Synthesis of core-shell magnetic molecular imprinted polymer by the surface RAFT polymerization for the fast and selective removal of endocrine disrupting chemicals from aqueous solutions

Liu, Ying; Li, Xin; Jia, Chen; Dong, Cunku; Qi, Jingyao; Yuan, Yixing

doi:10.1016/j.envpol.2010.02.007

Cited by 170 publications

(60 citation statements)

References 33 publications

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“…However, the traditional coating of Fe 3 O 4 particles cannot separate analytes efficiently from the complex biological or environmental samples. Fortunately, a method combining Fe 3 O 4 particles with molecularly imprinted polymer (Fe 3 O 4 @MIP) for extracting analytes from complex samples was developed [10][11][12][13][14]. MIP is a synthetic material which can selectively recognize the template molecule from related analogous compounds, and have been investigated as highly selective sorbents for SPE to concentrate and clean up samples prior to analysis [15,16].…”

Section: Introductionmentioning

confidence: 99%

Preparation of core–shell magnetic ion-imprinted polymer for selective extraction of Pb(II) from environmental samples

Zhang

Liu

et al. 2011

Chemical Engineering Journal

135

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a b s t r a c tA novel magnetic ion-imprinted polymer (Fe 3 O 4 @SiO 2 @IIP) was synthesized by using 3-(2-aminoethylamino)propyltrimethoxysilane (AAPTS) as the functional monomer, tetraethylorthosilicate (TEOS) as the cross-linker and Pb(II) as the template and evaluated for selective extraction of Pb(II) from environmental sample by magnetic solid phase extraction (M-SPE) procedure. The factors affecting separation and preconcentration of the target heavy metals involving pH, eluting solvent and sample volume were studied in detail. Under the optimized experimental conditions, the kinetics adsorption and adsorption capacity of the Fe 3 O 4 @SiO 2 @IIP toward Pb(II) were estimated. The results indicated that the adsorption mechanism is corresponding with the second-order adsorption process with correlation coefficient (r 2 = 0.990), and the maximum adsorption capacity is 19.61 mg g −1 . The relative selectivity factor (ˇ) values of Pb(II)/Cu(II), Pb(II)/Zn(II), Pb(II)/Cd(II) and Pb(II)/Hg(II) are 7. 41, 6.76, 3.75 and 6.39, respectively. The Fe 3 O 4 @SiO 2 @IIP was applied for extracting and detecting of Pb(II) in real environmental samples combined with atomic adsorption spectrometer successfully with high recoveries of 98.0%.

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Section: Introductionmentioning

confidence: 99%

Preparation of core–shell magnetic ion-imprinted polymer for selective extraction of Pb(II) from environmental samples

Zhang

Liu

et al. 2011

Chemical Engineering Journal

135

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“…This is possibly because the temperature range over which a mixture of compounds melts is dependent on their relative amounts. 26 Figure 2A shows the TG curve of three MIP prepared by different methods. The three MIP had similar TG curves except for the residues.…”

Section: Journal Of Agricultural and Food Chemistrymentioning

confidence: 99%

Selective Solid-Phase Extraction of Sudan I in Chilli Sauce by Single-Hole Hollow Molecularly Imprinted Polymers

Zhang

et al. 2011

J. Agric. Food Chem.

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A new single-hole hollow molecularly imprinted polymer (SHH-MIP) was prepared by multistep seed swelling polymerization using Sudan I as template molecule and successfully applied to selective solid-phase extraction (SPE) of Sudan dyes in chilli sauce samples. The polymers possessed high specific surface area obtained by nitrogen adsorption and good thermal stability without decomposition lower than 380°C by thermogravimetry analysis. Much higher binding capacity was exhibited than with irregular solid MIP prepared by bulk polymerization, because most of the binding sites were located in the surface of the polymers, facilitating template removal and mass transfer. Accordingly, the SHH-MIP was employed as SPE adsorbent for chilli sauce analysis and offered high recoveries for Sudan I in the range of 87.5−103.4% with the precision of 1.94−5.33% at three spiked levels. The SHH-MIP with high selectivity and high stability was demonstrated to be potentially applicable for high selective preconcentration and determination of trace Sudan dyes in complicated samples.

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“…[15][16][17][18][19] For instance, Li et al synthesized a core-shell magnetic imprinted polymer for the fast and selective removal of EDCs.…”

Section: 13mentioning

confidence: 99%

One-pot synthesis of magnetic molecularly imprinted microspheres by RAFT precipitation polymerization for the fast and selective removal of 17β-estradiol

Dong

Wang

et al. 2015

RSC Adv.

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A facile strategy was developed to prepare magnetic molecularly imprinted microspheres (MMIMs) for the selective recognition and effective removal of 17-beta-estradiol (17b-E2) by reversible additionfragmentation chain transfer precipitation polymerization. One-pot synthesis was employed, which could simplify the imprinting process and shorten the experimental period. The resultant MMIMs displayed fast kinetics and high binding capacity, and the adsorption processes followed LangmuirFreundlich isotherm and pseudo-second-order kinetic models. Excellent recognition selectivity toward 17b-E2 was attained over other phenolic estrogens such as 17-alpha-E2, estriol and estrone. The magnetic property of MMIMs provided fast and simple separation, and the recycling process for magnetic solid phase extraction (MSPE) was sustainable at least five times without obvious efficiency decrease. Furthermore, the MMIMs-MSPE presented satisfactory recoveries within 71.7-108.3% with the precisions of 1.1-6.0% for spiked 17b-E2 in water, soil and food samples. The developed MMIMs-based method proved to be a convenient and practical way in sample pretreatment and targeted pollutants removal.

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Synthesis of core-shell magnetic molecular imprinted polymer by the surface RAFT polymerization for the fast and selective removal of endocrine disrupting chemicals from aqueous solutions

Cited by 170 publications

References 33 publications

Preparation of core–shell magnetic ion-imprinted polymer for selective extraction of Pb(II) from environmental samples

Preparation of core–shell magnetic ion-imprinted polymer for selective extraction of Pb(II) from environmental samples

Selective Solid-Phase Extraction of Sudan I in Chilli Sauce by Single-Hole Hollow Molecularly Imprinted Polymers

One-pot synthesis of magnetic molecularly imprinted microspheres by RAFT precipitation polymerization for the fast and selective removal of 17β-estradiol

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