Synthesis and properties of cadmium(II)-imprinted polymer supported by magnetic multi-walled carbon nanotubes

被引：9

作者：

Zhao, Hongyan ^{[1
]}

Ye, Yuting ^{[1
]}

Cao, Shuyuan ^{[1
]}

Dai, Jiayong ^{[1
]}

Li, Lei ^{[1
]}

机构：

[1] Nanjing Med Univ, Sch Publ Hlth, Dept Hygien Anal & Detect, Nanjing 211166, Jiangsu, Peoples R China

来源：

ANALYTICAL METHODS | 2014年 / 6卷 / 23期

关键词：

SOL-GEL PROCESS; SELECTIVE SEPARATION; AQUEOUS-SOLUTION; HEAVY-METALS; ADSORPTION; REMOVAL; IONS; EXTRACTION; SORBENT; CU(II);

D O I：

10.1039/c4ay02083a

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel magnetic surface ion-imprinted polymer was developed by copolymerization of magnetic multi-walled carbon nanotubes as the core, 3-aminopropyltriethoxysilane (APTES) as the functional monomer and tetraethoxysilane (TEOS) as the cross-linker with chelating complexes of Cd(II). The Cd(II)-imprinted polymer was characterized by FT-IR spectroscopy, scanning electron microscopy (SEM) and a batch procedure. Under the optimized conditions, the maximum adsorption of Cd(II) was 27.90 mg g(-1) and the adsorption time was 70 min. The imprinted polymer showed higher selectivity for Cd(II) in comparison of the competitive adsorptions of Cd(II), Zn(II) and Cu(II) to the non-imprinted polymer. Relative selectivity factor (k') values of Cd(II)/Zn(II) and Cd(II)/Cu(II) were 15.44 and 14.32, respectively. The new Cd(II)imprinted polymer has been tested and applied for the separation and concentration of Cd(II) in tap water, with high recoveries ranging from 103.8% to 108.8%.

引用

页码：9313 / 9320

页数：8

共 28 条

[1] Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003
Alexander, C
Andersson, HS
Andersson, LI
Ansell, RJ
Kirsch, N
Nicholls, IA
O'Mahony, J
Whitcombe, MJ
[J]. JOURNAL OF MOLECULAR RECOGNITION, 2006, 19 (02) : 106 - 180
[2] Cadmium Toxicity and Treatment
Bernhoft, Robin A.
[J]. SCIENTIFIC WORLD JOURNAL, 2013,
[3] Adsorption of Cd(II) from aqueous solution onto pyrite
Borah, Dipu
Senapati, Kulakamal
[J]. FUEL, 2006, 85 (12-13) : 1929 - 1934
[4] Cu(II) removal from lithium bromide refrigerant by chemical precipitation and electrocoagulation
Cheng, Hefa
[J]. SEPARATION AND PURIFICATION TECHNOLOGY, 2006, 52 (01) : 191 - 195
[5] Selective removal of the heavy metal ions from waters and industrial wastewaters by ion-exchange method
Dabrowski, A
Hubicki, Z
Podkoscielny, P
Robens, E
[J]. CHEMOSPHERE, 2004, 56 (02) : 91 - 106
[6] Preconcentration of Pb(II), Cr(III), Cu(II), Ni(II) and Cd(II) ions in environmental samples by membrane filtration prior to their flame atomic absorption spectrometric determinations
Divrikli, Umit
Kartal, Aslihan Arslan
Soylak, Mustafa
Elci, Latif
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2007, 145 (03) : 459 - 464
[7] Synthesis and evaluation of an ion-imprinted functionalized sorbent for selective separation of cadmium ion
Fang, GZ
Tan, J
Yan, XP
[J]. SEPARATION SCIENCE AND TECHNOLOGY, 2005, 40 (08) : 1597 - 1608
[8] An ion-imprinted functionalized silica gel sorbent prepared by a surface imprinting technique combined with a sol-gel process for selective solid-phase extraction of cadmium(II)
Fang, GZ
Tan, J
Yan, XP
[J]. ANALYTICAL CHEMISTRY, 2005, 77 (06) : 1734 - 1739
[9] Magnetic ion-imprinted and -SH functionalized polymer for selective removal of Pb(II) from aqueous samples
Guo, Bin
Deng, Fang
Zhao, Yu
Luo, Xubiao
Luo, Shenglian
Au, Chaktong
[J]. APPLIED SURFACE SCIENCE, 2014, 292 : 438 - 446
[10] Preparation of a core-shell magnetic ion-imprinted polymer via a sol-gel process for selective extraction of Cu(II) from herbal medicines
He, Huan
Xiao, Deli
He, Jia
Li, Hui
He, Hua
Dai, Hao
Peng, Jun
[J]. ANALYST, 2014, 139 (10) : 2459 - 2466

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