02077nas a2200205   4500008004100000022001400041245012400055210006900179260000800248300001400256490000700270520135800277100001701635700001801652700001801670700002001688700001801708700002001726856012501746       2024                        eng d  a0022-246100aVisible light-assisted ferro-photocatalytic application of bismuth ferrite nanoparticles synthesized at low temperature0 aVisible lightassisted ferrophotocatalytic application of bismuth  cJAN  a1513-15250 v593 a<p>
	Polycrystalline nano-sized multiferroic bismuth ferrite was prepared by facile sole-gel method using acetic acid as a chelating agent followed by calcination at 450, 500, and 600 degrees C. Transmission electron spectroscopy and X-ray diffraction patterns revealed the crystallinity in the samples, and the crystallite size increased with calcination temperature. The calcination temperature also greatly influenced the grain size of the materials, and high calcination temperature induces a decline in the total surface area per unit mass of material. The ferroelectric polarization measurement showed a decrease in remnant polarization from 0.18 to 0.09 mu C/cm2 with an increase in temperature. The remnant polarization induced delayed recombination of charge carriers upon light illumination, and the high surface area led to the highest photocatalytic activity in 450 degrees C calcined samples. The higher photocurrent density in low-temperature calcined samples supports the visible-light photodegradation studies of Congo Red (CR) dye. A maximum of 76.6% photocatalytic activity was observed in the 450 celcius calcined bismuth ferrite samples. In summary, the higher photocatalytic efficiency in the low-temperature samples is attributable to the synergistic effect of relatively higher remnant polarization and higher surface area.</p>
1 aSarraf, Sonu1 aKaushal, Neha1 aChugh, Vibhas1 aSundar, Adhiraj1 aSaha, Avishek1 aBasu, Aviru, K.  uhttps://library.ncl.res.in/content/visible-light-assisted-ferro-photocatalytic-application-bismuth-ferrite-nanoparticles