Novel Magnetite (Fe 3 O 4)-Methylcellulose Nanocomposites Synthesized Using the Reverse Co-Precipitation Approach.

A simple approach was used to create Fe₃O₄-methylcellulose (MC) nanocomposites, which were then analyzed using XRD, FTIR, and FE-SEM to determine their structure. The effective factors for enhancing the ratio of magnetite NPs in the samples were investigated using RTFM and optical absorbance. Fe₃O₄ was synthesized utilizing the reverse co-precipitation technique and magnetic characteristics. Fe₃O₄/MC nanocomposites with magnetite/MC weight ratios of 0, 0.07, 0.15, and 0.25 have been developed. The diffraction pattern of magnetite is well indexed in accordance with the spinal reference pattern of Fe₃O₄ (space group: R¯3m), as confirmed by the Rietveld analysis of XRD data of magnetite NPs with an average crystallite size of 50 nm. Magnetite's insertion into the MC network causes a red shift in the band gap energy (E_g) as the weight percentage of magnetite nanoparticles in the samples rises. The MC, MC-7, MC-15, and MC-25 samples have E_g values of 5.51, 5.05, 2.84, and 2.20 eV, respectively. [ABSTRACT FROM AUTHOR]