This study uses the Quantum ESPRESSO code to introduce Hubbard correction (U) to the density functional theory (DFT) in order to examine the effects of non-metals (C, F, N, and S) doping on the structural, electronic, and optical characteristics of rutile TiO. Rutile TiO is a substance that shows promise for use in renewable energy production, including fuels and solar energy, as well as environmental cleanup. Its wide bandgap, however, restricts their uses to areas with UV light.
View Article and Find Full Text PDFThe solution-combustion approach was used to create CaBO:Euphosphors using Ba (NO), Eu (NO)·5HO, HBO, NH(ON)H, and NHNO as source materials. We investigated the thermoluminescence (TL) characteristics of beta (β)-irradiated CaBO:Eu. When the TL intensity was evaluated at different dosages of β, it rose with the dose.
View Article and Find Full Text PDFA biosynthesis composite using the green synthesis of titled metal nanoparticles (nickel oxide nanoparticles, NiO NPs, and carbon dots, C-dots) was produced, characterized, and then applied for antimicrobial activities. NiO NPs were produced using the () plant leaf extract and nickel nitrate (III) hexahydrate [Ni(NO)·2HO] as precursors, while C-dots were produced using citric acid and -phenylenediamine (-OPD). The distribution of the average particle size of the NiO NPs and NiO NPs@C-dots was 25.
View Article and Find Full Text PDFThe preparation of flexible electrode, including working electrode (WE) and counter electrode (CE), for dye-sensitized solar cells (DSSCs) utilizing metal oxides using environmentally friendly sustainable TEMPO-oxidized cellulose nanofibers (TOCNFs) is reported in this work. A new type of flexible electrode for the DSSCs, which were made of cellulose nanofiber composites with nickel hydroxide [CNF/Ni(OH)] substrate films and cellulose nanofiber composites with polypyrrole (CNF/PPY). Nickel hydroxide, Ni(OH), has been prepared hydrothermally in the presence of TOCNFs, [TOCNF@Ni(OH)].
View Article and Find Full Text PDFZnVO phosphor was made using a sol-gel technique and then annealed at temperatures ranging from 700 to 850 °C. The x-ray diffraction (XRD) results revealed that ZnVO exhibits a single monoclinic phase. The width at half-maximum of the (022) XRD peak shrank overall resulting in improved crystallinity of the ZnVO phosphors with higher annealing temperatures.
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