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Title of Journal: Fibers Polym

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Abbravation: Fibers and Polymers

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The Korean Fiber Society

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DOI

10.1016/0363-8111(94)90111-2

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ISSN

1875-0052

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Surface modified ployacrylonitrile nanofibers and

Authors: Quan Feng Xueqian Wang Anfang Wei Qufu Wei Dayin Hou Wei Luo Xinhua Liu Zongqian Wang
Publish Date: 2011/12/07
Volume: 12, Issue: 8, Pages: 1025-1029
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Abstract

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 Cu2+ Cd2+ was 34482 and 45408 mmol/g dry fiber respectively nearly two times higher than that of AOPAN conventional fibers Besides the desorption rate of Cu2+ and Cd2+ from metal chelated AOPAN nanofibers was 87 and 92 respectively in 1 mol/l nitric acid solution for 60 min The isothermal processes were found to be in conformity with Langmuir model

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