Synthesis of a pyridine-based covalent organic framework as an efficient adsorbent for rhodamine B removal.

ABSTRACT: Covalent organic frameworks (COFs), featured with crystalline structures, permanent porosity, and designable organic skeletons, are good candidates for serving as adsorbents. Herein, a new pyridine-based two-dimensional COF (TAPP-DBTA-COF) was constructed via the condensation of 2,4,6-tris(4-aminophenyl)pyridine and 2,5-dibromobenzene-1,4-dicarbaldehyde. TAPP-DBTA-COF displayed high-performance for the removal of rhodamine B (Rh B) from water with high capacity, good adaptability and reusability. The maximum adsorption capacity for Rh B can reach up to 1254 mg g^-1, and the kinetic constant was determined as k₂ = 0.00244 g mg^-1 min^-1. Moreover, the corresponding amorphous polymer of TAPP-DBTA-COF, termed as TAPP-DBTA-COP, was synthes

SUBMITTER: Chang K 

PROVIDER: S-EPMC10405783 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature