XJIPC OpenIR  > 环境科学与技术研究室
Preparation and characterization of chitosan-poly(vinyl alcohol)/bentonite nanocomposites for adsorption of Hg(II) ions
Wang, Xiaohuan; Yang, Li; Zhang, Junping; Wang, Chuanyi; Li, Qiuye; Wang, XH
2014
Source PublicationChemical Engineering Journal
ISSN13858947
Volume251Issue:9Pages:404-412
AbstractChitosan-poly(vinyl alcohol)/bentonite (CTS-PVA/BT) nanocomposites with high adsorption selectivity for Hg(II) ions were synthesized by introducing BT into the CTS-PVA polymer matrix. The structure and morphology of the nanocomposites were characterized by XRD, FTIR and SEM, etc. The BT content has great influence on microstructure of the nanocomposites. BT is in the exfoliated state in the polymer matrix when the BT content is less than 7%. Whereas some of BT tends to be intercalated by CTS and an intercalate-exfoliated nanostructure is formed as the BT content is beyond 7%. Some of BT particles disperse as tactoids in the polymeric matrix and a flocculated-intercalated nanostructure is formed with further increasing the BT content. The nanocomposites possess a mesoporous structure with a narrow size distribution and BT can effectively enhance the thermal stability. The nanocomposites have high adsorption capacity and selectivity for Hg(II) ions. The adsorption capacities for Hg(II) ions with a BT content of 0%, 10%, 30% and 50% are 460.18, 455.12, 392.19 and 360.73. mg/g, respectively, which are much higher than that for Cu(II), Cd(II) and Pb(II) ions. Interestingly, BT can improve the adsorption selectivity of the nanocomposites for Hg(II) ions. In addition, the nanocomposites can effectively remove Hg(II) of different mercuric salts with various initial concentrations and pH.
KeywordNanocomposite Bentonite Adsorption Selectivity Hg(Ii) Removal
DOI10.1016/j.cej.2014.04.089
Indexed BySCI
WOS IDWOS:000338802500045
Citation statistics
Cited Times:44[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/3745
Collection环境科学与技术研究室
Corresponding AuthorWang, XH
AffiliationChinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China; Henan Univ, Key Lab Special Funct Mat, Kaifeng 475004, Peoples R China;Sci & Technol Dev & Exchange Ctr Xinjiang Uygur A, Urumqi 830011, Peoples R China;Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiaohuan,Yang, Li,Zhang, Junping,et al. Preparation and characterization of chitosan-poly(vinyl alcohol)/bentonite nanocomposites for adsorption of Hg(II) ions[J]. Chemical Engineering Journal,2014,251(9):404-412.
APA Wang, Xiaohuan,Yang, Li,Zhang, Junping,Wang, Chuanyi,Li, Qiuye,&Wang, XH.(2014).Preparation and characterization of chitosan-poly(vinyl alcohol)/bentonite nanocomposites for adsorption of Hg(II) ions.Chemical Engineering Journal,251(9),404-412.
MLA Wang, Xiaohuan,et al."Preparation and characterization of chitosan-poly(vinyl alcohol)/bentonite nanocomposites for adsorption of Hg(II) ions".Chemical Engineering Journal 251.9(2014):404-412.
Files in This Item:
File Name/Size DocType Version Access License
Preparation and char(2661KB)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
[Yang, Li]'s Articles
[Zhang, Junping]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Xiaohuan]'s Articles
[Yang, Li]'s Articles
[Zhang, Junping]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Xiaohuan]'s Articles
[Yang, Li]'s Articles
[Zhang, Junping]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Preparation and characterization of chitosan-poly(vinyl alcohol)bentonite nanocomposites for adsorption of Hg(II) ions.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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