File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

정후영

Jeong, Hu Young
UCRF Electron Microscopy group
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Phytic Acid Doped Polyaniline Nanofibers for Enhanced Aqueous Copper(II) Adsorption Capability

Author(s)
Kim, Hyeong JinIm, SungjinKim, Jong ChanHong, Won G.Shin, KooJeong, Hu YoungHong Young Joon
Issued Date
2017-08
DOI
10.1021/acssuschemeng.7b00898
URI
https://scholarworks.unist.ac.kr/handle/201301/22613
Fulltext
http://pubs.acs.org/doi/abs/10.1021/acssuschemeng.7b00898
Citation
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v.5, no.8, pp.6654 - 6664
Abstract
This study demonstrates the enhanced Cu2+ adsorption capability of polyaniline nanofibers (PAni NFs) by doping of phytic acid. The PAni NFs were synthesized by radical polymerization process using acidic solutions of hydrochloric and phytic acid, yielding chlorinated (Cl-) and phytic acid-doped (Ph-) PAni NFs. The Ph-PAni NFs showed remarkably higher Cu2+-adsorption efficiency than Cl-PAni NFs, presumably owing to high capacity and/or high ionic affinity of the doped phytic acid in Ph-PAni NFs. The pH-dependent adsorption capability exhibited increasing Cu2+ adsorption trend as increasing aqueous pH because of spontaneous deprotonation of the doped phytic acid in a basic environment. Furthermore, Ph-PAni NFs showed stable, high Cu2+ adsorption capability, irrespective of Co2+ concentration in the bimetallic Cu and Co aqueous solution. Surface morphologies of PAni NFs were investigated using electron microscopy, and molecular structures were identified using X-ray photoemission and Fourier transform infrared spectroscopies. The ability of PAni NFs to capture aqueous Cu2+ is discussed in terms of surface functional groups doped to NFs. Surface modification and/or doping to enhance the adsorption capability of Cu(II) introduced in this study will provide a great venue for expanding the use of many other polymeric nanostructures for reclamation in metal mining as well as the conventional environmental applications such as water purification.
Publisher
AMER CHEMICAL SOC
ISSN
2168-0485
Keyword (Author)
Aqueous metal adsorptionCu2+ ion adsorptionDopingPhytic acidPolyanilinePolymeric nanofiberWater purification
Keyword
HEAVY-METAL IONSFILMSREMOVALXPSPOLYMERIZATIONNANOSTRUCTURESWASTEWATERSADSORBENTSSORPTIONSILICA

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.