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141
Visible-Light Driven Photocatalytic Degradation of 4-Chlorophenol Using Graphitic Carbon Nitride-Based Nanocomposites
Published 2022-03-01“…The band gaps of the photocatalysts were estimated using the UV-Vis DRS characterization results and Tauc plots. The evaluation of the efficacy of the GCN-based catalysts in degrading 4-CP was conducted with different photoreactors such as a royal blue light-emitting diode (LED), a UV-A LED, LUZCHEM cool white lamps, and a solar simulator. …”
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142
Rare earth ions (La3+, Nd3+) substituted cobalt–strontium spinel ferrites for photocatalytic degradation of textile dyes
Published 2023-08-01“…The optical band gap values of synthesized spinel ferrites were examined with the help of Tauc plots by using UV-visible absorption. It was determined that the energy bandgap ranged from 2.91 to 2.52 eV. …”
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143
Direct Hydrothermally Synthesized Novel Z-Scheme Dy<sup>3+</sup> Doped ZnO/SnS Nanocomposite for Rapid Photocatalytic Degradation of Organic Contaminants
Published 2023-09-01“…The XPS spectra confirmed the Zn<sup>2+</sup>, Sn<sup>2+</sup>, S<sup>2−</sup>, O<sup>2−</sup> and Dy<sup>3+</sup> oxidation states of the constituent elements along with carbon and nitrogen peaks. The Tauc plots showed a decreasing trend in the optical bandgap, i.e., a redshift due to the loading of Dy<sup>3+</sup> ions into Sn<sup>2+</sup> ions. …”
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144
In-Situ Functionalization of Cotton Fabric by TiO<sub>2</sub>: The Influence of Application Routes
Published 2022-10-01“…The treated cotton fabric samples were characterized using scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDS), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction spectroscopy (XRD) to determine their surface morphology, chemical composition, and crystal structure, while the optical properties of the synthesized TiO<sub>2</sub> were determined using the absorption method and Tauc plotting. Afterwards, corresponding UV protection properties and photocatalytic self-cleaning activity were evaluated. …”
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145
Visible light-driven dye degradation by magnetic cobalt-doped zinc oxide/iron oxide photocatalyst
Published 2024-01-01“…Characterization tools such as the scanning electron microscope (SEM), energy dispersive X-ray analysis (EDX), attenuated total reflectance – Fourier-transform infrared spectroscopy (ATR-FTIR), and X-ray diffraction analysis (XRD) were utilized to evaluate the effect of cobalt doping on the physicochemical properties of the developed photocatalyst. Tauc plots indicated that 5 mol % Co–ZnO (Co5–ZnO) had the smallest band gap energy (2.79 eV), resulting in the highest photodegradation of methylene blue (88.72 %), compared to pristine ZnO (74.88 %) with a band gap energy of 3.39 eV. …”
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146
Synthesis, Phase Transition, and Optical Studies of Ba<sub>2−x</sub>Sr<sub>x</sub>ZnWO<sub>6</sub> (x = 1.00, 1.25, 1.50, 1.75, 2.00) Tungsten Double Perovskite Oxides
Published 2020-04-01“…The band gap energy was investigated in two ways—using the absorption cutoff and Tauc plots—which increased from 3.52 to 3.7 eV with increasing substitution of Ba<sup>2+</sup> by Sr<sup>2+</sup>. …”
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147
Optical Characterization of Cesium Lead Bromide Perovskites
Published 2019-05-01“…All the crystals show an absorption edge around 530 nm; Tauc plots of the absorption returned bandgaps ranging from 2.29 to 2.35 eV characteristic of CsPbBr<sub>3</sub> phase. …”
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148
A comprehensive study on Co-doped CdS nanostructured films fit for optoelectronic applications
Published 2022-11-01“…. % Co: CdS films, respectively using Tauc's plots. The values of extinction coefficient (k) and refractive index (n) were observed in the range of 0.45–0.69 and 2.72–3.05 for as-prepared thin films. …”
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149
Structural, optical and gamma radiation shielding properties of Bi₂O3/BaO-B₂O₃-TeO₂ doped CeO₂ glass system
Published 2018“…The optical band gap energy, Eg,indirect which was calculated from Tauc’ plots decreases from 3.08 to 2.78 eV and 3.49 to 3.23 with the increased amount of Bi2O3 and BaO, respectively. …”
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