Sol–gel derived ion imprinted thiocyanato-functionalized silica gel as selective adsorbent of cadmium(II)

Wu, Jin-Bao; Zang, Shuyan; Yan-li, YI

doi:10.1007/s10971-013-3029-2

Cited by 17 publications

(7 citation statements)

References 36 publications

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“…Some researchers prepared imprinted ionic polymers (IIPs) for adsorption of metal ions [ 144 – 147 ]. IIPs were prepared by either the functionalization of a support surface (e.g., silica gel) using an organic chelating group and subsequently imprinted with metal ions as a template or by the co-condensation of monomers containing functional groups (in the presence of metal ions) and then co-condensation of them by sol-gel processes and finally releasing metal ion from the prepared compound.…”

Section: Removal Of Heavy Metals By Organic-inorganic Hybrid Polymersmentioning

confidence: 99%

“…IIPs were prepared by either the functionalization of a support surface (e.g., silica gel) using an organic chelating group and subsequently imprinted with metal ions as a template or by the co-condensation of monomers containing functional groups (in the presence of metal ions) and then co-condensation of them by sol-gel processes and finally releasing metal ion from the prepared compound. For example, thiocyanato- [ 144 ] and amino-functionalized [ 145 ] monomers were used to synthesize Cd 2+ -imprinted polymers. These compounds showed high adsorption capacity and high selectivity toward templating ions.…”

Section: Removal Of Heavy Metals By Organic-inorganic Hybrid Polymersmentioning

confidence: 99%

“…Due to the high affinity of these functional groups for Fe 3+ and Cd 2+ , the adsorption rate in these kinds of adsorbents is rapid. As reported by a number of authors [ 144 − 147 ], they washed the used imprinted adsorbents with 3 M HCl and reused the regenerated adsorbent repeatedly without significant loss of adsorption capacity.…”

Section: Removal Of Heavy Metals By Organic-inorganic Hybrid Polymersmentioning

confidence: 99%

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Organic-Inorganic Hybrid Polymers as Adsorbents for Removal of Heavy Metal Ions from Solutions: A Review

2014

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Over the past decades, organic-inorganic hybrid polymers have been applied in different fields, including the adsorption of pollutants from wastewater and solid-state separations. In this review, firstly, these compounds are classified. These compounds are prepared by sol-gel method, self-assembly process (mesopores), assembling of nanobuilding blocks (e.g., layered or core-shell compounds) and as interpenetrating networks and hierarchically structures. Lastly, the adsorption characteristics of heavy metals of these materials, including different kinds of functional groups, selectivity of them for heavy metals, effect of pH and synthesis conditions on adsorption capacity, are studied.

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Section: Removal Of Heavy Metals By Organic-inorganic Hybrid Polymersmentioning

confidence: 99%

Section: Removal Of Heavy Metals By Organic-inorganic Hybrid Polymersmentioning

confidence: 99%

Section: Removal Of Heavy Metals By Organic-inorganic Hybrid Polymersmentioning

confidence: 99%

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Organic-Inorganic Hybrid Polymers as Adsorbents for Removal of Heavy Metal Ions from Solutions: A Review

2014

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“…Kinetics experiments showed about 80% of Pb 2+ and Cu 2+ ions were adsorbed after approximately 3 h. Kinetics and thermodynamics measurements of Cu 2+ and Pb 2+ were carried out at pH = 4 and 5, respectively in which these metal ions exist mainly as their free forms. Some researchers prepared imprinted ionic polymers (IIPs) for adsorption of metal ions [144][145][146][147]. IIPs were prepared by either the functionalization of a support surface (e.g., silica gel) using an organic chelating group and subsequently imprinted with metal ions as a template or by the co-condensation of monomers containing functional groups (in the presence of metal ions) and then co-condensation of them by sol-gel processes and finally releasing metal ion from the prepared compound.…”

Section: Adsorption Of Heavy Metals Using Materials Synthesized From Sol-gel Methodsmentioning

confidence: 99%

Organic-Inorganic Hybrid Polymers as Adsorbents for Removal of Heavy Metal Ions from Solutions: A Review

Samiey¹,

Cheng²,

Wu³

2023

Preprint

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“…The thiocyanate functional group has long been known for its strong affinity toward metals, and several researchers have reported its use in metal extraction [ 24 , 25 , 26 ] as well as in creating ion-imprinted polymers for a specific metal ion [ 27 , 28 ]. Although, some of these studies utilized the sol-gel process to implant a thiocyanate functional group on silica substrate, the processes are complex and time consuming and involve multi-steps.…”

Section: Introductionmentioning

confidence: 99%

Multi-Element Analysis Based on an Automated On-Line Microcolumn Separation/Preconcentration System Using a Novel Sol-Gel Thiocyanatopropyl-Functionalized Silica Sorbent Prior to ICP-AES for Environmental Water Samples

et al. 2021

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A sol-gel thiocyanatopropyl-functionalized silica sorbent was synthesized and employed for an automated on-line microcolumn preconcentration platform as a front-end to inductively coupled plasma atomic emission spectroscopy (ICP-AES) for the simultaneous determination of Cd(II), Pb(II), Cu(II), Cr(III), Co(II), Ni(II), Zn(II), Mn(II), Hg(II), and V(II). The developed system is based on an easy-to-repack microcolumn construction integrated into a flow injection manifold coupled directly to ICP-AES’s nebulizer. After on-line extraction/preconcentration of the target analyte onto the surface of the sorbent, successive elution with 1.0 mol L−1 HNO3 was performed. All main chemical and hydrodynamic factors affecting the effectiveness of the system were thoroughly investigated and optimized. Under optimized experimental conditions, for 60 s preconcentration time, the enhancement factor achieved for the target analytes was between 31 to 53. The limits of detection varied in the range of 0.05 to 0.24 μg L−1, while the limits of quantification ranged from 0.17 to 0.79 μg L−1. The precision of the method was expressed in terms of relative standard deviation (RSD%) and was less than 7.9%. Furthermore, good method accuracy was observed by analyzing three certified reference materials. The proposed method was also successfully employed for the analysis of environmental water samples.

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Sol–gel derived ion imprinted thiocyanato-functionalized silica gel as selective adsorbent of cadmium(II)

Cited by 17 publications

References 36 publications

Organic-Inorganic Hybrid Polymers as Adsorbents for Removal of Heavy Metal Ions from Solutions: A Review

Organic-Inorganic Hybrid Polymers as Adsorbents for Removal of Heavy Metal Ions from Solutions: A Review

Organic-Inorganic Hybrid Polymers as Adsorbents for Removal of Heavy Metal Ions from Solutions: A Review

Multi-Element Analysis Based on an Automated On-Line Microcolumn Separation/Preconcentration System Using a Novel Sol-Gel Thiocyanatopropyl-Functionalized Silica Sorbent Prior to ICP-AES for Environmental Water Samples

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