Photocatalytic Degradation of Single and Binary Mixture of Brilliant Green and Rhodamine B Dyes by Zinc Sulfide Quantum Dots by Peter A. Ajibade, Abimbola E. Oluwalana

“…Powder X-ray diffraction patterns confirmed a hexagonal wurtzite crystalline phase of ZnS, while HRTEM images showed particle sizes of about 1–3 nm, and energy band gaps of 3.68 eV (ZnS–<b>1</b>), 3.87 eV (ZnS–<b>2</b>), and 4.16 eV (ZnS–<b>3</b>) were obtained from the Tauc plot for the ZnS nanoparticles. The as-prepared ZnS were used as photocatalysts for the degradation of brilliant green, rhodamine B, and binary dye consisting of a mixture of brilliant green-rhodamine B. …”
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Photocatalytic degradation of methylene blue dye in aqueous solution under UV irradiation using NdMnO3:rGO hybrid nanocomposites as a photocatalyst by Vaishali Misra, Vishal Singh, Ajay Singh, Deepak Kumar, Sanjeev K. Sharma

“…The bandgap of NdMnO3:rGO was determined from Tauc's plot to be 2.20–1.74 eV concerning the rGO concentrations. …”
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Fabrication and Characterization of a Lead-Free Cesium Bismuth Iodide Perovskite through Antisolvent-Assisted Crystallization by Salma Maneno Masawa, Chenxu Zhao, Jing Liu, Jia Xu, Jianxi Yao

“…The absorption results and Tauc plot determination show that the fabricated film has a lower bandgap of 1.80 eV. …”
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Solvothermal synthesis of Bi2S3 nanoparticles and nanorods towards solar cell application by Arumugam, J., Raj, A. Dhayal, Irudayaraj, A. Albert, Thambidurai, Mariyappan

“…The band gap of the prepared samples have been estimated using Tauc plot and this suggests that the prepared Bi2S3 nanostructures may find potential applications in the fabrication of solar cells.…”
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Cobalt sulfide as photoelectrode of photoelectrochemical hydrogen generation from water by Rambey, Mustafid Amna, Khuzaimah Arifin, Lorna Jeffery Minggu, Mohammad Kassim

“…When the temperature was increased from preannealing temperature to 400 and 500 °C, several flakes were destructed and formed spherical-like clusters. The Tauc plot from absorption analysis showed that the samples annealed at 400 and 500 °C produced similar band gaps at ~2.0 eV. …”
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Molecular modelling comparisons, optical and band gap characterisation of 4-sulfocalix[4]arene thin film by Farish Armani Hamidon, Faridah Lisa Supian, Mazlina Mat Darus, Wong, Yeong Yi, Nur Farah Nadia Abd Karim

“…The band gap energy of the thin film was determined to be equal to 4.44 eV through the Tauc-plot method. These results substantiate the integration of CPK models validated using DFT for measuring the size of SC[4] molecules and characterising the thin film’s optical characteristics. …”
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An investigation of the dye-sensitized solar cell performance using graphene-titania (TrGO) photoanode with conventional dye and natural green chlorophyll dye by Siddick, Siti Zubaidah, Lai, Chin Wei, Juan, Joon Ching

“…DSSCs device fabricated using N719 dye showed 9.15 mA cm−2 of photocurrent with 3.95% efficiency whereas DSSCs device using natural chlorophyll green dye exhibited photocurrent density of 3.43 mA cm−2 with 0.67% efficiency. From the Tauc plot, band gap was narrowed from 3.17 eV of TiO2 to 2.78 eV of TrGO considering the graphene extended the absorption range of the film to the visible light region. …”

Fabrication of photocatalyst MgO: CuO composite and enhancement of photocatalytic activity under UV light by Priya, R., Stanly, S., Dhanalekshmi, S.B., Sagadevan, Suresh

“…The corresponding band gap for MgO:CuO composite was calculated using Tauc's plot and was found to be 2.2 eV. The textural and surface morphological feature of the synthesized composites were characterized by High-resolution Scanning Electron Microscopy (HR-SEM) and elemental analysis of Composites was analyzed with the help of Energy Dispersive x-ray analysis (EDX). …”

Synthesis of titanium dioxide nanotubes with different N-Containing Ligands via hydrothermal method by Leong, Cheng Yee, Lo, Ye Shen, Koh, Pei Wen, Lee, Siew Ling

“…The Transmission Electron Microscopy images also showed that the N-containing ligands promoted the formation of nanotubes in the anatase TiO2. Based on the Tauc Plot, the band gap energy of anatase TiO2 was shifted with the addition of methylamine, ethylenediamine and diethylenetriamine. …”
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Optimization and modeling of betamethasone removal from aqueous solutions using a SiO2/g-C3N5@NiFe2O4 nanophotocatalyst by RSM by Neda Bagherlou, Elnaz Ghasemi, Parvin Gharbani, Mirzaagha Babazadeh, Ali Mehrizad

