Spectrochim Acta A Mol Biomol Spectrosc
November 2024
In this study, an investigation was conducted on the structural and photoluminescence (PL) characteristics of LaAlBO (LAB) phosphors initially incorporated with Dy and Eu ions. Subsequently, the impact of varying Eu concentration while maintaining a constant Dy concentration was examined. Structural characterization was performed using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and energy-dispersive X-ray spectroscopy (EDS).
View Article and Find Full Text PDFThis study explores the structural and luminescent properties of terbium (Tb³⁺)-doped lanthanum aluminium borate (LaAl₂B₄O₁₀, abbreviated as LAB) phosphors, a novel host lattice for Tb³⁺ doping. LAB:Tb³⁺ phosphors, with varying dopant concentrations, were synthesized using a microwave-assisted combustion synthesis approach and characterized using X-ray diffraction (XRD), Rietveld refinement, and photoluminescence spectroscopy at both room and low temperatures. The structural analysis confirmed the hexagonal crystal structure of LAB and revealed successful incorporation of Tb³⁺ ions without altering the fundamental lattice.
View Article and Find Full Text PDFThis study explores the structural and optical qualities of LaCaO(BO) (LACOB) phosphors doped with Eu, Dy, and Tb using a microwave-assisted sol-gel technique. It uncovers oxygen-related luminescence defects in LACOB, highlighting emission peaks at 489 and 585 nm for Dy, a distinct sharp peak at 611 nm for Eu in the red spectrum, and a notable green emission for Tb due to specific transitions. The photoluminescence (PL) analysis indicates that luminescence is optimized through precise doping, leveraging dipole interactions, and localized resonant energy transfer, which are influenced by dopant concentration and spatial configuration.
View Article and Find Full Text PDFThe harmful cationic dyes present in industrial waste significantly decrease the effectiveness of remedy operations. Considering the horrendous impact of these dyes on the environment and biodiversity, silver bromide (AgBr) and chitosan (CS) doped copper ferrite (CuFeO) nanostructures (NSs) were prepared by the co-precipitation route. In this work, The surface characteristics of CuFeO can be altered by CS, potentially enhancing its catalytic reaction compatibility.
View Article and Find Full Text PDFIron oxide nanoparticle (ION)-based ferro-nanofluids (FNs) have been used for different technological applications owing to their excellent magneto-rheological properties. A comprehensive overview of the current advancement of FNs based on IONs for various engineering applications is unquestionably necessary. Hence, in this review article, various important advanced technological applications of ION-based FNs concerning different engineering fields are critically summarized.
View Article and Find Full Text PDFThe penicillin derivative amoxicillin (AMX) plays an important role in treating various types of infections caused by bacteria. However, excessive use of AMX may have negative health effects. Therefore, it is of utmost importance to detect and quantify the AMX in pharmaceutical drugs, biological fluids, and environmental samples with high sensitivity.
View Article and Find Full Text PDFThis paper reports the facile one-pot synthesis of glycidol via the transesterification of glycerol with dimethyl carbonate using KNO/AlO nanoparticles as supporting catalysts. KNO/AlO nanoparticles were prepared by the impregnation method. XRD and FT-IR analyses indicated an interaction between KNO and AlO that enabled the decomposition of KNO during the process and resulted in the formation of KAlO, the Al-O-K group, and KO.
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