Insights into Surface Ion-imprinted Materials for Heavy Metal Ion Treatment: Challenges and Opportunities

Ding, Chunmei; Deng, Yaocheng; Merchant, Austin; Su, Jiaying; Zeng, Guangyong; Long, Xiuyu; Zhong, Mei-e; Liu, Yang; Bai, Lianyang; Zhou, Xuguo; Liu, Xiangying

doi:10.1080/15422119.2022.2044352

Cited by 8 publications

(3 citation statements)

References 111 publications

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“…Compared to traditional imprinted polymers, lithium ion surface ion-imprinted polymers effectively overcome the challenge of imprinted sites being easily embedded. They significantly enhance mass transfer between recognition sites and lithium ions, thereby facilitating the elution and recombination of lithium ions [ 103 ]. However, the challenge of recycling imprinted materials persists.…”

Section: Different Types Of Lithium Ion-imprinted Materialsmentioning

confidence: 99%

“…The preparation of magnetic lithium ion-imprinted polymers primarily employs surface ion-imprinting technology. This involves grafting a polymer layer with a lithium ion cavity structure onto the surface of magnetic carriers or in the nearby area [ 103 ], which is mainly divided into chemical grafting and sol-gel method, where the sol-gel method is mostly based on ethyl orthosilicate as the cross-linking agent.…”

Section: Different Types Of Lithium Ion-imprinted Materialsmentioning

confidence: 99%

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Progress and Prospect of Ion Imprinting Technology in Targeted Extraction of Lithium

Zhi,

Duan,

Zhang

et al. 2024

Polymers

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Ion Imprinting Technology (IIT) is an innovative technique that produces Ion-Imprinted polymers (IIPs) capable of selectively extracting ions. IIPs exhibit strong specificity, excellent stability, and high practicality. Due to their superior characteristics, the application of IIPs for lithium resource extraction has garnered significant attention. This paper discusses the following aspects based on existing conventional processes for lithium extraction and the latest research progress in lithium IIPs: (1) a detailed exposition of existing lithium extraction processes, including comparisons and summaries; (2) classification, comparison, and summarization of the latest lithium IIPs based on different material types and methods; (3) summarization of the applications of various lithium IIPs, along with a brief description of future directions in the development of lithium IIP applications. Finally, the prospects for targeted recovery of lithium resources using lithium IIPs are presented.

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Section: Different Types Of Lithium Ion-imprinted Materialsmentioning

confidence: 99%

Section: Different Types Of Lithium Ion-imprinted Materialsmentioning

confidence: 99%

Progress and Prospect of Ion Imprinting Technology in Targeted Extraction of Lithium

Zhi,

Duan,

Zhang

et al. 2024

Polymers

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“…However, traditional IIPs suffer from the imprinted sites embedded within the polymer network having poor accessibility, which results in low mass transfer rates for target ions [8,9]. Surface ion-imprinting technology (SIIT) has been developed to combat these limitations [10]. The technique consists of grafting imprinting sites onto the matrix's surface, improving the speed and ease of the target metal ion's binding to the imprinting sites.…”

Section: Introductionmentioning

confidence: 99%

Selective Adsorption Behavior and Mechanism for Cd(II) in Aqueous Solution with a Recoverable Magnetie-Surface Ion-Imprinted Polymer

Zhang

Hu³

et al. 2023

Polymers

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A novel recoverable magnetic Cd(II) ion-imprinted polymer was synthesized on the surface of silica-coated Fe3O4 particles via the surface imprinting technique and chemical grafting method. The resulting polymer was used as a highly efficient adsorbent for the removal of Cd(II) ions from aqueous solutions. The adsorption experiments revealed that Fe3O4@SiO2@IIP had a maximum adsorption capacity of up to 29.82 mg·g−1 for Cd(II) at an optimal pH of 6, with the adsorption equilibrium achieved within 20 min. The adsorption process followed the pseudo-second-order kinetic model and the Langmuir isotherm adsorption model. Thermodynamic studies showed that the adsorption of Cd(II) on the imprinted polymer was spontaneous and entropy-increasing. Furthermore, the Fe3O4@SiO2@IIP could rapidly achieve solid–liquid separation in the presence of an external magnetic field. More importantly, despite the poor affinity of the functional groups constructed on the polymer surface for Cd(II), we improved the specific selectivity of the imprinted adsorbent for Cd(II) through surface imprinting technology. The selective adsorption mechanism was verified by XPS and DFT theoretical calculations.

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Lead-imprinted polyvinylidene fluoride membrane for selective removal of lead from contaminated water: material fabrication, filtration application, and mechanism study

Zhao

Lin

et al. 2023

Environ Sci Pollut Res

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Insights into Surface Ion-imprinted Materials for Heavy Metal Ion Treatment: Challenges and Opportunities

Cited by 8 publications

References 111 publications

Progress and Prospect of Ion Imprinting Technology in Targeted Extraction of Lithium

Progress and Prospect of Ion Imprinting Technology in Targeted Extraction of Lithium

Selective Adsorption Behavior and Mechanism for Cd(II) in Aqueous Solution with a Recoverable Magnetie-Surface Ion-Imprinted Polymer

Lead-imprinted polyvinylidene fluoride membrane for selective removal of lead from contaminated water: material fabrication, filtration application, and mechanism study

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