Selective extraction of gadolinium using free-standing imprinted mesoporous carboxymethyl chitosan films with high capacity

Xudong Zheng; Yi Zhang; Tingting Bian; Yuzhe Zhang; Fusheng Zhang; Yongsheng Yan

doi:10.1007/s10570-018-2124-5

Selective extraction of gadolinium using free-standing imprinted mesoporous carboxymethyl chitosan films with high capacity

Xudong Zheng, Yi Zhang, Tingting Bian, Yuzhe Zhang, Fusheng Zhang, Yongsheng Yan

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

Abstract: Novel imprinted mesoporous carboxymethyl chitosan films (IMCFs) were investigated in detail. When acting as adsorbents, imprinted mesoporous carboxymethyl chitosan films with highly ordered chiral nematic structures, exhibit efficient adsorption for gadolinium ions (Gd(III)). The maximum adsorption capacity of IMCFs calculated from Langmuir isotherm model was 25.372 mg g ⁻¹ at pH 7.0. Due to the presence of highly selective imprinted sites, chitosan films possess significant selectivity for Gd(III), compared with other rare earth ions. More importantly, carboxymethyl chitosan films could be retrieved conveniently and quickly without extra operations, which greatly promote their recycling. Reusability tests further demonstrated films can be considered as stable and reliable adsorbents, enhancing their potential industrial applications. Graphical abstract: [Figure not available: see fulltext.].

Original language	English
Pages (from-to)	1209-1219
Number of pages	11
Journal	Cellulose
Volume	26
Issue number	2
DOIs	https://doi.org/10.1007/s10570-018-2124-5
State	Published - 30 Jan 2019
Externally published	Yes

Keywords

Dysprosium
Ion imprinting
Mesoporous chitosan films
Solid–liquid extraction

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10.1007/s10570-018-2124-5

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title = "Selective extraction of gadolinium using free-standing imprinted mesoporous carboxymethyl chitosan films with high capacity",

abstract = " Abstract: Novel imprinted mesoporous carboxymethyl chitosan films (IMCFs) were investigated in detail. When acting as adsorbents, imprinted mesoporous carboxymethyl chitosan films with highly ordered chiral nematic structures, exhibit efficient adsorption for gadolinium ions (Gd(III)). The maximum adsorption capacity of IMCFs calculated from Langmuir isotherm model was 25.372 mg g −1 at pH 7.0. Due to the presence of highly selective imprinted sites, chitosan films possess significant selectivity for Gd(III), compared with other rare earth ions. More importantly, carboxymethyl chitosan films could be retrieved conveniently and quickly without extra operations, which greatly promote their recycling. Reusability tests further demonstrated films can be considered as stable and reliable adsorbents, enhancing their potential industrial applications. Graphical abstract: [Figure not available: see fulltext.].",

keywords = "Dysprosium, Ion imprinting, Mesoporous chitosan films, Solid–liquid extraction",

author = "Xudong Zheng and Yi Zhang and Tingting Bian and Yuzhe Zhang and Fusheng Zhang and Yongsheng Yan",

note = "Publisher Copyright: {\textcopyright} 2018, Springer Nature B.V.",

year = "2019",

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day = "30",

doi = "10.1007/s10570-018-2124-5",

language = "英语",

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TY - JOUR

T1 - Selective extraction of gadolinium using free-standing imprinted mesoporous carboxymethyl chitosan films with high capacity

AU - Zheng, Xudong

AU - Zhang, Yi

AU - Bian, Tingting

AU - Zhang, Yuzhe

AU - Zhang, Fusheng

AU - Yan, Yongsheng

PY - 2019/1/30

Y1 - 2019/1/30

N2 - Abstract: Novel imprinted mesoporous carboxymethyl chitosan films (IMCFs) were investigated in detail. When acting as adsorbents, imprinted mesoporous carboxymethyl chitosan films with highly ordered chiral nematic structures, exhibit efficient adsorption for gadolinium ions (Gd(III)). The maximum adsorption capacity of IMCFs calculated from Langmuir isotherm model was 25.372 mg g −1 at pH 7.0. Due to the presence of highly selective imprinted sites, chitosan films possess significant selectivity for Gd(III), compared with other rare earth ions. More importantly, carboxymethyl chitosan films could be retrieved conveniently and quickly without extra operations, which greatly promote their recycling. Reusability tests further demonstrated films can be considered as stable and reliable adsorbents, enhancing their potential industrial applications. Graphical abstract: [Figure not available: see fulltext.].

AB - Abstract: Novel imprinted mesoporous carboxymethyl chitosan films (IMCFs) were investigated in detail. When acting as adsorbents, imprinted mesoporous carboxymethyl chitosan films with highly ordered chiral nematic structures, exhibit efficient adsorption for gadolinium ions (Gd(III)). The maximum adsorption capacity of IMCFs calculated from Langmuir isotherm model was 25.372 mg g −1 at pH 7.0. Due to the presence of highly selective imprinted sites, chitosan films possess significant selectivity for Gd(III), compared with other rare earth ions. More importantly, carboxymethyl chitosan films could be retrieved conveniently and quickly without extra operations, which greatly promote their recycling. Reusability tests further demonstrated films can be considered as stable and reliable adsorbents, enhancing their potential industrial applications. Graphical abstract: [Figure not available: see fulltext.].

KW - Dysprosium

KW - Ion imprinting

KW - Mesoporous chitosan films

KW - Solid–liquid extraction

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DO - 10.1007/s10570-018-2124-5

M3 - 文章

AN - SCOPUS:85056349548

SN - 0969-0239

VL - 26

SP - 1209

EP - 1219

JO - Cellulose

JF - Cellulose

IS - 2

ER -

Selective extraction of gadolinium using free-standing imprinted mesoporous carboxymethyl chitosan films with high capacity

Abstract

Keywords

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