scholarly journals Preparation and adsorption properties of Ni(ii) ion-imprinted polymers based on synthesized novel functional monomer

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 590-605
Author(s):  
Li Zhao ◽  
Xianzhi Hu ◽  
Futing Zi ◽  
Yingmei Liu ◽  
Deqiong Hu ◽  
...  
Keyword(s):  
Structural Characteristics ◽  
Maximum Adsorption Capacity ◽  
Functional Monomer ◽  
Experimental Conditions ◽  
Adsorption Selectivity ◽  
Isothermal Adsorption ◽  
Kinetic Experiment ◽  
Imprinted Polymers ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers

Abstract In this study, a novel functional monomer N-(1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethyl)acrylamide (NDTEA) was designed and synthesized, and was used to prepare Ni(ii) ion-imprinted polymers (Ni(ii)-IIPs). Sixteen kinds of Ni(ii)-IIP (Ni(ii)-IIP1–16) and corresponding non-imprinted polymers (NIP1–16) were prepared by precipitation polymerization method. After optimized condition experiment, Ni(ii)-IIP5 possessed maximum adsorption capacity and better imprinting factor under optimal experimental conditions which indicated by equilibrium adsorption experiments. The morphology and structural characteristics of Ni(ii)-IIP5 were characterized by scanning electron microscopy (SEM) and Brunauer–Emmett–Teller (BET). The adsorption selectivity of Ni(ii)-IIP5 was analyzed by ICP-OES, and the results showed that Ni(ii)-IIP5 had favorable selectivity recognition ability for Ni(ii) when Cu(ii), Co(ii), and Cd(ii) are used as competitive ions. The kinetic experiment indicated that the performance of Ni(ii) adsorption on the surface of Ni(ii)-IIP5 obeyed the pseudo-first-order model, and adsorption equilibrium was attained after 15 min. Isothermal adsorption process fitted to Langmuir and Freundlich isothermal adsorption models, simultaneously. The results showed that Ni(ii)-IIP5 prepared by using a new functional monomer had better permeation selectivity and higher affinity for Ni(ii), which also verified the rationality of the functional monomer design. At the same time, it also provided a broad application prospect for removal of Ni(ii) in complex samples.

Synthesis, Characterization and its Application of Cu2+ Ion Imprinted Polymers

2012 ◽  
Vol 512-515 ◽  
pp. 2333-2338
Author(s):  
Yong Feng Kang ◽  
Yan Li ◽  
Wu Ping Duan ◽  
Jing Xie ◽  
Jun Xia Kang
Keyword(s):  
Competitive Sorption ◽  
Functional Monomer ◽  
Imprinted Polymer ◽  
Imprinted Polymers ◽  
Maximum Sorption Capacity ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers ◽  
Visible Spectra ◽  
Maximum Sorption ◽  
Ft Ir

Cu2+-imprinted polymers (Cu(II)–IIPs) were prepared by thermal precipitation polymerization method with Cu2+ion as the template, 1,4-dihydroxyanthraquinone (AQ) as the functional monomer, ethylene glycol dimethacrylate (EGDMA) as a cross-linker. In synthesis processes,The functional monomer AQ, there is only one functional groups that can selectively recognize Cu2+ ion, is set in highly cross-linked polymer net, not to form covalent-linkage with polymer net. The imprinted polymer particles were characterized by UV-visible spectra, FT-IR, scanning electron microscopy and colorimetry. The sorption and selectivity capacity of Cu(II)–IIPs for Cu2+ ion were studied．The results showed that the imprinted polymer had good affinity for Cu2+. The maximum sorption capacity was 11.4 mg/g．The sorption equilibrium time was 50 min and the optimum pH for quantitative copper retention was 7.0. Competitive sorption of Cu2+, Co2+, Zn2+, Mg2+, Ca2+ from their mixture was also studied in a batch system. The relatively selective factor of copper to other metal ions were greater than 1. The Cu(II)–IIPs could be repeatedly used with high selectivity and stability for Cu2+.This Cu(II)–IIPs has been successfully applied to the separation and determination of the trace Cu2+ in real water samples.

Synthesis, Characterization, Evaluation of Potassium Tertatitanium Whisker Surface Ni(II) Ion-Imprinted Polymers and Selective Adsorption of Nickel

2010 ◽  
Vol 113-116 ◽  
pp. 644-650
Author(s):  
Wan Zhen Xu ◽  
Ping Ping Xu ◽  
Wei Zhou ◽  
Yong Sheng Yan
Keyword(s):  
Inductively Coupled Plasma ◽  
Selective Adsorption ◽  
Sol Gel ◽  
Emission Spectrometry ◽  
Maximum Adsorption Capacity ◽  
Plasma Atomic Emission Spectrometry ◽  
Solution Ph ◽  
Imprinted Polymers ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers

Ni(II) ion-imprinted polymers(Ni(II)-IIPs) was synthesis by the method of surface ion-imprinting in combination with sol-gel process, and prepared by the Ni(II) as template ion, Chitosan(CTS) as functional monomer, γ-Glycidoxypropyl trimethoxysilane (KH560) as linking agent, potassium tertatitanium whisker as carrier. After removing Ni(II) ion from the polymer, Ni(II)-IIPs capable of selectively rebinding Ni(II) ion were obtained. The prepared material was characterized by using the infrared spectra (IR) and scanning electron microscopy (SEM). A batch of adsorption experiments were performed to evaluate its adsorption behavior of Ni(II) using inductively coupled plasma atomic emission spectrometry (ICP-AES). The effect of solution pH, sorbent amount on the extraction of Ni(II) from aqueous solutions were studied. The maximum adsorption capacity of Ni(II) on polymer beads was about 33.1 mg•g−1. The Ni(II)-IIPs have a greater affinity for Ni(II) with respect to Cd(II), Co(II), Cu(II), Hg(II), Mg(II), Mn(II), Zn(II) and Pb(II) ions. Ni(II)-IIPs enabled the selective extraction of Ni(II) from a complex matrix. The prepared functional polymer was shown to be promising for selective pre-separation and enrichment of trace Ni(II) in environmental samples.

Systematic study on the synthesis of novel ion-imprinted polymers based on rhodizonate for the highly selective removal of Pb(II)

2021 ◽  
Vol 159 ◽  
pp. 104805
Author(s):  
Flor de Liss Meza López ◽  
Sabir Khan ◽  
Matheus Augusto da Silva ◽  
José Anchieta Gomes Neto ◽  
Gino Picasso ◽  
...  
Keyword(s):  
Systematic Study ◽  
Selective Removal ◽  
Imprinted Polymers ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers

Applications of Chitosan in Molecularly and Ion Imprinted Polymers

2020 ◽  
Vol 3 (3) ◽  
pp. 513-533 ◽  
Author(s):  
Abdelhafid Karrat ◽  
Abderrahman Lamaoui ◽  
Aziz Amine ◽  
José María Palacios-Santander ◽  
Laura Cubillana-Aguilera
Keyword(s):  
Imprinted Polymers ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers

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.

Effect of phosphate ion on sorption of Nd(III) ion from aqueous solution using ion imprinted polymers

2020 ◽  
Author(s):  
Muhammad Ali Zulfikar ◽  
Sri Wahyuni ◽  
Muhammad Yudhistira Azis ◽  
Muhammad Bachri Amran ◽  
Handajaya Rusli ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Imprinted Polymers ◽  
Phosphate Ion ◽  
Ion Imprinted ◽  
Ion Imprinted Polymers
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