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<p>Fe<sub>2</sub>O<sub>3</sub>/PMMA nanocomposites were created utilizing the solution casting process. Utilizing XRD, FT-IR, XPS, SEM, and TGA, the produced composite has been characterized. Studies using X-ray diffraction (XRD) show that the produced α- Fe<sub>2</sub>O<sub>3</sub> NPs sample is highly pure, with no additional peaks detected, and the calculated crystallite size is 31.56&#xa0;nm. The occurrence of all diffraction peaks on the Williamson-Hall (W-H) plot indicates an induced strain in the sample. As demonstrated by X-ray diffraction analysis, Fe<sub>2</sub>O<sub>3</sub> NPs have been embedded into the PMMA matrix. Fourier transform infrared spectroscopy indicated interactions between PMMA and Fe<sub>2</sub>O<sub>3</sub> NPs. The SEM image demonstrated the Fe<sub>2</sub>O<sub>3</sub> NPs’ uniform dispersion and aggregation on the PMMA matrix. UV/visible spectra showed that as the Fe<sub>2</sub>O<sub>3</sub> NPs content rose, the nanocomposites’ optical bandgap energies decreased. The direct and indirect energy gap values fell from 5.95&#xa0;eV to 4.35&#xa0;eV and 5.44&#xa0;eV to 4.13&#xa0;eV, respectively. The samples’ dielectric characteristics and ac electrical conductivity were studied at frequencies ranging from 100 to 10<sup>6</sup> Hz. Notably, AC conductivity, dielectric constant, and <i>tanδ</i> were all enhanced by rising Fe<sub>2</sub>O<sub>3</sub> NPs concentrations. Under UVC irradiation, the efficiency of Fe<sub>2</sub>O<sub>3</sub>/PMMA nanocomposites in photocatalytic degradation was assessed. According to the data, the 3.5 wt % Fe<sub>2</sub>O<sub>3</sub> /PMMA nanocomposite is a promising material for industrial wastewater treatment to eliminate hazardous contaminants.</p>

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Optical tunable, electrical, thermal stable, and photocatalytic properties of PMMA/Fe2O3 nanocomposite films

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月1日

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  • F. Gomaa,
  • M. E. Moustapha,
  • M. I. Mohammed

摘要

Fe2O3/PMMA nanocomposites were created utilizing the solution casting process. Utilizing XRD, FT-IR, XPS, SEM, and TGA, the produced composite has been characterized. Studies using X-ray diffraction (XRD) show that the produced α- Fe2O3 NPs sample is highly pure, with no additional peaks detected, and the calculated crystallite size is 31.56 nm. The occurrence of all diffraction peaks on the Williamson-Hall (W-H) plot indicates an induced strain in the sample. As demonstrated by X-ray diffraction analysis, Fe2O3 NPs have been embedded into the PMMA matrix. Fourier transform infrared spectroscopy indicated interactions between PMMA and Fe2O3 NPs. The SEM image demonstrated the Fe2O3 NPs’ uniform dispersion and aggregation on the PMMA matrix. UV/visible spectra showed that as the Fe2O3 NPs content rose, the nanocomposites’ optical bandgap energies decreased. The direct and indirect energy gap values fell from 5.95 eV to 4.35 eV and 5.44 eV to 4.13 eV, respectively. The samples’ dielectric characteristics and ac electrical conductivity were studied at frequencies ranging from 100 to 106 Hz. Notably, AC conductivity, dielectric constant, and tanδ were all enhanced by rising Fe2O3 NPs concentrations. Under UVC irradiation, the efficiency of Fe2O3/PMMA nanocomposites in photocatalytic degradation was assessed. According to the data, the 3.5 wt % Fe2O3 /PMMA nanocomposite is a promising material for industrial wastewater treatment to eliminate hazardous contaminants.