Synthesis of Fe₃O₄@MIL-100(Fe) nanocatalyst and comparative evaluation of photocatalytic behavior of Fe₃O₄ and core-shell structure of catalyst on methylene blue degradation

Abstract

In this study, the first magnetite nanoparticles (Fe₃O₄), and MIL-100(Fe) nanocatalyst via in situ two-step hydrothermal strategies were synthesized in which Fe₃O₄ is known as the magnetic core. MIL-100 (Fe) grows as a shell at the Fe₃O₄ level and adjusts the shell thickness by precisely controlling the reaction time from 37.10 to 45.95 nm. The structural, morphological, magnetically, optical, and chemical bonding studies; XRD, FESEM, TEM, VSM, UV-Vis, and FTIR measurements were carried out. The results of the above analyses demonstrated core-shell structure is formed. The catalyst synthesized in the degradation of methylene blue was investigated as a heavy organic compound.

Keywords:

• core-shell
• Fe₃O₄@MIL-100(Fe)
• methylene blue
• photocatalytic
• hydrothermal strategies