Metal Organic Framework advanced adsorbents for metal ions recovery from polluted water sources.

Abstract

We have explored the potentials of zirconium MOF materials to capture different metal ion cationic and anionic species following two different approaches, ligand and metal functionalization paths. In the first approach, a group of Zr-therepthalate (UiO-66) [3] based materials has been synthesised and deeply characterized, varying the ligand functionalization and defect density of the framework. Their performance as both Cr(VI) adsorbents and reducers has been assessed, studying the chromium speciation after the process. In the second approach, a cluster functionalization of zirconium trimesate material (MOF-808) [4] has been applied, anchoring amino acids and natural carboxylic acids to the framework that varies the metal specificity of the initial adsorbent.