Emerging developments in polymeric nanocomposite membrane-based filtration for water purification: A concise overview of toxic metal removal

Iqbal, Arfa; Cevik, Emre; Mustafa, Ayyaz; Qahtan, Talal F.; Zeeshan, Muhammad; Bozkurt, Ayhan

doi:10.1016/j.cej.2024.148760

Cited by 9 publications

(1 citation statement)

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“…Although polymer-based materials have shown suitable properties for application as adsorbents for metal ions, including tailorable surface functionalities, easy regeneration, and environmental compatibility, , they generally exhibit low adsorption capacity and selectivity. The incorporation of porous nanomaterials in polymer matrices is an advantageous strategy for improving their performance . Indeed, polymers are ideal supports for the fabrication of composite materials and adsorbent membranes, which synergically combine the properties of the polymeric support and the nanoporous filler.…”

Section: Introductionmentioning

confidence: 99%

Efficient Nickel and Cobalt Recovery by Metal–Organic Framework-Based Mixed Matrix Membranes (MMM-MOFs)

Nour,

Iqbal,

Navarro-Alapont

et al. 2024

ACS Sustainable Chem. Eng.

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Green energy transition has supposed to give a huge boost to the electric vehicle rechargeable battery market. This has generated a compelling demand for raw materials, such as cobalt and nickel, which are key common constituents in lithium-ion batteries (LIBs). However, their existing mining protocols and the concentrated localization of such ores have made cobalt and nickel mineral conundrums, and their supplies experience shortages, which threaten to slow the progress of the renewable energy transition. Aiming to contribute to the sustainable recycling of these valuable metals from LIBs and wastewater, in this work, we explore the use of four mixed matrix membranes (MMMs) embedding different metal−organic frameworks (MOFs), i.e., MIL-53(Al), MIL-53(Fe), MIL-101(Fe), and {Sr I I Cu I I 6 [(S,S)-serimox] 3 (OH) 2 (H 2 O)}•39H 2 O (SrCu 6 Ser) in polyether sulfone (PES), for the recovery of cobalt(II) and nickel(II) metal cations from mixed cobalt−nickel aqueous solutions containing common interfering ions. Whereas the neat PES membrane slightly contributes to the adsorption of metal ions, showing reduced removal efficiency values of 10.2 and 9.5% for Ni(II) and Co(II), respectively, the inclusion of MOFs in the polymeric matrix substantially improves the adsorption performances. The four MOF@ PES MMMs efficiently remove these metals from water, with MIL-53(Al)@PES being the one that presents better performance, with a removal efficiency up to 95% of Ni(II) and Co(II). Remarkably, SrCu 6 Ser@PES exhibits outstanding selectivity toward cobalt(II) cations compared to of nickel(II) ones, with removal efficiencies of 63.7 and 15.1% for Co(II) and Ni(II), respectively. Overall, the remarkable efficiencies, versatility, high environmental robustness, and cost-effective synthesis shown by this family of MOF@PES MMMs situate them among the best adsorbents for the extraction of this kind of contaminants.

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Section: Introductionmentioning

confidence: 99%