Synthesis of a new ionic imprinted polymer for the extraction of uranium from seawater

Zhang, Hongjuan; Liang, Hele; Chen, Qingde; Shen, Xinghai

doi:10.1007/s10967-013-2612-x

Cited by 30 publications

(23 citation statements)

References 37 publications

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“…The band at 1022 cm −1 is assigned to the stretching vibration of S=O group. Moreover the bands were assigned to C-O at 1061 and 1105 cm −1 and the C=O band at 1635 cm −1 [46,48,49,[51][52][53]. The above mentioned bands indicate the modification of amberlite XAD 2010 with ARS.…”

Section: Characterization Of the Modified Resinmentioning

confidence: 88%

A new extractant impregnated resin for separation of traces of uranium and thorium followed by their spectrophotometric determination in some geological samples

et al. 2019

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A new extractant-impregnated resin, alizarin red S -impregnated XAD-2010, is used as an adsorbent to separate and preconcentrate U(VI) and Th(IV) ions prior to their spectrophotometric determination. Various instrumental techniques such as elemental analysis, FTIR, and SEM analysis were employed for full characterization of the synthetic extractant. Optimization of the adsorption and elution conditions of U(VI) and Th(IV) ions using synthesized alizarin red S -impregnated XAD-2010 were studied. Langmuir isotherm model has the best fitting experimental data with a maximum adsorption capacity of 20.2 mg g −1 for U(VI) and 18.25 mg g −1 for Th(IV). The adsorption process of each metal ion by synthesized alizarin red S -impregnated XAD-2010 showed an exothermic pseudo-second-order adsorption process. The tolerance limits for several metal ions on alizarin red S -impregnated XAD-2010 were calculated, giving high tolerance limit. The optimized method was applied on international certified samples and different rock types bearing thorium and uranium with accurate results.

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Section: Characterization Of the Modified Resinmentioning

confidence: 88%

A new extractant impregnated resin for separation of traces of uranium and thorium followed by their spectrophotometric determination in some geological samples

et al. 2019

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“…[1][2][3] However, the depletable conventional uranium resources can only last for about decades. [4] Considering that the uranium mining and hydrometallurgy process usually causes serious water pollution, [5][6][7][8][9] it is necessary to extract uranium from industrial nuclear waste water which contains abundant and dissolved uranium (VI) for the sustainable development of nuclear power. [2,10] Many techniques, such as ion exchange, reverse osmosis, coprecipitation, have been developed to remove uranium from aqueous medium.…”

Section: Introductionmentioning

confidence: 99%

In situ growth of ZnO nanorod arrays on cotton cloth for the removal of uranium(vi)

Zhang

et al. 2015

RSC Adv.

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In situ growth of ZnO nanorod arrays on cotton cloth (ZnO/CC) was proposed to remove uranium (VI) from aqueous solution. The as-prepared adsorbent is easy separation from the reaction medium after adsorption. The effect factors for uranium adsorption, such as solution pH, initial U (VI) concentration, contact time, and temperature have been systematically investigated. The maximum adsorption capacity of uranium (VI) which was calculated by the Langmuir model at pH=5.0 and T=298 K is 431.03 mg g -1 , exhibiting its excellent uranium adsorption properties. It was observed that the kinetic data fit well to the pseudo-second-order kinetic model indicating that the rate-limiting step of adsorption process is chemical adsorption. Moreover, thermodynamic parameters [ΔH 0 =20.26 kJ mol -1 ΔG 0 =-5.66 kJ mol -1 (298 K) ΔS 0 =86.98 J mol -1 K -1 ] reveal that the uranium adsorption is endothermic and spontaneous. Therefore, the ZnO/CC is a potential adsorbent for recovery of uranium (VI) from aqueous solution.

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“…For helpful expounding on UO 2 2+ -IIPs, we selected some references that are presented in Table 5. Bulk polymerization 39,50,67,209,210 is most adopted in UO 2…”

Section: Actinide Elements Iipsmentioning

confidence: 99%

Current status and challenges of ion imprinting

et al. 2015

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Ion imprinting technology (IIT) aims to recognize ions while retaining the unique virtues of molecular imprinting technology (MIT), namely structure predictability, recognition specificity and application universality. Owing to special coordination or electrostatic interactions, ion imprinted polymers (IIPs) are generally compatible with aqueous media and have advantages over most molecularly imprinted polymers (MIPs). IIPs can achieve effective identification of water-soluble ions, especially heavy metals and radioactive elements that cause increasing concerns. The purpose of this review is to summarize recent advances of ion imprinting, focusing on the current status and challenges in fundamentals and applications that involve almost all types of ions and ion-related molecular imprinting. In addition, various smart strategies are highlighted, such as surface imprinting, stimuli-responsive imprinting, dual/ multiple components imprinting, click chemistry, and microwave-assisted heating. In this review, the elemental periodic table is first utilized as a template to introduce ion classification standards for various IIPs, including main groups, transition elements, actinides, rare earths, metalloids, anion imprinting and secondary imprinting. Finally, the challenges and possible solution strategies plus future trends are also proposed (302 references).

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Synthesis of a new ionic imprinted polymer for the extraction of uranium from seawater

Cited by 30 publications

References 37 publications

A new extractant impregnated resin for separation of traces of uranium and thorium followed by their spectrophotometric determination in some geological samples

A new extractant impregnated resin for separation of traces of uranium and thorium followed by their spectrophotometric determination in some geological samples

In situ growth of ZnO nanorod arrays on cotton cloth for the removal of uranium(vi)

Current status and challenges of ion imprinting

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