Preparation and morphological studies of tin sulfide nanoparticles and use as efficient photocatalysts for the degradation of rhodamine B and phenol by Oluwalana Abimbola E., Ajibade Peter A.

“…The energy bandgap of the SnS nanoparticles obtained from Tauc plots are in the range 3.80–4.37 eV. The as-prepared SnS nanoparticles were used as photocatalysts for the degradation of rhodamine B with efficiency of 90.97, 61.53, and 80.26% for SnS1, SnS2, and SnS3, respectively, while for phenol degradation efficiency was 96.45, 75.13, and 90.69% after 180 min. …”
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Role of triethanolamine complexing agent in chemical bath deposition of tin sulfide thin films: Microstructural and optical properties by Nauman Khan, Athar Javed, Muhammad Bashir, Shazia Bashir

“…Direct optical transition behavior is observed in all films. From Tauc plots, the calculated optical band gap (Eg) varies from 1.79 eV to 1.91 eV with the variation in TEA concentration. …”
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On the Quantum Confinement Effects in Ultrathin PdO Films by Experiment and Theory by Alexandros Barnasas, Christos S. Garoufalis, Dimitrios I. Anyfantis, Panagiotis Poulopoulos, Sotirios Baskoutas

“…The results of an atomic force microscopy study showed that the material possessed a high crystalline quality with a low roughness. When looking at Tauc plots to determine the position of the direct optical band gap, the thicker films show a value that is relatively close to 2.2 eV. …”
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Bandgap Tailoring of ZnO Using Metallic Sulphides for Enhanced Visible-light-active Photocatalytic Water Treatment by Rachel Mugumo, Emmanuel O. Ichipi, Shepherd M. Tichapondwa, Evans M. N. Chirwa

“…Data obtained from the UV-vis DRS results were interpolated to estimate the bandgap energy of each nanocomposite using Tauc plots. The bandgap energy of ZnO was tailored from 3.30 eV to 2.15 eV, 1.91 eV and 1.85 eV for Ag2S/ZnO, FeS/ZnO and NiS/ZnO. …”
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Synthesis, Characterization and Investigation of Optical and Electrical Properties of Polyaniline/Nickel Ferrite Composites by Priyanka Kolhar, Basavaraja Sannakki, Meenakshi Verma, Prabhakar S.V., Mansoor Alshehri, Nehad Ali Shah

“…The optical direct and indirect band gaps were evaluated by plotting Tauc plots and the values of the optical band gap decreased with addition of ferrite in polyaniline and the Urbach energy increased in the samples with 10%, 30% and 50% polyaniline/nickel ferrite composites. …”
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Photocatalytic removal of phenol over mesoporous ZnO/TiO2 composites by Khang, K. C .L., Hatta, M. H. M., Lee, S. L., Yuliati, L.

“…XRD results verified co-existence of both anatase TiO2 and hexagonal wurtzite ZnO in the ZnO/TiO2 composites. Based on the Tauc plots, all the composites showed almost the same band gap energy of approximately 3.21 eV. …”
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Superior sulfate radicals-induced visible-light-driven photodegradation of pharmaceuticals by appropriate ce loading on fibrous silica ceria by Fauzi, A. A., A. Jalil, A., Hitam, C. N. C., A. Aziz, F. F., Chanlek, N.

“…Besides, a detailed energy diagram of CeO2 and FSC-0.1 was proposed based on VB XPS and Tauc plots. This work indicated that the FSC-0.1 coupled with PDS retained its efficiency for five-cycles of reaction without any significant-loss and displayed promising applications for the various pharmaceutical compounds (PCs).…”

Fabrication of Carbon/Zinc Oxide Nanocomposites as Highly Efficient Catalytic Materials for Application in Dye-Sensitized Solar Cells by Hussain Gulab, Nusrat Fatima, Nadia Shahzad, Muhammad Imran Shahzad, Mohsin Siddique, Muhammad Hussain, Muhammad Humayun

“…Optical band gaps of the samples were determined with the help of Tauc plots. Comparison of J-V characteristics showed that the ZnO synthesized via the HT method exhibits the highest conversion efficiency of 1.45%. …”
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1D Narrow-Bandgap Tin Oxide Materials: Systematic High-Resolution TEM and Raman Analysis by Kazuhiro Manseki, Saeid Vafaei, Loren Scott, Katelyn Hampton, Nagisa Hattori, Kosuke Ohira, Kyle Prochotsky, Stephen Jala, Takashi Sugiura

“…Photoabsorption properties associated with the formation of the SnO/SnO₂ nanocomposites were also investigated. Tauc plots indicate that the obtained tin oxide samples had a lower bandgap of 2.9~3.0 eV originating from SnO in addition to a higher bandgap of around 3.5~3.7 eV commonly observed for SnO₂. …”
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Phytomediated-Assisted Preparation of Cerium Oxide Nanoparticles Using Plant Extracts and Assessment of Their Structural and Optical Properties by Nicusor Fifere, Anton Airinei, Florica Doroftei, Tudor Stefan Ardeleanu, Marius Dobromir, Daniel Tîmpu, Elena-Laura Ursu

“…The optical band gap of our cerium nanoparticles was determined to be 3.3 and 3.0 eV from reflectance measurements using the Tauc plots. The nanoparticle sizes evaluated from the Raman band at 464 cm⁻¹ due to the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>F</mi></mrow><mrow><mn>2</mn><mi>g</mi></mrow></msub></mrow></semantics></math></inline-formula> mode of the cubic fluorite structure of cerium oxide are close to those determined from the XRD and STEM data. …”
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Phase-separated polyvinylidene fluoride/ZnO composite microspheres as sunlight-driven photocatalysts by Hayarunnisa Anwar, Maryam Al-Ejji, V. Radhika, Deepalekshmi Ponnamma