“…The band gap of pure g-C3N5, NiFe2O4, and SiO2/g-C3N5@NiFe2O4 was obtained 2.4 eV, 2.7 eV, and 1.4 eV, respectively using the Tauc plot. The F-value of 909.88 and Lack of Fit F-value of 0.41 confirm the obtained model is significant. …”
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CO₂ to CO Electroreduction, Electrocatalytic H₂ Evolution, and Catalytic Degradation of Organic Dyes Using a Co(II) <i>meso</i>-Tetraarylporphyrin by Mouhieddinne Guergueb, Frédérique Loiseau, Florian Molton, Habib Nasri, Axel Klein

“…The optical band gap <i>E</i>g was calculated to 2.15 eV using the Tauc plot method and a semiconducting character is suggested. …”
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Synthesis of KBiFe2O5 by electrospinning: Structural, optical, and magnetic properties by Guilherme H.F. Melo, Alexandre J. Gualdi, Rosario E.S. Bretas

“…The band gap was measured by spectrophotometry via a Tauc plot, resulting in a value of 1.72 eV. Therefore, KBFO in the form of nanofibers seems to have a high potential as an absorbing material in photovoltaic cells.…”
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The Optical Energy Gap of the Semiconducting Intrinsic Layer for Organic Solar Cell Applications by Aulia Anisa Firdaus, Endhah Purwandari, Retno Asih, Ahmad Sholih, Darminto Darminto

“…Furthermore, from the UV-visible spectroscopy, it was shown that both materials have a high transmittance of more than 95%, which indicates that they have transparent properties. Also, the Tauc plot method gives information about the optical energy gap of coconut shell charcoal (GC) and palmyra sap (a:C) which are 2.67 and 1.83 eV, respectively. …”
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Dye extracted from Bael leaves as a photosensitizer in dye sensitized solar cell by Samah Alhorani, Sarvesh Kumar, Mahaveer Genwa, P L Meena

“…The photosensitizers, photo-absorption, bandgap, and ionic conductivity characteristics of the extracted dye were determined using thin-layer chromatography (TLC), ultraviolet-visible spectroscopy, Tauc plot, and conductivity meter, respectively. Chlorophyll is the main constituent in the extracted dye confirmed by TLC analysis. …”
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Effect of Synthesis Methods on Properties of Copper Oxide Doped Titanium Dioxide Photocatalyst in Dye Photodegradation of Rhodamine B by Cheng Yee Leong, Hao Lin Teh, Man Ching Chen, Siew Ling Lee

“…Besides, diffuse reflectance UV-visible analysis proved that the synthesized samples were active under visible light region. According to the Tauc plot and photoluminescence spectra, the band gap energies and recombination rate of electron-hole pairs of Cu-TiO2 samples decreased upon loading of Cu. …”
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Antibacterial and sunlight-driven photocatalytic activity of graphene oxide conjugated CeO2 nanoparticles by Fauzia, Mo Ahamad Khan, Mohd Chaman, Ameer Azam

“…The optical band gap of each sample was calculated by using a Tauc plot, which was observed to decrease from 2.8 to 1.68 eV. …”
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Annealing temperature effect on optical properties of cadmium telluride thin films by Lida BabazadehHabashi, Monir Kamalian, Maryam Gholizadeh Arashti, Ebrahim Hasani

“…The optical energy bandgap of the grown films has a decrement process from 1.519 eV after annealing. The results of the Tauc plot show the decrease in energy bandgap with annealing. …”
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Properties of N-Type GaN Thin Film with Si-Ti Codoping on a Glass Substrate by Wei-Sheng Liu, Yu-Lin Chang, Chun-Yuan Tan, Cheng-Ting Tsai, Hsing-Chun Kuo

“…The Burstein–Moss effect was observed in the Tauc plot results, indicating that the Fermi level inside the conduction band moves upward and thus improves the n-type properties of the GaN thin film. …”
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Investigation of optical, electrical and magnetic properties of hematite α-Fe2O3 nanoparticles via sol-gel and co-precipitation method by Muhammad Tahir, M. Fakhar-e-Alam, M. Atif, Ghulam Mustafa, Zulfiqar Ali

“…The optical band gap energy measured 2.4–2.6 eV, calculated by the Tauc plot with the optical absorption data. The electrical characteristics of the samples were examined by using two probe methods and the possible impact of temperature on the electrical properties of α-Fe2O3 was investigated. …”
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Cube-shaped Cobalt-doped zinc oxide nanoparticles with increased visible-light-driven photocatalytic activity achieved by green co-precipitation synthesis by Asmaa I. Meky, Mohamed A. Hassaan, Howida A. Fetouh, Amel M. Ismail, Ahmed El Nemr

“…XRD results suggested that the average size of these NPs ranged between 42.82 and 46.02 nm with a hexagonal wurtzite structure. Tauc plot shows that the optical energy bandgap of ZnO NPs (3.19 eV) gradually decreases to 2.92 eV by Co doping. …”
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