Green Synthesis of Fe3O4 Nanoparticles Based on Natural Sand as Methylene Blue Degradation by Electrocoagulation Method

The green synthesis of Fe3O4 nanoparticles based on natural sand as a liquid waste degrader has been conducted. powder was obtained by separating using permanent magnet through the electrocoagulation method with Mn doping and AC composite. 5 variations aimed to induce ferromagnetic properties stabilize MnxFe3-xO4 particles methylene blue degraders, while composite enhance pollutant absorption. Characterization Fourier Transform Infrared X-Ray Diffraction analyzed functional groups, nanostructure, crystal size powder, showing that increasing molarity strengthened group bonds stabilized particle up 8.389 Å. magnetic nanocomposite applied solution model for textile waste. Ultraviolet Visible Light testing revealed decreased light absorbance in surface state region an energy bandgap widening 5.25 eV. larger indicated lower refractive index, indicating clarity resulting liquid. COD BOD supported these findings, samples 0.3M 0.7M showed decrease from 299.82 mg/L 287.27 127.08 115.16 mg/L. characterization results demonstrated MnxFe3-xO4/AC effectively served degrader. It transformed sample colour into clearer reduced levels, complying wastewater quality standard. This research offers environmentally friendly cost-effective efficient