“…Band gap analysis and optical characteristics of the nanocomposites are studied using Tauc's plots. The band gap energy of ZnO is determined as 3.47 eV, and the microsphere diameter averages between 0.23 and 0.24 μm. …”
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Band Gap Measurements of Nano-Meter Sized Rutile Thin Films by Nikolaos C. Diamantopoulos, Alexandros Barnasas, Christos. S. Garoufalis, Dimitrios I. Anyfantis, Nikolaos Bouropoulos, Panagiotis Poulopoulos, Sotirios Baskoutas

“…The first intense absorption peak appears at about 4 eV. Tauc plots for the position of the indirect band gap show a “blue shift” with decreasing film thickness. …”
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Facile synthesis of green engineered CuO/Cu2O-C nano heterostructures with the controlled Cu2O content for the photodegradation of crystal violet by Lakshmi Madhuri Peddada, Phyu Phyu Cho, Saarthak Dulgaj, Ratnamala Annapragada, Phani Raja Kanuparthy

“…The synthesized CuO/Cu2O-C NCs were crystalline with a monoclinic phase and an average crystallite size of 32 nm, as confirmed by XRD. Tauc plots were utilized to calculate the band gap energies (2.05 and 1.53 eV). …”
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Roles of TOPO Coordinating Solvent on Prepared Nano-Flower/Star and Nano-Rods Nickel Sulphides for Solar Cells Applications by Mojeed A. Agoro, Edson L. Meyer

“…The extrapolated linear part from the Tauc plots reveals band gap values of 3.12 eV, 2.95 eV, and 2.5 eV, which confirms the three samples as potential materials for solar cell applications. …”
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Physical and optical properties of calcium sulfate ultra-phosphate glass-doped Er2O3 by Aliyu, Aliyu M., Hussin, Rosli, Deraman, Karim, Ahmad, Nor Ezzaty, Danmadami, Amina M., Yamusa, Yamusa Abdullahi

“…Optical bandgap (Eg) were determined using Tauc's plots for direct transitions where Eg (direct) decreases with increase in erbium content. …”

Thermal, dielectric and optical studies on cellulose acetate butyrate-gold nanocomposite films prepared by laser ablation by Khaled A. Elsayed, K.H. Mahmoud, Shamsuddeen A. Haladu, Saminu Musa Magami, Abdullah A. Manda, T.S. Kayed, AbbadAl Baroot, Mohd Yusuf Khan, Emre Cevik, Q.A. Drmosh, A. Elhassan

“…We found a relationship between the nanocomposites' refractive index and the amount (extent of incorporation) of Au in the materials, with laser irradiation time determining the various color constants. Tauc plots reveal a permitted transition with an optical energy gap of 5.1eV for the polymer film and 4.75eV after 10 and 20 min of laser irradiation.…”
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Ultrasonically-assisted synthesis of CeO2 within WS2 interlayers forming type II heterojunction for a VOC photocatalytic oxidation by Esmail Doustkhah, Ramin Hassandoost, Negar Yousef Tizhoosh, Mohamed Esmat, Olga Guselnikova, M. Hussein N. Assadi, Alireza Khataee

“…In addition, Mott-Schottky and the bandgap measurements through Tauc plots demonstrate that the heterojunction in CeO2 and WS2 is type II. …”
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Designing Highly Active S-g-C₃N₄/Te@NiS Ternary Nanocomposites for Antimicrobial Performance, Degradation of Organic Pollutants, and Their Kinetic Study by Maryam Ramzan, Mohsin Javed, Shahid Iqbal, Ahmad Alhujaily, Qaiser Mahmood, Komal Aroosh, Ali Bahadur, Muhammad Abdul Qayyum, Nasser S. Awwad, Hala A. Ibrahium, Murefah Mana Al-Anazy, Eslam B. Elkaeed

“…SEM-EDX images confirmed the flakelike structure and elemental constituents of the fabricated materials. Tauc plots were drawn, to calculate the band gaps of the synthesized samples. …”
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A Facile Synthesis of Bi₂O₃/CoFe₂O₄ Nanocomposite with Improved Synergistic Photocatalytic Potential for Dye Degradation by Abdul Basit Naveed, Fakhira Riaz, Azhar Mahmood, Ammara Shahid, Saman Aqeel

“…The energy gaps of bismuth oxide and cobalt ferrite nanocomposites were computed in the range of 1.58–1.62 eV by Tauc plots. These nanocomposite materials were ascertained for photocatalytic potential to degrade methyl orange organic dye in water. …”
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Phenol–Furfural Resin/Graphite/Ag-Based Electrically Conductive Adhesive Composites from Waste Bagasse with Enhanced Thermo-Electric Properties by Syeda Mahnoor Zehra, Maryam Bibi, Azhar Mahmood, Abraiz Khattak, Muhammad Zeeshan Asad, Syeda Hijab Zehra

“…Electrical conductivity was measured using a four-probe technique, while band gap was calculated via Tauc plots. The results exhibited a significant rise in electrical conductivity of insulating virgin PFR from 2.6 × 10⁻⁴ Scm⁻¹ to 8.2 × 10⁻¹ Scm⁻¹ with a 40 and 20 <i>w</i>/<i>w</i>% blend of Ag and graphite in PFR. …”
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