Novel MOFs-based ion-imprinted polymer for selective separation of cobalt ions from waste battery leaching solution

Li, Jian; Li, Yanqiu; Cui, Kuncheng; Li, Hongkun; Feng, Jian; Pu, Xiaoqin; Xiong, Wei; Liu, Ning; Yuan, Guoyuan

doi:10.1016/j.ica.2022.120922

Cited by 18 publications

(4 citation statements)

References 36 publications

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“…However, when the pH reaches 9, precipitation of cobalt ions occurs, as indicated by the analysis conducted using visual MINTEQ software (Fig. 5 B) 30 . After deducting the amount of precipitation, the actual adsorption amount decreases.…”

Section: Resultsmentioning

confidence: 97%

Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater

Yin,

Peng,

et al. 2024

Sci Rep

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This study aimed to synthesize a novel nanofiber adsorbent based on metal–organic frameworks (MOFs), ZIF-94-PAN, by incorporating ZIF-94 into polyacrylonitrile (PAN) through electrospinning. The investigation of the adsorption characteristics of ZIF-94-PAN for cobalt ions was undertaken, yielding findings that suggest an optimum ZIF-94 loading content within the ZIF-94-PAN composite of 8%. The adsorption experiments revealed that, under pH 8.3 and 298 K, ZIF-94-PAN-8% attained cobalt ion equilibrium adsorption (139.08 mg/g). Additionally, the adsorption kinetics of cobalt ions exhibited conformity with the pseudo-second-order model, whereas adherence to the Freundlich isotherm model indicated a non-homogeneous, endothermic process. XPS analysis unveiled that the adsorption mechanism was characterized by the coordination of nitrogen and oxygen atoms within ZIF-94-PAN with cobalt ions. This study effectively addressed the challenges of separating and recovering MOFs adsorbents by fabricating them as nanofibers. The remarkable adsorption performance and stability of the ZIF-94-PAN nanofibers highlight their potential for removing cobalt-contaminated wastewater.

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Section: Resultsmentioning

confidence: 97%

Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater

Yin,

Peng,

et al. 2024

Sci Rep

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“…[ 119 ] Some of these GIIPs composed of low‐cost, safe, and commercially available polymers, such as chitosan, [ 119a ] although acrylic‐based polymers [ 119c,120 ] and silica‐based materials containing crown ethers have also been developed. [ 121 ] In addition to protecting the environment, GIIP‐based recovery methods bring economic profits since the price of a LIB contains the fee that is associated with its appropriate disposal at the end of its service lifetime. Moreover, to address the issue of metal leaching from battery waste under acidic treatment conditions, the development of advanced GIIPs with a high stability and affinity under a harsh acidic environment is a top priority.…”

Section: Energy Harvesting and Storagementioning

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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“…Our team has previously developed cobalt ion adsorbents based on MOF materials, such as functionalized MOF materials, 19 MOF membranes, 20 and MOF ion-imprinted materials. 21,22 These materials have exhibited remarkable adsorption capabilities and selectivity specifically tailored to cobalt ions. However, the pragmatic utilization of MOFs as adsorbents has encountered constraints stemming from the proficient retrieval of the adsorbent in particulate configuration from the effluent medium.…”

Section: ■ Introductionmentioning

confidence: 99%

“…MOFs are widely used for the adsorption of heavy metal ions such as As(III), Cr(VI), and Hg(II) and radioactive nuclides Tc/Re(VII), U(VI), etc., with adsorption capacities that can even reach several hundred milligrams per gram. − However, the separation and recovery of cobalt are rarely reported in the literature. Our team has previously developed cobalt ion adsorbents based on MOF materials, such as functionalized MOF materials, MOF membranes, and MOF ion-imprinted materials. , These materials have exhibited remarkable adsorption capabilities and selectivity specifically tailored to cobalt ions. However, the pragmatic utilization of MOFs as adsorbents has encountered constraints stemming from the proficient retrieval of the adsorbent in particulate configuration from the effluent medium.…”

Section: Introductionmentioning

confidence: 99%

In Situ Synthesis of NH₂-MIL-53-Al/PAN Nanofibers for Removal Co(II) through an Electrospinning Process

Peng,

Pan,

Chen

et al. 2024

Langmuir

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In this study, researchers developed a novel composite material called NH 2 -MIL-53-Al/PAN, which consists of metal−organic frameworks (MOFs) grown on electrospun PAN nanofibers (NFs). The successful formation of the composite was confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR), and the hydrophilicity of NH 2 -MIL-53-Al/PAN was demonstrated by the water contact angle (WCA). Batch experiments were conducted to investigate the adsorption performance of Co(II) under different conditions. The maximum adsorption capacity reached 58.72 mg/g, and almost 95% of the adsorption was achieved within the first 6 h. The adsorption process was found to be spontaneous and endothermic and followed the pseudo-second-order kinetics and Langmuir models. Chemisorption and molecular layer adsorption are the main mechanisms of adsorption, and X-ray photoelectron spectroscopy (XPS) analysis further reveals that the interaction between the adsorbent and cobalt is a coordination interaction. In this study, NH 2 -MIL-53-Al was grown in situ on PAN to ensure effective loading of MOFs and prevent agglomeration during the NF mixing process. This approach successfully addressed the challenge of exposing active sites within the embedded MOF crystals. Additionally, it overcame the difficulty of recycling traditional MOF adsorbents. As a result, the exceptional performance of MOF NFs offers a promising solution for the efficient removal of cobalt-containing wastewater.

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Novel MOFs-based ion-imprinted polymer for selective separation of cobalt ions from waste battery leaching solution

Cited by 18 publications

References 36 publications

Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater

Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater

Greenificated Molecularly Imprinted Materials for Advanced Applications

In Situ Synthesis of NH₂-MIL-53-Al/PAN Nanofibers for Removal Co(II) through an Electrospinning Process

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Novel MOFs-based ion-imprinted polymer for selective separation of cobalt ions from waste battery leaching solution

Cited by 18 publications

References 36 publications

Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater

Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater

Greenificated Molecularly Imprinted Materials for Advanced Applications

In Situ Synthesis of NH2-MIL-53-Al/PAN Nanofibers for Removal Co(II) through an Electrospinning Process

Contact Info

Product

Resources

About

In Situ Synthesis of NH₂-MIL-53-Al/PAN Nanofibers for Removal Co(II) through an Electrospinning Process