution for 60 min. The isothermal processes were found to be in conformity with Langmuir model.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据