A Study on the Novel Use of Metal‐organic Frameworks (MOFs) as a Nanocomposite of MIL‐88A(Fe) for the Photocatalytic Degradation of Azo Dyes From Aqueous Solutions: Synthesis and Characterization

Abstract In this research, a new metal‐organic framework (MOF) nanocomposite was synthesized using the hydrothermal method. The main objective is to create a photocatalytic nanocomposite based on Materials Institute Lavoisier (MIL) for degrading Direct Red 23 (DR23) and Direct Red 28 (DR28) dyes using visible LED light. This catalyst was reported as MIL‐88A(Fe). The study also examined the impact of various operating variables, such as initial dye concentration, catalyst dosage, and solution pH, on the performance of the synthesized materials. Results showed that pollutant degradation increased with higher catalyst dosages but decreased with increasing initial pollutant concentrations. One of the main objectives is to enhance the photocatalytic efficiency of MIL‐88A(Fe) for the degradation of azo dyes. This will simplify and optimize the synthesis conditions, as well as improve the understanding of the degradation mechanisms, stability evaluation, and reusability. The characteristics of the synthesized photocatalysts were analyzed using XRD, SEM, EDX, FT‐IR, and Raman techniques. XRD, SEM, and FT‐IR analyses confirmed the successful synthesis of the MIL‐88A(Fe) nanocomposite. The degradation of DR23 and DR28 dyes on the catalysts followed first‐order kinetics, supported by appropriate rate models. The data suggested that MIL‐88A(Fe) could effectively serve as a photocatalyst for pollutant degradation.