Remarkably efficient removal of toxic bromate from drinking water with a porphyrin-viologen covalent organic framework.

ABSTRACT: The presence of carcinogenic bromate (BrO₃ ^-) in drinking water became a global concern and efforts towards its removal mainly focused on addressing the source. Herein, we rationally designed a porphyrin-based covalent organic framework (PV-COF) with a cationic surface to provide electrostatic interactions and a porphyrin core to induce hydrogen bonding interactions for the efficient removal of BrO₃ ^- from water. Through H-bonding and electrostatic interactions, PV-COF exhibited an exceptional bromate removal efficiency (maximum adsorption capacity, Q _max: 203.8 mg g^-1) with the fastest uptake rate (k _ads) of 191.45 g mg^-1 min^-1. The bromate concentration was reduc

SUBMITTER: Skorjanc T 

PROVIDER: S-EPMC8145354 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature