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  1. 481

    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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  2. 482

    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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    Article
  3. 483

    Structural, magnetic, and optical characteristics of undoped and chromium, iron, cobalt, copper, and zinc doped nickel oxide nanopowders by Farzaneh Asaldoust, Khosro Mabhouti, Akbar Jafari, Maryam Taleb-Abbasi

    Published 2025-01-01
    “…Band gap values were estimated based on diffuse reflectance spectroscopy data through Tauc plot analysis, yielding a range from 2.77 to 3.46 eV. …”
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    Article
  4. 484

    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
  5. 485

    Divulgação Científica em Prol da Luta Ambiental no Brasil by Luciano Victor Barros Maluly, Daniel Azevedo Muñoz, Carla de Oliveira Tôzo, Andreia Terzariol Couto

    Published 2024-12-01
    “…Cet article s’intéresse au rôle du journalisme scientifique dans la diffusion de sujets environnementaux et à l’importance du journaliste en tant que communicateur scientifique. …”
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    Article
  6. 486

    Impregnation of porous TiO2/ZnO into MCM-41 synthesized from coal fly ash for enhanced photocatalytic activity of TiO2/ZnO@MCM-41 composites in methylene blue removal by Ardi Lukman Hakim, Inzus Etika Sari, Bunga Jasmine Nur Sabrina, Zanna Allia Nurkhalizah, Ecce Kamila Ajeng Zahabiya, Aditya Nur Hidayat, Dety Oktavia Sulistiono, R. Nida Sopiah, Yuly Kusumawati, Ratna Ediati

    Published 2025-06-01
    “…Characterization confirmed the hexagonal mesoporous structure, uniform dispersion of TiO2/ZnO, and enhanced light absorption. Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV–Vis DRS) results revealed a band gap reduction from 3.22 eV (TZ) to 2.77 eV (TZM), improving photocatalytic activity under UV and visible light irradiation. …”
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    Article
  7. 487

    Tunable properties of silver (Ag) substituted BaFe2O4 nanoparticles for photovoltaic (PV) applications by Irum Shahid Khan, Iftikhar Hussain Gul

    Published 2025-05-01
    “…The lowest energy band gap value of 1.5–1.8 eV was achieved by pristine and Ba0.7Ag0.3Fe2O4 making it eligible to operate within the ideal region of solar cell efficiency with reduced recombination losses. …”
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    Article
  8. 488

    Ion toxicity in waterlogged soils: mechanisms of root response and adaptive strategies by Lin Zhang, Yan Li, Yanqin Wang, Zhaohui Liu, Herbert J. Kronzucker, Zhaoyue Wang, Weiming Shi, Weiming Shi, Guangjie Li

    Published 2025-08-01
    “…Despite progress, key gaps remain: identifying ion sensors in root tips, extrapolating findings to long-lived species, modeling multi-ion interactions under dynamic waterlogging conditions, and establishing real-time root signal monitoring systems. …”
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    Article
  9. 489

    Ball milling preparation and the effect of calcination temperature on the photocatalytic performance of titanium dioxide by Israa Zahwa, Ahmad Kassas, Mohamed Mouyane, Jérôme Bernard, Javier Navas, Tayssir Hamieh, David Houivet

    Published 2025-06-01
    “…Characterization techniques, including X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area analysis, thermogravimetric analysis (TGA), and UV–Vis spectroscopy using the diffuse reflectance mode (DRS), were employed to evaluate phase composition, surface properties, and optical band gap variations. …”
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  10. 490

    Comparative analysis of the diagnostyc value of CT and MRI in the assessment of peritoneal carcinomatosis in ovarian cancer by Yu. A. Soloveva, N. A. Rubtsova, E. G. Novikova, D. O. Kabanov, S. A. Skugarev

    Published 2025-03-01
    “…This approach makes it possible to perform a full-fledged mapping of the abdominal cavity with the calculation of the peritoneal carcinomatosis index (PCI), potentially avoiding "mute zones" resulting from technical gaps that can be observed when performing MRI in two separate blocks, according to the nomenclature of studies on anatomical areas (MRI of the abdominal cavity and pelvis).…”
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  11. 491

