Novel Ion-Imprinted Carbon Material Induced by Hyperaccumulation Pathway for the Selective Capture of Uranium

Zhu, Jiahui; Liu, Qi; Liu, Jingyuan; Chen, Rongrong; Zhang, Hongsen; Yu, Jing; Zhang, Milin; Wang, Jun

doi:10.1021/acsami.8b09022

Cited by 52 publications

(14 citation statements)

References 64 publications

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“…PPA@MISS-PAF-1 under the AACE method captured 280.62 mg g À1 uranyl ions with a selectivity coefficient (mass ratio) over 43.9 for UO 2 2+ /VO 3 À (Figure 4A). Its selectivity was at least 20 times higher than that of the previous adsorbents, such as PIDO NF, 29 II-HPC, 34 and polyamidoxime 7 (Figure 4A, inset). We conducted the desorption experiment to evaluate the recovery percentage of uranium.…”

Section: Performance Against Competing Ions and Desorptionmentioning

confidence: 78%

Constructing an Ion Pathway for Uranium Extraction from Seawater

Wang

Meng

et al. 2020

Chem

136

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Section: Performance Against Competing Ions and Desorptionmentioning

confidence: 78%

Constructing an Ion Pathway for Uranium Extraction from Seawater

Wang

Meng

et al. 2020

Chem

136

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“…For traditional imprinting materials, the imprinting method of manufacturing specific cavities in a 3D polymeric network led to many invalid cavities (buried or unreleased cavities) and a low sorption capacity. − ,− Although a strategy of surface imprinting on a substrate was proposed to address this problem, the imprinted cavities are still manufactured in the stereostructure, resulting in decreased contacts between uranyl ions and imprinted cavities. Therefore, the improvement of adsorption capacity is limited.…”

Section: Resultsmentioning

confidence: 99%

Two-Dimensional Imprinting Strategy to Create Specific Nanotrap for Selective Uranium Adsorption with Ultrahigh Capacity

Zhou

Zhang

et al. 2022

ACS Appl. Mater. Interfaces

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Uranium extraction is highly challenging because of low uranium concentration, high salinity, and a large number of competing ions in different environments. The template strategy is developed to address the defect of poor selectivity, but the adsorption capacity is limited by cavity blocking during the preparation of materials. Herein, a twodimensional (2D) imprinting strategy is adopted to design 2D imprinted networks with specific nanotraps for effective uranium capture. The imprinted networks are established through the condensation polymerization of uranyl complexes, which are formed by aromatic building units coordinating with uranyl ions on the equatorial plane. Different from traditional imprinting materials that contain many invalid cavities (buried cavities or unreleased cavities), the as-prepared adsorbents possess tailored 2D nanotraps, which are open and specific to uranyl. Thus, the optimized networks not only show excellent selectivity for uranium (K d = 964,500 mL/g in multi-ion solution) and slight disturbance of high salinity but also possess an ultrahigh adsorption capacity of 1365.7 mg/g. In addition, this adsorbent shows a high extraction efficiency for uranium under a wide range of pH conditions and exhibits good regeneration performance. This work proposes a pioneering strategy of 2D imprinting networks to capture uranium specifically with high capacity and can be applied to material design in many other fields.

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“…Reproduced with permission. [ 163 ] Copyright 2018, American Chemical Society. B) Schematic illustration of the preparation process employed to obtain the Pt‐free molecularly imprinted hydrogel‐based magnetic Janus micromotors, and their recognition and release properties.…”

Section: Environmental Remediationmentioning

confidence: 99%

Greenificated Molecularly Imprinted Materials for Advanced Applications

et al. 2022

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Molecular imprinting technology (MIT) produces artificial binding sites with precise complementarity to substrates and thereby is capable of exquisite molecular recognition. Over five decades of evolution, it is predicted that the resulting host imprinted materials will overtake natural receptors for research and application purposes, but in practice, this has not yet been realized due to the unsustainability of their life cycles (i.e., precursors, creation, use, recycling, and end‐of‐life). To address this issue, greenificated molecularly imprinted polymers (GMIPs) are a new class of plastic antibodies that have approached sustainability by following one or more of the greenification principles, while also demonstrating more far‐reaching applications compared to their natural counterparts. In this review, the most recent developments in the delicate design and advanced application of GMIPs in six fast‐growing and emerging fields are surveyed, namely biomedicine/therapy, catalysis, energy harvesting/storage, nanoparticle detection, gas sensing/adsorption, and environmental remediation. In addition, their distinct features are highlighted, and the optimal means to utilize these features for attaining incredibly far‐reaching applications are discussed. Importantly, the obscure technical challenges of the greenificated MIT are revealed, and conceivable solutions are offered. Lastly, several perspectives on future research directions are proposed.

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Novel Ion-Imprinted Carbon Material Induced by Hyperaccumulation Pathway for the Selective Capture of Uranium

Cited by 52 publications

References 64 publications

Constructing an Ion Pathway for Uranium Extraction from Seawater

Constructing an Ion Pathway for Uranium Extraction from Seawater

Two-Dimensional Imprinting Strategy to Create Specific Nanotrap for Selective Uranium Adsorption with Ultrahigh Capacity

Greenificated Molecularly Imprinted Materials for Advanced Applications

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