XJIPC OpenIR  > 环境科学与技术研究室
Selective removal of mercury ions using a chitosan-poly(vinyl alcohol) hydrogel adsorbent with three-dimensional network structure
Wang, Xiaohuan; Deng, Wenye; Xie, Yuyu; Wang, Chuanyi; Wang, XH
2013
Source PublicationChemical Engineering Journal
ISSN13858947
Volume228Issue:7Pages:232-242
AbstractThe chitosan-poly(vinyl alcohol) (CTS-PVA) hydrogel with three-dimensional network structure was developed via a glutaraldehyde cross-linking method in combination with an alternate freeze-thawed process. The formation of the three-dimensional network structure was confirmed by SEM and parallel FT-IR measurements. According to the analysis of parallel FT-IR measurements and MM+ molecular mechanics theoretical simulation, the three-dimensional network architecture is built mainly by inter- and intra-molecular hydrogen bonds as well as C=N bonds formed by the reaction of -NH2 groups of CTS and -CHO groups of glutaraldehyde. Parallel adsorption experiments and comparative studies showed that the hydrogel adsorbent has superior adsorption capacity and selectivity for Hg(II) ions. Its adsorption capacity for Hg(II) ions reaches 585.90 mg/g. Its selectivity coefficient of the hydrogel for Hg(II) ions is 487.7, 36642.5, 284298.5 times higher than that for Cu(II) ions, Pb(II) ions, and Cd(II) ions, respectively. Its selective adsorption mechanism for Hg(II) ions was proposed based on FT-IR and XPS spectral analysis before and after Hg(II) adsorption. All nitrogen-containing functional groups are involved in Hg(II) adsorption, especially, -NHCOCH3 and C=N groups are the main selective functional groups responsible for Hg(II) adsorption. The existing form of the adsorbed Hg(II) may be in mercury acetate.
KeywordThree-dimensional Network Hg(Ii) Adsorption Selectivity Mechanism Chitosan
DOI10.1016/j.cej.2013.04.104
Indexed BySCI
WOS IDWOS:000326203500026
Citation statistics
Cited Times:54[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/3879
Collection环境科学与技术研究室
Corresponding AuthorWang, XH
AffiliationChinese Acad Sci, Xinjiang Tech Inst Phys & Chem, LEST, Urumqi 830011, Xinjiang, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Anal & Testing Ctr, Urumqi 830011, Xinjiang, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiaohuan,Deng, Wenye,Xie, Yuyu,et al. Selective removal of mercury ions using a chitosan-poly(vinyl alcohol) hydrogel adsorbent with three-dimensional network structure[J]. Chemical Engineering Journal,2013,228(7):232-242.
APA Wang, Xiaohuan,Deng, Wenye,Xie, Yuyu,Wang, Chuanyi,&Wang, XH.(2013).Selective removal of mercury ions using a chitosan-poly(vinyl alcohol) hydrogel adsorbent with three-dimensional network structure.Chemical Engineering Journal,228(7),232-242.
MLA Wang, Xiaohuan,et al."Selective removal of mercury ions using a chitosan-poly(vinyl alcohol) hydrogel adsorbent with three-dimensional network structure".Chemical Engineering Journal 228.7(2013):232-242.
Files in This Item:
File Name/Size DocType Version Access License
Selective removal of(2992KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Xiaohuan]'s Articles
[Deng, Wenye]'s Articles
[Xie, Yuyu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Xiaohuan]'s Articles
[Deng, Wenye]'s Articles
[Xie, Yuyu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Xiaohuan]'s Articles
[Deng, Wenye]'s Articles
[Xie, Yuyu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Selective removal of mercury ions using a chitosan-poly(vinyl alcohol) hydrogel adsorbent with three-dimensional network structure .pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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