A robust thorium–organic framework as a bifunctional platform for iodine adsorption and Cr(vi) sensitization

Abstract

Simple synthetic modulation based on thorium nitrate and tris((4-carboxyl)phenylduryl)amine (H₃TCBPA) gives rise to a new thorium-based metal–organic framework, Th-TCBPA, which features excellent hydrolytic and thermal stabilities. Incorporating electron-rich TCBPA³⁻ linkers not only endows Th-TCBPA with high adsorption capacity toward radioiodine vapor, but also makes it a luminescence sensor for the highly sensitive and selective detection of Cr(VI) anions.