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  1. 501

    Experimental-simulation analysis on mechanical degradation and energy evolution characteristics of sandstone under water-rock coupling effects by Yu Yongjiang, Guo Wenjing, Liu Jiaming, Wu Zhiqiang, Dong Xu

    Published 2025-05-01
    “…To address the existing research gap in analyzing energy evolution mechanisms of water-saturated rock masses from a macroscopic perspective and the lack of exploration into energy mechanisms at critical failure points at the mesoscale, this study employs the particle discrete element software PFC3D to establish numerical models of sandstone with varying water contents. …”
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  2. 502

    The effectiveness of RIPAT approach in influencing smallholder farmers’ agroecological transition in Ruangwa District, Tanzania by Nickson J. Ringo, John F. Kessy, Emmanuel T. Malisa

    Published 2024-12-01
    “…Extension services are crucial for diffusing agroecological knowledge, facilitating the adoption of agroecological techniques. …”
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  3. 503

    Eco-friendly fabrication of copper oxide nanoparticles using peel extract of Citrus aurantium for the efficient degradation of methylene blue dye by Alaa I. Khedr, Mohamed H. H. Ali

    Published 2024-11-01
    “…DRS analysis determines band gap energy (Eg) of 1.7 eV for CuO and 1.6 eV for CuO-OP. …”
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  4. 504

    Synthesis and Characterization of a Novel Sol–Gel-Derived Ni-Doped TiO<sub>2</sub> Photocatalyst for Rapid Visible Light-Driven Mineralization of Paracetamol by Nicola Morante, Katia Monzillo, Vincenzo Vaiano, Zukhra C. Kadirova, Diana Sannino

    Published 2025-03-01
    “…The catalysts were characterized through Raman spectroscopy, UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS), and surface area measurements. …”
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    Article
  5. 505

    Functionalized recycled polyethylene terephthalate plastic by rare earth oxide for electronic device and housing infrastructure applications by Amr Antar, Medhat A. Ibrahim, M. M. Maghawry, Nasser Ayoub, Ahmed I. Ali, Dongwhi Choi, Jong Yeog Son, Galal H. Ramzy

    Published 2025-03-01
    “…Optical analysis using diffuse reflectance UV–Vis spectroscopy showed a reduction in the band gap from 3.75 eV for pure RPET to 2.25 eV in 8wt.% doped samples, indicating enhanced optical properties. …”
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  6. 506
  7. 507

    Visible-light-driven photocatalytic synthesis of methyl oleate using TiO₂/Fe₂O₃ with process optimization and scale-up: A path toward a drop-in sustainable fuel approach by S. Chandhinipriya, J. Ranjitha

    Published 2025-07-01
    “…The synthesized TiO2/Fe2O3 (TF) nanocomposites were characterized using various analytical techniques, including DRS, XRD, FE-SEM-EDAX, TEM, and XPS. Diffuse reflectance spectroscopy (DRS) revealed that TiO2/Fe2O3 exhibits good photocatalytic properties, with a band gap of 2.2 eV, driven by visible light, thereby supporting a visible-light-driven photocatalytic reaction. …”
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  8. 508

    Interfacial coupling heterostructure between transition metal oxide and calcium oxide with excellent sunlight-driven photocatalytic activity by Thanit Tangcharoen

    Published 2025-01-01
    “…These photocatalysts present a narrowed band gap and enhanced ratio of surface to volume, and these factors, along with the heterostructure formation of the modified photocatalysts can lead to better photocatalytic performance. …”
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    Article
  9. 509

    Two decades of nutrient dynamics in Polish rivers: Long-term trends in nitrogen and phosphorus by Paweł Marcinkowski, Ignacy Kardel, Marek Giełczewski, Mikołaj Piniewski

    Published 2025-09-01
    “…Comparisons with trends reported in Northern and Central-Eastern Europe reveal similar trajectories, highlighting common successes in phosphorus management and persistent challenges in controlling diffuse nitrogen pollution. This study addresses a significant knowledge gap regarding the dynamics of nutrient concentrations in Polish rivers, offering valuable insights for the development of more targeted and effective nutrient management policies.…”
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  10. 510

    Comparison of Photocatalytic Activity: Impact of Hydrophilic Properties on TiO<sub>2</sub> and ZrO<sub>2</sub> Thin Films by Yuliana de Jesús Acosta-Silva, Misael Ian Lugo-Arredondo, Salvador Gallardo-Hernández, Juan Fernando Garcia-Trejo, Yasuhiro Matsumoto, Sandra Rivas, Ana Angélica Feregrino-Pérez, Luis A. Godínez, Arturo Méndez-López

    Published 2024-12-01
    “…The X-ray diffraction patterns showed that the TiO<sub>2</sub> TFs had an anatase crystalline structure, unlike the ZrO<sub>2</sub> TFs, which showed a tetragonal crystalline structure that was verified by Raman spectroscopy. The band gap (BG) energies, as calculated from UV-Vis spectroscopy and diffuse reflectance spectroscopy, corresponded to 3.2 and 3.7 eV for the TiO<sub>2</sub> and ZrO<sub>2</sub> TFs, respectively. …”
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  11. 511

