<p>In the present report, aurivillius phase Bi<sub>5</sub>FeTi<sub>3</sub>O<sub>15</sub> (BFTO) nanoparticles with enhanced charge separation, attributed to their ferroelectric properties, have been successfully synthesized through a sol-gel method, and subsequently investigated their photocatalytic activity. Various analytical techniques, including X-ray diffraction(XRD), Raman Spectroscopy, Scanning electron microscopy (SEM), Energy Dispersive X-ray analysis (EDS), Fourier transform infrared spectroscopy (FTIR), Energy Dispersive X-Ray Fluorescence (EDXRF) and UV-Vis spectroscopy have been employed to investigate the structural features, surface morphology, and optical properties of the as-prepared samples. The XRD and subsequent Rietveld refinement confirmed that the BFTO nanoparticles exhibit a single-phase orthorhombic structure with the space group A21am. Furthermore, EDXRF and EDS confirm the formation of BFTO, UV-Vis spectra confirmed the occurrence of a direct band gap in the BFTO nanoparticles with a band gap energy of ~ 2.7&#xa0;eV. Under an applied voltage of 8000&#xa0;V, the remanent polarization (Pr) and coercive field have been evaluated as ~ 53.88 µC/cm² and 256.034&#xa0;kV/cm, respectively. In addition, the degradation of Methyl Orange (MO) in an aqueous solution under visible light has been carried out to assess the photocatalytic activity of the as-synthesised BFTO nanoparticles. After nearly 3&#xa0;h in white light irradiation, a notable rise in MO deterioration has been noted. Because of their high effectiveness in breaking down MO dye, BFTO nanoparticles show a lot of promise as a photocatalyst for the breakdown of hazardous &amp; vulnerable compounds and other organic pollutants when exposed to visible light.</p>

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A Facile Synthesis of Nano-Phasic Bi5FeTi3O15 Layered Photoferroelectrics for Photocatalytic Application Induced With Visible Light

  • Srishti Rai,
  • P. K. Bajpai,
  • Amit Srivsatava,
  • Rakesh Kumar Singh,
  • Jai Singh

摘要

In the present report, aurivillius phase Bi5FeTi3O15 (BFTO) nanoparticles with enhanced charge separation, attributed to their ferroelectric properties, have been successfully synthesized through a sol-gel method, and subsequently investigated their photocatalytic activity. Various analytical techniques, including X-ray diffraction(XRD), Raman Spectroscopy, Scanning electron microscopy (SEM), Energy Dispersive X-ray analysis (EDS), Fourier transform infrared spectroscopy (FTIR), Energy Dispersive X-Ray Fluorescence (EDXRF) and UV-Vis spectroscopy have been employed to investigate the structural features, surface morphology, and optical properties of the as-prepared samples. The XRD and subsequent Rietveld refinement confirmed that the BFTO nanoparticles exhibit a single-phase orthorhombic structure with the space group A21am. Furthermore, EDXRF and EDS confirm the formation of BFTO, UV-Vis spectra confirmed the occurrence of a direct band gap in the BFTO nanoparticles with a band gap energy of ~ 2.7 eV. Under an applied voltage of 8000 V, the remanent polarization (Pr) and coercive field have been evaluated as ~ 53.88 µC/cm² and 256.034 kV/cm, respectively. In addition, the degradation of Methyl Orange (MO) in an aqueous solution under visible light has been carried out to assess the photocatalytic activity of the as-synthesised BFTO nanoparticles. After nearly 3 h in white light irradiation, a notable rise in MO deterioration has been noted. Because of their high effectiveness in breaking down MO dye, BFTO nanoparticles show a lot of promise as a photocatalyst for the breakdown of hazardous & vulnerable compounds and other organic pollutants when exposed to visible light.