    Preparation and First-principles Study of New Thorium-based MOX Fuel by ZHAO Shi1, 2, , WEI Qianglin1, 2, 3, , LIU Yibao1, 2, LIU Haojie2, LI Kaixuan2

    Published 2024-10-01
    “…This leads to an expansion of gaps between particles, an increase in the number of pores, and ultimately a reduction in density. …”
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  12. 492
  13. 493

    Performance of Domestically Made Surface Solar Radiation Observation System at Zhongshan Station, Antarctica by Zheng Xiangdong, Zhao Yong

    Published 2023-05-01
    “…However, the performance of instrumental systems is not sufficiently evaluated or analyzed, especially in the polar regions where harsh condition and large seasonal variations of solar elevation causes dramatic variation of surface solar irradiance. To fill this gap, the performance of the domestically made solar radiation observation systems at Zhongshan Station, Antarctica in 2017, including global solar radiation (GSR), direct solar radiation (DIR) and the diffuse solar radiation (DIF) measurements, is evaluated. …”
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  14. 494
  15. 495

    Citrus sinensis and Musa acuminata Peel Waste Extract Mediated Synthesis of TiO2/rGO Nanocomposites for Photocatalytic Degradation of Methylene Blue under Visible Light Irradiation by Mulugeta Hirko Olana, Fedlu Kedir Sabir, Eneyew Tilahun Bekele, Bedasa Abdisa Gonfa

    Published 2022-01-01
    “…The average crystalline size of CS and MA peel extract template synthesized TiO2/rGO NCs was found to be in the range of 7.5–15.3 and 11.2–12.5 nm, respectively. The band gap energy was calculated to be in the range of 3.17–3.29 eV and 3.10–3.38 eV for the CS and MA mediated synthesized TiO2 NPs, respectively. …”
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  16. 496

    Evolution of phase composition and luminescent characteristics of the La1-x-ySmxCayVO4-δ nanocrystalline phosphor by S.G. Nedilko, O. Chukova, A. Dorofieieva, S.A. Nedilko, V. Shcherbatskyi, T. Voitenko, M. Etter, H.S. Rahimi Mosafer, W. Paszkowicz, Y. Zhydachevskyy, A. Suchocki

    Published 2025-02-01
    “…Estimated from the diffuse reflection data the band gap values are 3.85, and 3.82, 3.75, 3.78 eV for the samples with x = 0.1, y = 0, and (x, y) = 0.05, 0.10, 0.15, respectively. …”
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  17. 497

    Synthesis O-g-C<sub>3</sub>N<sub>4</sub>/TiO<sub>2</sub> rutile composite material for photocatalytic application by M. E. Bondarenko, P. M. Silenko, Yu. M. Solonin, N. I. Gubareni, O. Yu. Khyzhun, N. Yu. Ostapovskaya

    Published 2019-11-01
    “…As a result, O-g-C3N4/TiO2 photosensitivity is observed in the significant part of the visible region and the band gap of synthesized product is determined to be less than 2.4 eV versus 2.7 eV for undoped g-C3N4 or g-C3N4/TiO2. …”
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  18. 498

    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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  19. 499

    Influence of the phase composition of the TiO<sub>2</sub> matrix on the optical properties and morphology of deposited C<sub>3</sub>N<sub>4</sub>O<sub>x</sub> nanoparticles by M. E. Bondarenko, P. M. Silenko, Yu. M. Solonin, A. V. Ragulya, M. M. Zahornyi, V. V. Shvalagin, N. I. Gubareni, O. Yu. Khyzhun

    Published 2020-11-01
    “…Using UV/Vis spectroscopy, it has been found that a redshift of long-wavelength edge of the fundamental absorption band of the spectra is observed when going from TiO2 (anatase), TiO2 (rutile), C3N4, C3N4Ox/TiO2 (anatase), C3N4Ox/TiO2 (rutile) and, then, to C3N4Ox, and the band gap decreases from 3.2, 3.0, 2.6, 2.4, 2.25 to 2.1 eV in the above sequence of materials. …”
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  20. 500