Synthesis of a New Ion Imprinted Polymer Material for Separation and Preconcentration of Traces of Neodymium Ions

2011 ◽  
Vol 306-307 ◽  
pp. 705-708
Author(s):  
Qing Peng Liu ◽  
Hui Zhi Li ◽  
Hai Yan Zhuang ◽  
Mei Shan Pei
Keyword(s):  
Ternary Complex ◽  
Chelating Agent ◽  
Ternary Complexes ◽  
Cross Linking ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers ◽  
Separation And Preconcentration ◽  
Neodymium Ion

Neodymium ion imprinted polymers (IIP) were synthesized by formation of ternary complexes of neodymium ion with Vanillin Benzidine(VLB) and 4-vinylpyridine (VP) as chelating agent following copolymerizing with styrene as func­tional monomer and ethylene glycol dimethacrylate (EGDMA) as cross-linking monomer using 2,2´-azobisisobutyronitrile as initiator. Control polymers（CPs） were prepared under identical conditions without the use of neodymium imprint ion. The synthesized polymers were characterized by IR spectroscopy and elemental analyzer techniques. Of the several polymers synthesized, only the imprinted polymer formed with ternary complex of Nd3+–VLB–VP(1:1:2 IIP) showed quantitative enrichment of neodymium ion from aqueous solution.

scholarly journals Preparation of Nitrosulfonated Humic Acid-based Ion-imprinted Polymer and Study on Its Adsorption Properties

2021 ◽  
Author(s):  
An Wang ◽  
Xiaoran Sun ◽  
Yinuo Yan ◽  
Simeng Bian ◽  
Kaili Fan ◽  
...  
Keyword(s):  
Humic Acid ◽  
Crosslinking Agent ◽  
Organic Polymer ◽  
Lead Ion ◽  
Maximum Adsorption Capacity ◽  
Order Kinetic ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers

Abstract Ion imprinted polymer, a kind of high molecular organic polymer, which can separate and enrich various metal ions in water by changing the adsorption conditions. Used humic acid as raw materials, used HNO3 and H2SO4 as modifiers to synthesize nitrosulfonated humic acid, then used it as substrate, NIPAM as the functional monomer, Pb2+ as the template ion, MBA as the crosslinking agent, K2S2O8 and NaHSO3 as initiators to prepare lead ion imprinted polymers after cross-linking reaction. Used SEM, FT-IR, TG-DSC to characterize the obtained product, and explored the structure and performance of the product. The adsorption performance of IIPs (NSA/NIPAM) was studied by ultraviolet-visible spectrophotometry (UV-vis). The results show that the maximum adsorption capacity of IIPs (NSA/NIPAM) for Pb2+ is 81.33 mg/g, the optimal number of cycles of IIPs (NSA/NIPAM) is 10, In the presence of competing ions Cu2+ and Cd2+, selectivity coefficients are 18.04 (Pb2+/Cu2+) and 19.39 (Pb2+/Cd2+). The results of simulating the thermodynamic adsorption process of the polymers with Langmuir and Freundlich thermodynamic adsorption models show that the imprinted polymer conform to the second-order kinetic model and the Langmuir thermodynamic model, and belong to monolayer chemisorption.

Facile preparation of a novel Hg(ii)-ion-imprinted polymer based on magnetic hybrids for rapid and highly selective removal of Hg(ii) from aqueous solutions

RSC Advances ◽  
2016 ◽  
Vol 6 (18) ◽  
pp. 14916-14926 ◽  
Author(s):  
Qiugen Zhang ◽  
Jingyi Wu ◽  
Xubiao Luo
Keyword(s):  
Aqueous Solutions ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Efficient Removal ◽  
Base Interaction ◽  
Imprinted Polymers ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers ◽  
Facile Preparation ◽  
Soft Acid

This study reveals a facile strategy to prepare magnetic Hg(ii)-ion-imprinted polymers with incorporated Fe3O4@SiO2 particles for rapid and efficient removal of Hg(ii) ions, due to the soft acid–soft base interaction of Hg(ii) and allylthiourea.

Sensitive Determination of Uranium in Natural Waters Using UV-Vis Spectrometry After Preconcentration by Ion-Imprinted Polymer-Ternary Complexes

2016 ◽  
Vol 99 (4) ◽  
pp. 1043-1048 ◽  
Author(s):  
Tulin Bicim ◽  
Mehmet Yaman
Keyword(s):  
Natural Waters ◽  
Ftir Analysis ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Final Volume ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers ◽  
Sensitive Determination ◽  
Uranium Determination

Abstract The main purpose of this study was to achieve a substantial increase in the sensitivity of the uranium determination using UV-Vis spectrometry. To achieve this goal, ion-imprinted polymers were prepared for the uranyl (imprint) ion by the formation of a ternary (salicylaldoxime and 4-vinylpyridine) complex in 2-methoxy ethanol (porogen) following copolymerization with methacrylic acid. The synthesized polymers were characterized by FTIR analysis and thermogravimetric analysis. In the preconcentration step, the optimal pH was determined to be between values of 3.5 and 6.5. The adsorbed UO22+ was completely eluted by 10 mL of 3.0 mol L−1 HClO4. The developed method was applied to uranium (VI) determination in natural water samples. By using the initial volume of 500 mL and final volume of 5 mL, a concentration of 1 μg L−1 can be determined by applying the developed method in this study.

New ion-imprinted polymer-functionalized mesoporous SBA-15 for selective separation and preconcentration of Cr(iii) ions: modeling and optimization

RSC Advances ◽  
2015 ◽  
Vol 5 (128) ◽  
pp. 105789-105799 ◽  
Author(s):  
Mahdi Jamshidi ◽  
Mehrorang Ghaedi ◽  
Kheibar Dashtian ◽  
Shaaker Hajati
Keyword(s):  
Aqueous Media ◽  
Selective Separation ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Modeling And Optimization ◽  
Highly Efficient ◽  
Ion Imprinted ◽  
Separation And Preconcentration

A new Cr(iii) ion-imprinted polymer (Cr(iii)-IIP), prepared by functionalizing an SBA-15 support with dithizone (DZ) indicator, is promising and highly efficient for the separation and preconcentration of Cr(iii) ions from aqueous media.

A magnetic ion-imprinted polymer composed of silica-coated magnetic nanoparticles and polymerized 4-vinyl pyridine and 2,6-diaminopyridine for selective extraction and determination of lead ions

2020 ◽  
Vol 44 (18) ◽  
pp. 7561-7568
Author(s):  
Mohammad Landarani ◽  
Ali Akbar Asgharinezhad ◽  
Homeira Ebrahimzadeh
Keyword(s):  
Magnetic Nanoparticles ◽  
Selective Extraction ◽  
Lead Ions ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Ion Imprinted ◽  
Separation And Preconcentration ◽  
Vinyl Pyridine ◽  
Magnetic Ion

A novel, sensitive and highly selective magnetic ion-imprinted polymer for facile separation and preconcentration of trace quantities of Pb(ii) ions.

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