ArticleACS omega2025
Attachment of Tridentate Ligand onto the Polyhedral Oligomeric Silsesquioxanes as an Efficient Strategy to Capture La(III) Ions: A Comparative Study of Homogeneous and Heterogeneous Systems Using Potentiometric Titration.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Developing sustainable methods for lanthanide ion recovery is a relevant area of research that seeks to promote the efficient reuse of these valuable chemical elements present in several electronic devices. Adsorption techniques using materials functionalized with chelating groups, such as modified Polyhedral Oligomeric Silsesquioxanes (POSS) matrices, may play a crucial role in capturing these metals. This work investigates the coordination of the lanthanum-(III) ion with two tridentate organic ligands: bis-(pyridin-2-ylmethyl)-amine (L1) and (pyridin-2-ylmethyl)-(thiophen-2-ylmethyl)-amine (L2). The results revealed stronger interactions for L1, with higher formation constants (9.0 for [LaL1]
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