Tailored pc@zro₂@cellulose fiber composites as versatile materials for photocatalytic metal ion reduction and microbial deactivation by Reem. Mohammed, Shimaa M. Abdel-Moniem, Nabila S. Ammar, Mohamed A. El-Liethy, Hanan S. Ibrahim, Mohamed Eid M. Ali

“…The composite materials were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), N2 adsorption/desorption isotherms, and diffuse reflectance spectroscopy (DRS). The results revealed successful integration of the PCs with the ZrO2-cellulose matrix, facilitating efficient charge transfer and enhanced photocatalytic performance. …”
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Fe-TiO2 Nanoparticles Synthesized by Green Chemistry for Potential Application in Waste Water Photocatalytic Treatment by Ricardo A. Solano, Adriana P. Herrera, David Maestre, Ana Cremades

“…The cathodoluminescence (CL) and photoluminescence (PL) studies of the doped and undoped nanoparticles show a luminescence signal attributed to surface oxygen vacancies (visible CL emission 380–700 nm and PL emission 350–800 nm); additionally, a decrease in emission intensity is observed due the inhibition of the recombination of the photogenerated electron-holes pairs; moreover, nanopowders were analyzed by UV-Vis spectrophotometry of diffuse reflectance, and the absorption edge of the Fe-TiO2 in comparison to undoped TiO2 is extended greatly toward the visible light. …”
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Surface and quantum chemical parameters of nickel oxide nanostructures suited for ultraviolet-assisted cationic dye degradation by G. Rathika, R. Jagadeeswari, T. Sathiyapriya, P. Selvakumar

“…Fourier transform infrared spectroscopy and energy dispersive X-ray were employed to analyze the functional group and elemental composition of NiO NPs. The ultraviolet diffuse reflectance spectra indicated an optical band gap of 3.08 eV for synthesized NiO nanoparticles. …”
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Synthesis of Zinc Oxide-based nanocomposites for photocatalytic removal of contaminant by Maryam Tondkar Mobaraki, Hassan Zavvar Mousavi, Hadi Fallah Moafi, Mohammad Moghadam

“…The samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), Fourier transform infrared spectroscopy (FT-IR), and diffuse reflectance spectroscopy (DRS). The XRD results revealed that zinc oxide and graphite carbon nitride have a hexagonal wurtzite structure and a hexagonal structure, respectively. …”
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Towards controlling the morphology of cobalt loaded nanocomposites in polyol process with polyethylene glycol by Anastasia Burmatova, Artur Khannanov, Liana Zubaidullina, Dmitry Emelianov, Olga Mostovaya, Ivan Stoikov, Nikolay Ulakhovich, Marianna Kutyreva

“…The PEG-based polyol process and the formation of cobalt nanophase were studied at molar ratios νCo2+/νOH(PEG) = 1:1, 1:10, 1:100 and 1:500 using UV-Vis, diffuse reflectance IR and ATR FT-IR spectroscopy, nanoparticle tracking analysis (NTA), dynamic light scattering (DLS). …”
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High-performance single-atom M/TiO2 catalysts in the reverse water-gas shift reaction: A comprehensive experimental and theoretical investigation by Moshood O. Bolarinwa, Aasif A. Dabbawala, Shamraiz Hussain Talib, Georgian Melinte, Thomas Delclos, Abdulmuizz Adamson, Abbas Khaleel, Kyriaki Polychronopoulou, Dalaver H. Anjum

“…Density functional theory (DFT) and in-situ diffuse reflectance infrared spectroscopy (DRIFTs) further explained that the atomically dispersed Ir sites in Ir/TiO2 follow a hydrogen-assisted mechanism, with the COOH* intermediate desorbing and dissociating into CO. …”
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Synthesis and Photocatalytic Activity of Mo-Doped TiO2 Nanoparticles by Ji-guo Huang, Xue-ting Guo, Bo Wang, Lin-yang Li, Mei-xia Zhao, Li-li Dong, Xing-juan Liu, Yu-ting Huang

“…The as-prepared samples were characterized by X-ray diffraction (XRD), diffuse reflectance UV-visible absorption spectra (UV-vis DRS), X-ray photoelectron spectra (XPS), and transmission electron microscopy (TEM). …”
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Radiative recombination model for BiSeI microcrystals: unveiling deep defects through photoluminescence by Marc Dolcet Sadurni, Jüri Krustok, Kristi Timmo, Valdek Mikli, Rokas Kondrotas, Maarja Grossberg-Kuusk, Marit Kauk-Kuusik

“…Both indirect and direct band gap energies of BiSeI were determined by ultraviolet–visible–near-infrared diffuse reflectance spectroscopy, with room temperature values of 1.17 eV and 1.29 eV, respectively. …”
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Facile one-pot synthesis of photoresponsive Cu1.8S and CuInS2 nanostructures aided by Cu-pyrimidylthiolate molecular precursor by Suraj Peerappa Yadav, Adish Tyagi, Alpa Y. Shah, Deepak Tyagi, Sanjay Kumar, Gourab Karmakar, Rohit Singh Chauhan, Afsar Ali Siddiki

“…Electron microscopic studies revealed the formation of polygonal and hexagonal morphology with varied size in Cu1.8S and CuInS₂ nanocrystals respectively. UV-Vis diffuse reflectance spectroscopy showed a slight blue shift in the band gap of the nanostructures compared to their bulk counterparts which can be attributed to quantum confinement or surface lattice distortion effects. …”
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Nigella Sativa-mediated Synthesis of BiVO4/g-C3N4 Composites for the Removal of Methylene Blue Dye by Ghinatanitha Haqqu Haryadinaru, Tien Setyaningtyas, Anung Riapanitra

