Green Synthesis, Characterization and Application of Proanthocyanidins-Functionalized Fe3O4 Magnetic Nanocomposites

In this study, proanthocyanidins-functionalized Fe 3 O 4 magnetic nanocomposites were synthesized by the hydrothermal method. The prepared Fe 3 O 4 nanocomposites were characterized by Fourier transform infrared spectrometer (FTIR), X-ray powder diffractometer (XRD), physical property measurement system (PPMS), particle size analyzer, scanning electron microscope (SEM), and transmission electron microscope (TEM). FTIR results indicated that the obtained products were coated with proanthocyanidins. The SEM and TEM results, as well as particle size distribution analysis, revealed that the obtained products were spherical particles with average diameter of 3 2 8 . 6 2 ± 2 6 . 7 5 nm. XRD and PPMS characterization confirmed that the Fe 3 O 4 nanoparticles have a cubic spinel structure with magnetic properties. The performance of the Fe 3 O 4 nanocomposites for removing organic dyes in an aqueous solution was investigated. The synthesized products were found to be effective on removing various organic dyes, such as Methylene blue (MB), neutral red (NR) and Rhodamine B (RhB), indicating their considerable potential as efficient dyes adsorbents for wastewater treatment.