Facile Synthesis and Characterization of Trimetallic CuCrFe‐BTC MOF for the Adsorptive Removal of Diamond Green G: Kinetic, Isotherm, and Thermodynamic Study

作者：Ali Umar, Sultan Alam, Hira Zaman, Muhammad Zahoor, Riaz Ullah, Essam A. Ali, Muhammad Umar · 发表于：Applied Organometallic Chemistry · 年份：2025 · DOI：10.1002/aoc.70189 · 被引用次数：5 · 研究领域：Adsorption and biosorption for pollutant removal、Nanomaterials for catalytic reactions、Mercury impact and mitigation studies

ABSTRACT In this study, trimetallic organic frameworks (CuCrFe‐BTC MOF) was synthesized via the solvothermal method and applied for the adsorptive removal of diamond green G dye from aqueous medium. The synthesized CuCrFe‐BTC MOF was characterized by SEM, FTIR, XRD, TGA, Zeta potential analyzer, and surface area analyzer. The results revealed that the synthesized MOF has spherical particles in the nanoscale range (80 nm), FTIR analysis confirmed the presence of necessary functional groups, XRD indicated high crystallinity with distinct peaks and TGA analysis demonstrated the thermal stability up to 500°C. The moderate negative charge value (−14.7 mV) as predicted by zeta potential analysis suggests its suitability for remediation of cationic pollutants. BET analysis revealed a high surface area of 767 m 2 /g, with a microporous structure. The synthesized MOF were then employed for the removal of diamond green G dye from water using batch adsorption approach. The effect of contact time, adsorbent dosage, pH, initial dye concentration, and temperature on adsorption was also evaluated to optimize the adsorption process. The maximum adsorption was achieved at optimum contact time of 60 min, adsorbent dosage of 0.01 g, pH 8, initial dye concentration of 100 ppm, and temperature 298 K. Different isotherm and kinetic models were applied to the adsorption experimental data. Kinetic data analysis revealed the best fit of the data with pseudo‐second‐order model confirming the chemisorp...