We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A molecular extraction process for vanadium based on tandem selective complexation and precipitation.
- Authors
Osin, Oluwatomiwa A.; Lin, Shuo; Gelfand, Benjamin S.; Lee, Stephanie Ling Jie; Lin, Sijie; Shimizu, George K. H.
- Abstract
Recycling vanadium from alternative sources is essential due to its expanding demand, depletion in natural sources, and environmental issues with terrestrial mining. Here, we present a complexation-precipitation method to selectively recover pentavalent vanadium ions, V(V), from complex metal ion mixtures, using an acid-stable metal binding agent, the cyclic imidedioxime, naphthalimidedioxime (H2CIDIII). H2CIDIII showed high extraction capacity and fast binding towards V(V) with crystal structures showing a 1:1 M:L dimer, [V2(O)3(C12H6N3O2)2]2−, 1, and 1:2 M:L non-oxido, [V(C12H6N3O2)2] ̶ complex, 2. Complexation selectivity studies showed only 1 and 2 were anionic, allowing facile separation of the V(V) complexes by pH-controlled precipitation, removing the need for solid support. The tandem complexation-precipitation technique achieved high recovery selectivity for V(V) with a selectivity coefficient above 3 × 105 from synthetic mixed metal solutions and real oil sand tailings. Zebrafish toxicity assay confirmed the non-toxicity of 1 and 2, highlighting H2CIDIII's potential for practical and large-scale V(V) recovery. Amidst vanadium's growing demand and environmental concerns in mining, the researchers, using naphthalimidedioxime, crafted a breakthrough method for eco-friendly recovery. Their acid-stable agent and non-toxic complexes offer a promising solution for large-scale vanadium recovery from diverse sources.
- Subjects
VANADIUM; OIL sands; BINDING agents; COMPLEX ions; METAL ions; RESEARCH personnel
- Publication
Nature Communications, 2024, Vol 15, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-024-46958-6