Effect of Functional Groups on the <scp>I₂</scp> Sorption Kinetics of Isostructural <scp>Metal–Organic</scp> Frameworks

In this work, the effect of functional groups on I 2 sorption kinetics is investigated using two different types isostructural metal‐organic frameworks, UiO‐66‐X series (X = H, Br, NO , NH (OH) and (COOH) ) M ( m ‐DOBDC) series, (M Co2+, Mg2+, Ni2+; ‐DOBDC 4− 4,6‐dioxo‐1,3‐benzenedicarboxylate). Among UiO‐66‐(COOH) exhibits fastest highest capacity due to dipole‐induced dipole interactions between carboxylic acid molecules. addition, faster chemisorption observed in because electrophilic aromatic substitution with . The mechanisms are further supported by fitting adsorption data pseudo‐first‐order pseudo‐second‐order kinetic models.