“…The composites were synthesized using a coprecipitation method and characterized through various techniques, including X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), UV-Vis diffuse reflectance spectroscopy (DRS), Brunauer-Emmett-Teller (BET) surface area analysis, and scanning electron microscopy (SEM) to determine their crystal structure, chemical composition, morphology, adsorption and photocatalytic abilities. …”
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Facile Fabrication of CuO Modified TiO₂ Heterostructure for Enhanced Photocathodic Corrosion Protection of 304 Stainless Steel by Abinaya Radhakrishnan, Manoja Tharmaraj, Anuradha Ramani, Nagarajan Srinivasan

“…Surface characterization showed uniform, porous coatings with pore sizes ranging from 75 to 200 nm, which contributed to improved barrier properties. UV–visible diffuse reflectance spectroscopy (UV-DRS) demonstrated enhanced visible light absorption in the heterostructures. …”
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Two-Dimensional Lamellar Stacked Bi₂O₃/CeO₂ Type-II Heterojunctions Promote Carrier Separation to Enhance Ciprofloxacin Oxidation by Lihong Chen, Xiufei Zhao, Kuo Zhang, Biyu Wu, Xiao Yang, Haonan Zou, Lei Zhang, Huahao Shao, Tianyi Ma, Hu Zhou, Yusheng Zhang

“…Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) analyses confirmed the uniform distribution of Bi₂O₃ nanosheets on CeO₂ surfaces, forming an intimate interfacial contact that enhances charge separation and transfer efficiency. Photoluminescence (PL) spectroscopy, UV–visible diffuse reflectance spectroscopy (DRS), and electrochemical characterization revealed extended visible-light absorption (up to 550 nm) and accelerated electron migration in the heterojunction. …”
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Comparison of Photocatalytic Activity: Impact of Hydrophilic Properties on TiO₂ and ZrO₂ 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

“…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 TiO₂ and ZrO₂ TFs, respectively. …”
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Effect of Subgrains on the Performance of Mono-Like Crystalline Silicon Solar Cells by Su Zhou, Chunlan Zhou, Wenjing Wang, Yehua Tang, Jingwei Chen, Baojun Yan, Yan Zhao

“…These subgrains have an almost negligible effect on the optical performance, shunt resistance, and junction recombination but significantly affect the minority carrier diffusion length and quantum efficiency within a long wavelength range. …”
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Sodium cation exchanged zeolites for direct air capture of CO2 by Do Yeong Kim, Wo Bin Bae, Haehyun Min, Kyeong-Hun Ryu, Sungjoon Kweon, Linh Mai Tran, Young Jin Kim, Min Bum Park, Sung Bong Kang

“…This study systematically investigated the CO2 adsorption-desorption performance of the representative zeolites (ZSM-5, Beta, Mordenite and Y) in H- and Na-forms using various analytical methods, including in-situ Diffuse Reflectance Infrared Fourier Transform spectroscopy. …”
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Degradation of bisphenol A using a MOF@COF-modified polyacrylonitrile ultrafiltration membrane by Chloe G Hahn, Soraya P Malinga, Thollwana A Makhetha

“…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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Structural Insights into Ni‐Stabilized Fe‐Rich High‐Voltage Spinels: LiNixFe0.5−xMn1.5O4 by Anna Windmüller, Tingting Yang, Kristian Schaps, Anna Domgans, Frederik Zantis, Baolin Wu, Leyela Hassen Adem, Bikila Nagasa Olana, Chih‐Long Tsai, Shicheng Yu, Luc Raijmakers, Hans Kungl, Hermann Tempel, Rafal E. Dunin‐Borkowski, Shawn D. Lin, Mirijam Zobel, Bing Joe Hwang, Rüdiger‐A. Eichel

“…The cycling mechanism of LiFe0.5Mn1.5O4 and Ni‐stabilized LiNi0.2Fe0.3Mn1.5O4 is further compared via in situ powder X‐ray diffraction and in situ diffuse reflectance infrared Fourier transform spectroscopy. …”
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Pulsed reverse electrochemical synthesis of Ag-TiO2 composites from deep eutectic solvents: Photocatalytic and antibacterial behaviour by Ionela-Cristina Petcu, Raluca Negrea, Ana T.S.C. Brandão, Cosmin Romanitan, Oana Brincoveanu, Nikolay Djourelov, Iuliana Mihalache, L. Monica Veca, Gabriela Isopencu, Carlos M. Pereira, Liana Anicai, Cristina Busuioc, Sabrina State (Rosoiu)

“…TEM analysis revealed that silver nanoparticles (Ag NPs) are attached to TiO2 nanopowder, with the coexistence of TiO2 and Ag further confirmed by XRD and XPS. The recorded UV–Vis diffuse reflectance spectra (DRS) displayed a broad peak in the range of 400 – 650 nm, associated with the localized surface plasmon resonance (LSPR) of Ag NPs on the semiconductor’s surface. …”
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Novel CaCO3/g-C3N4 composites with enhanced charge separation and photocatalytic activity by Peng Lu, Xueli Hu, Yujie Li, Yazhou Peng, Meng Zhang, Xue Jiang, Youzhou He, Min Fu, Fan Dong, Zhi Zhang

“…The as-prepared samples were characterized using various techniques, such as scanning and transmission electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller analysis, as well as Fourier-transform infrared, X-ray photoelectron, photoluminescence, and UV–vis diffuse reflectance spectroscopy. The results of the experiments confirm the successful coupling of CaCO3 to g-C3N4. …”
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Rice Husks as a Biogenic Template for the Synthesis of Fe₂O₃/MCM-41 Nanomaterials for Polluted Water Remediation by Tamara B. Benzaquén, Paola M. Carraro, Griselda A. Eimer, Julio Urzúa-Ahumada, Po S. Poon, Juan Matos

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