ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

An iodo-functionalized UiO-67 metal–organic framework for sensing disinfection byproducts

Vahid Amani and Fataneh Norouzi

Department of Chemistry Education, Farhangian University, Tehran, Iran

E-mail: v.amani@cfu.ac.ir

Received: 31 July 2023  Accepted: 4 November 2023

Abstract:

An iodo-functionalized UiO-67-type metal–organic framework (MOF) (UiO-67(I)₂) has been successfully synthesized via a solvothermal reaction. The fluorescence properties of diiodo-UiO-67 and UiO-67 MOFs toward sensing halogenated disinfection byproducts (DBPs) have been studied for the first time. To the development of intermolecular interactions between MOFs and DBPs, these analytes including halogen bonding donors and acceptors such as halogen, nitrogen, and amine are promising substrates for the sensing process. The results show that the sensing response of the MOFs toward halogenated DBPs significantly increased with the incorporation of halogen bonding (XB) functionalities. Noteworthy, in each class of DBPs, the sensing response of the considered MOFs regularly improved by moving from fluoro to the iodo group, which precisely indicates that halogen bonding is in charge.

Keywords: Sensor; Halogenated disinfection byproducts (DBPs); Metal–organic framework (MOF); UiO-67; UiO-67(I)2

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-023-03198-0

Chemical Papers 78 (3) 1699–1707 (2024)