ArticleEnvironmental science & technology2025
Safe and Sustainable by Design MOF Beads for Selective Entrapment and Recovery of Rare Earth Elements.
Article in Environmental science & technology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Selective heavy-metal sequestration and rare-earth element recovery using metal-organic frameworks.Nature protocols · 2026Review
- Metal-Organic Frameworks in Food Biotechnology: Opportunities, Challenges, and Future Perspectives for Probiotic Delivery, Precision Fermentation, and Circular Food Systems.Nanomaterials (Basel, Switzerland) · 2026Review
- Development of Advanced Materials and Technology for Green and Sustainable Environmental Remediation.Materials (Basel, Switzerland) · 2026Article
- A Transformation-First Roadmap for Safe and Sustainable Emerging Advanced Materials.Accounts of materials research · 2026Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We report the development of CA-BNMG-1 composite beads-cellulose acetate macrobeads embedded with nanosized copper imidazolate MOFs (BNMG-1) -engineered via nonsolvent-induced phase separation for the selective recovery of rare earth elements (REEs) from complex aqueous environments. This encapsulation strategy ensures uniform MOF dispersion, enhanced mechanical integrity, and minimized Cu(II) leaching (<1%), fulfilling the Safe and Sustainable by Design (SSbD) criteria. The CA matrix not only mitigates copper toxicity but also enables facile bead handling, recyclability, and scalable deployment in fixed-bed systems. Adsorption studies across a 10-REE standard solution and two simulated waste streams demonstrated significantly improved REE selectivity over pristine BNMG-1. Separation factors (SFs) for Yb(III) over Mn(II), Ni(II), and Na(I) reached 194.5, 325.8, and 339, respectively; Eu(III) showed SFs of 155.5, 260.5, and 271.2. The beads retained over 95% of their uptake capacity across multiple adsorption and single desorption cycles using mild acidic eluents, confirming excellent reusability and structural stability. This work advances a robust, low-toxicity, and scalable REE recovery platform that integrates adsorptive performance with environmental safety. CA-BNMG-1 beads offer a compelling alternative to solvent extraction, with potential for integration into circular economy strategies targeting REE recovery from e-waste, mine tailings, and industrial effluents-addressing both resource security and sustainability challenges.
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Registered trials
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