Preparation and characterization of (Ba0.85Ca0.15)(Zr0.1Ti0.9)TiO3(BCZT)/Bi2O3 composites as efficient visible-light-responsive photocatalysts

Abhinay, S.; Tarai, P.; Mazumder, R.

doi:10.1007/s10853-019-04175-3

Cited by 14 publications

(1 citation statement)

References 31 publications

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“…Figure 6 demonstrates that the emission spectra of both the FOD-ore and FOD samples were in the 500-700 nm range. In general, a low PL intensity indicates a low electron-hole pair recombination rate [30,31]. The unique formulation of FOD-ore, which contained the Fe deficiency in the structure of FOD-ore, enhanced charge carrier separation, as evidenced by the lower PL emission intensity of FOD-ore relative to FOD at approximately 600 nm for an excitation wavelength of 350 nm.…”

Section: Examination Of the Charge Separationmentioning

confidence: 99%

Preparation of Iron Oxalate from Iron Ore and Its Application in Photocatalytic Rhodamine B Degradation

et al. 2023

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In this study, iron oxalate dihydrate (FOD-ore) was produced from iron ore by the process using oxalic acid to extract iron, followed by photo-reduction. Several techniques, such as X-ray powder diffraction (XRD), Raman, scanning electron microscopy with energy dispersive X-Ray analysis (SEM-EDX), ultraviolet–visible diffuse reflectance spectroscopy (UV-DRS), photoluminescence spectroscopy (PL), and X-ray photoelectron spectroscopy (XPS), were used to determine the physicochemical properties of the FOD-ore sample. To compare the photocatalytic activity of FOD-ore, commercial hematite (Fe2O3) was used as a precursor to creating iron oxalate (FOD). The FOD-ore was applied to the photocatalytic degradation of rhodamine B (RhB), a model organic pollutant in wastewater. Using the produced FOD-ore, we were able to degrade more than 85% of RhB within 90 min at a rate approximately 1.4 times higher than that with FOD. FOD-ore demonstrated greater light absorption than FOD, resulting in improved RhB degradation performance. Moreover, the enhanced separation and transport of photogenerated electron-hole pairs can be attributed to the increased photocatalytic RhB degradation rate of FOD-ore, confirmed by photoluminescence results. Therefore, FOD-ore can be utilized as a potential photocatalyst in the degradation process for other organic pollutants under light irradiation.

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Section: Examination Of the Charge Separationmentioning

confidence: 99%