A Niobium Coordination Polymer as an Efficient Sorbent for Caffeine Detection in Surface Water.

ABSTRACT: Herein, it is reported the synthesis of a niobium-based metal-organic framework (MOF), [Nb-(Bez-(COO)₂)] _n , for the extraction of caffeine from surface waters. The material was synthesized and characterized by Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET) analysis, which confirmed the coordination between the ligand (1,4-benzenodicarboxylic, (Bez-(COO)₂)) and niobium (Nb) with a morphology composed of hexagonal rods, high crystallinity, and a surface area of 94.7 m² g^-1. The extraction process was optimized using a response surface methodology, evaluating three factors: (i) mass of the MOF (100-500 mg), (ii) solut

SUBMITTER: Squizatto EP 

PROVIDER: S-EPMC12409570 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature