Capsular polypyrrole hollow nanofibers: an efficient recyclable adsorbent for hexavalent chromium removal

Zhao, Jian, Li, Zhenyu, Wang, Jinfeng, Li, Quanxiang and Wang, Xungai 2015, Capsular polypyrrole hollow nanofibers: an efficient recyclable adsorbent for hexavalent chromium removal, Journal of materials chemistry A, vol. 3, no. 29, pp. 15124-15132, doi: 10.1039/c5ta02525g.

Attached Files
Name Description MIMEType Size Downloads

Title Capsular polypyrrole hollow nanofibers: an efficient recyclable adsorbent for hexavalent chromium removal
Author(s) Zhao, Jian
Li, Zhenyu
Wang, Jinfeng
Li, Quanxiang
Wang, XungaiORCID iD for Wang, Xungai
Journal name Journal of materials chemistry A
Volume number 3
Issue number 29
Start page 15124
End page 15132
Total pages 9
Publisher Royal Society of Chemistry
Place of publication London, Eng.
Publication date 2015-08-07
ISSN 2050-7488
Summary Capsular polypyrrole hollow nanofibers (PPy-HNFs) were fabricated via in situ polymerization of pyrrole on an organic-inorganic template, followed by acid etching. Their application in removing hexavalent chromium (Cr(vi)) from aqueous solution was then investigated. The morphologies of the capsular PPy-HNFs were studied by both scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which showed that the PPy-HNFs had a capsular structure in the walls of hollow nanofibers. Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) data confirmed the adsorption of Cr on capsular PPy-HNFs. The adsorption capacity increased with reduced pH of the initial solution and the adsorption process can be described using the pseudo-second-order model. These capsular PPy-HNFs showed a high Cr(vi) adsorption capacity up to 839.3 mg g-1. This adsorption capacity was largely retained even after five adsorption/desorption cycles. Electrostatic attraction between Cr and PPy-HNFs was studied using a proposed adsorption mechanism. The capsular PPy-HNFs formed a flexible membrane, which allowed easy handling during application. This study has demonstrated the possibilities of using this capsular PPy-HNF membrane for heavy metal removal from aqueous solution.
Language eng
DOI 10.1039/c5ta02525g
Field of Research 030306 Synthesis of Materials
050205 Environmental Management
Socio Economic Objective 960912 Urban and Industrial Water Management
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, RSC
Persistent URL

Document type: Journal Article
Collections: Institute for Frontier Materials
GTP Research
Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 43 times in TR Web of Science
Scopus Citation Count Cited 46 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 683 Abstract Views, 3 File Downloads  -  Detailed Statistics
Created: Mon, 18 Apr 2016, 14:35:01 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact