Fabrication of a novel magnetic rubidium ion-imprinted polymer for selective separation

Jiang, Chuanyang; Fang, Ming; Huang, An; Han, Shi‐Kui; Jin, Guan‐Ping

doi:10.1039/d1nj06207g

Cited by 6 publications

(1 citation statement)

References 48 publications

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“…Figure 7d displays the O 1s energy spectrum of NS/Cd-NIP, with two peaks at 532.0 eV and 531.8 eV assigned to -CO-NH2 and Si-O-Si, respectively. In comparison with NS/Cd-NIP, both the −NH2 peak in the N 1s energy spectrum shown in Figure 7e, and the -CO-NH2 peak in the O 1s energy spectrum shown in Figure 7f exhibit an increase in binding energy for NS/Cd-IIP [26]. This phenomenon is due to the coordination between functional groups and Cd(II).…”

Section: Xps Analysismentioning

confidence: 92%

Synthesis and Characterization of Cadmium Ion-Imprinted/Natural Sand Composite and Research on Its Adsorption Properties

et al. 2023

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Cadmium is a common heavy metal that can cause serious harm to human health, even in trace amounts. Therefore, it is of great significance to develop environmentally friendly, inexpensive, and readily available adsorbent materials with high selectivity. By preparing ion-imprinted composites on the surface of a suitable carrier through surface imprinting, the number of effective adsorption sites can be increased, and target ions can be more quickly identified. In this study, we synthesized a cadmium ion-imprinted/natural sand composite material (NS/Cd-IIP) using natural sand as the carrier, Cd(II) as the template ion, and acrylamide as the functional monomer. A series of characterization techniques were employed to confirm the composite. Static and dynamic adsorption experiments were conducted to investigate various factors affecting its adsorption performance. The optimum adsorption pH was found to be 7, and the adsorption equilibrium time was determined to be 105 min. The imprinted composites exhibited a static adsorption saturation capacity of 33.84 mg·g−1, which was significantly higher than that of the non-imprinted composites. The adsorption behavior of composites followed Langmuir isotherm and quasi-second-order kinetic. Thermodynamic parameters indicated that the adsorption process of NS/Cd-IIP for Cd(II) was exothermic, entropic, and spontaneous. The selectivity of NS/Cd-IIP towards Cd(II) was significantly higher than that towards other ions. By optimizing the dynamic adsorption conditions, the maximum adsorption capacity of NS/Cd-IIP was determined to be 3.77 mg·g−1, and the adsorption behavior conformed to the Thomas model. NS/Cd-IIP was used as a solid-phase extractant for trace determination of Cd(II) in tap water, achieving a recovery rate exceeding 101%.

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Section: Xps Analysismentioning

confidence: 92%

Synthesis and Characterization of Cadmium Ion-Imprinted/Natural Sand Composite and Research on Its Adsorption Properties

et al. 2023

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Recovery of rubidium from brine sources utilizing diverse separation technologies

et al. 2023

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High-sensitivity copper(II) sensor based on a protein/ion-imprinted polymer cooperative recognition strategy

Zhang

et al. 2023

Microchemical Journal

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Fabrication of a novel magnetic rubidium ion-imprinted polymer for selective separation

Abstract: With the increasing demand for rubidium resources, the development of adsorbents that can be simply, quickly and selectively extracted is of great importance. In this study, a novel magnetic ion...

Cited by 6 publications

References 48 publications

Synthesis and Characterization of Cadmium Ion-Imprinted/Natural Sand Composite and Research on Its Adsorption Properties

Synthesis and Characterization of Cadmium Ion-Imprinted/Natural Sand Composite and Research on Its Adsorption Properties

Recovery of rubidium from brine sources utilizing diverse separation technologies

High-sensitivity copper(II) sensor based on a protein/ion-imprinted polymer cooperative recognition strategy

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