    Towards high-performance dye-sensitized solar cells by utilizing reduced graphene oxide-based composites as potential alternatives to conventional electrodes: A review by Edigar Muchuweni, Edwin T. Mombeshora, Cosmas M. Muiva, T. Stephen Sathiaraj, Abdullah Yildiz, Diego Pugliese

    Published 2025-01-01
    “…Dye-sensitized solar cells (DSSCs) have recently emerged as one of the most promising new-generation photovoltaic devices due to their facile fabrication protocols, capacity to operate under diffuse light, and low-impact on the environment. …”
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  12. 512
  13. 513

    Highly Efficient Photocatalytic Hydrogen on CoS/TiO2 Photocatalysts from Aqueous Methanol Solution by Yu Niu, Fuying Li, Kai Yang, Qiyou Wu, Peijing Xu, Renzhang Wang

    Published 2018-01-01
    “…Among the photocatalysts with various compositions, the 20 wt% CoS/TiO2 sample with a 2.1 eV band gap showed the maximum photocatalytic activity for the photocatalytic reaction, which indicated that CoS improved the separation ratio of photoexcited electrons and holes. …”
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  14. 514

    The optimal treatment of invasive ductal and lobular carcinoma occurring at the same time needs to be established by Supriya Peshin, Rafi Iftekher, Rabia Iqbal, Shagun Singh, Moka Nagaishwarya

    Published 2025-01-01
    “…The case highlights the need for further research into the optimal treatment strategies for synchronous breast cancers, a potential knowledge gap in current oncology practice. A literature review revealed limited reports addressing similar cases, underscoring the lack of consensus guidelines. …”
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  15. 515

    Multifunctional hybrid films made from CoT3OTx4 and CoFeT2OT4 nanoparticles inside a poly 3-hydroxybutyrate matrix and study of their impact in methyl orange photodegradation. by Lan J Bernal-Sánchez, América R Vázquez-Olmos, Roberto Y Sato-Berrú, Esther Mata-Zamora, Margarita Rivera, Vicente Garibay-Febles

    Published 2024-01-01
    “…Different spectroscopic and microscopy techniques characterized the Co3O4 and CoFe2O4 NPs and the P3HB, Co3O4@P3HB and CoFe2O4@P3HB films. The optical band gap for Co3O4 and CoFe2O4 NPs was estimated from their diffuse reflectance spectra (DRS) around 2.5 eV. …”
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  16. 516

    Green Synthesis by Microwave Irradiation of TiO2 Using Cinnamomum verum and the Application in Photocatalysis by Dante E. González-Anota, Silvia P. Paredes-Carrera, Rosa M. Pérez-Gutierrez, Brandon Arciniega-Caballero, Raul Borja-Urby, Jesús C. Sánchez-Ochoa, Elizabeth Rojas-García

    Published 2023-01-01
    “…The following techniques characterized the materials: X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, UV-vis diffuse reflectance, Raman spectrometry, and high-resolution transmission electron microscopy (HRTEM). …”
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  17. 517

    Degradation of bisphenol A using a MOF@COF-modified polyacrylonitrile ultrafiltration membrane by Chloe G Hahn, Soraya P Malinga, Thollwana A Makhetha

    Published 2025-08-01
    “…The composite was successfully synthesised using solvothermal synthesis and structurally analysed via XRD and FTIR, confirming crystal structure and covalent bonding between MIL-101-NH₂ and TpMA via the adsorption bands detected at 765 and 1247-1257 cm−1 (N-H wagging band and C-N stretching bands). UV–vis diffuse reflectance analysis revealed a narrowed band gap upon hybridisation (0.92 eV) signifying enhanced photocatalytic activity, while photoluminescence spectra indicated reduced electron–hole recombination. …”
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  18. 518

    Improved photocatalytic performance of Ce substituted lanthanum ferrite nanoparticles for the degradation of harmful antibiotic tetracycline from water by S. Adline Benila, V. Anslin Ferby, P. Sakthivel

    Published 2025-06-01
    “…The samples were identified as visible-light-driven photocatalysts, with the reduction of optical band gap from 2.24 to 1.88 eV with increasing Ce concentration. …”
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  19. 519

    Magnetically separable ternary CdFe2O4/Fe2O3/CeO2 nanocomposites for visible-light photodegradation of eosin Y by Maryam Rezaei, Hanieh Ansarinejad, Ahmad Akbari, Forat H. Alsultany, Hadil Hussain Hamza, Masoud Salavati-Niasari

    Published 2025-09-01
    “…Based on DRS analysis, the band gap of the three-component CdFe2O4/Fe2O3/CeO2 nanocomposite was obtained to be 2.0 eV, indicating that CdFe2O4/Fe2O3/CeO2 nanostructure can act as a photocatalyst under visible light. …”
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    Article
  20. 520