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Enhanced chromium (VI) adsorption using nanosized chitosan fibers tailored by electrospinning
Li, Lei1,2,3; Li, Yanxiang1,2; Cao, Lixia1,2; Yang, Chuanfang1,2
2015-07-10
Source PublicationCARBOHYDRATE POLYMERS
ISSN0144-8617
Volume125Issue:JULPages:206-213
Abstract

Stacked chitosan nanofibers with an average diameter of 75 nm were successfully produced by electro-spinning using 5 wt% chitosan in acetic acid as the spinning solution. The fibers were then cross-linked with glutaraldehyde to remove chromium [Cr(VI)] from water via static adsorption. It was found that the adsorption correlated well with pseudo-second order kinetic model, and followed a mixed isotherm of Freundlich and Langmuir. The maximum nanofibers adsorption capacity was 131.58 mg/g, more than doubled that of chitosan powders. Common co-ions such as Cl-, NO3-, Na+, Ca2+ and Mg2+ had little or no effect on the adsorption but SO42- was an exception. Fourier transform infrared spectroscopy and X-ray photoelectron spectrophotometer analyses indicated that both amino and hydroxyl groups of chitosan were engaged in the adsorption. (C) 2015 Elsevier Ltd. All rights reserved.

KeywordChitosan Electrospinning Chromium (Vi) Nanofiber Adsorption
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.carbpol.2015.02.037
Indexed BySCI
Language英语
WOS KeywordCROSS-LINKED CHITOSAN ; HEXAVALENT CHROMIUM ; WASTE-WATER ; METAL-IONS ; POLYMER NANOFIBERS ; CR(VI) ; REMOVAL ; OPTIMIZATION ; MEMBRANES ; METHACRYLATE)
WOS Research AreaChemistry ; Polymer Science
WOS SubjectChemistry, Applied ; Chemistry, Organic ; Polymer Science
WOS IDWOS:000353604200024
Citation statistics
Cited Times:78[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/16772
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Lei,Li, Yanxiang,Cao, Lixia,et al. Enhanced chromium (VI) adsorption using nanosized chitosan fibers tailored by electrospinning[J]. CARBOHYDRATE POLYMERS,2015,125(JUL):206-213.
APA Li, Lei,Li, Yanxiang,Cao, Lixia,&Yang, Chuanfang.(2015).Enhanced chromium (VI) adsorption using nanosized chitosan fibers tailored by electrospinning.CARBOHYDRATE POLYMERS,125(JUL),206-213.
MLA Li, Lei,et al."Enhanced chromium (VI) adsorption using nanosized chitosan fibers tailored by electrospinning".CARBOHYDRATE POLYMERS 125.JUL(2015):206-213.
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