نتایج جستجو برای: saed
تعداد نتایج: 368 فیلتر نتایج به سال:
The green synthesis of inorganic nanoparticles (NPs) using bio-materials has attained enormous attention in recent years due to its simple, eco-friendly, low-cost and non-toxic nature. In this work, silver (AgNPs) gold (AuNPs) were synthesized by the marine algae extract, Sargassum serratifolium (SS). characteristic studies bio-synthesized SS-AgNPs SS-AuNPs carried out ultraviolet–visible (UV–V...
Abstract This dataset presents longitudinal data collected through four surveys (in six-monthly intervals) of fresh university and polytechnic graduates in Nigeria. The were from 21,940 unique young men women who underwent National Youth Service Corps ( nysc ) programme across ten states is a compulsory one-year national service that all Nigerians under the age 30 years must undergo after gradu...
In this work, nitrogen- and oxygen-doped fluorescent carbon dots (NOFCDs) were prepared using a simple green hydrothermal carbonization technique. Aqueous ammonia the plant extract of Garcinia mangostana used as source nitrogen carbon, respectively. The NOFCDs examined variety microscopic spectroscopic techniques for physicochemical characterization. Fluorescence UV–visible spectroscopy measure...
This work presents a contribution to the study of new Ni-rich spinel cathode material, LiNiMnO4, for Li-ion batteries operating in 5-V region. The LiNiMnO4 compound was synthesized by sol-gel method assisted ethylene diamine tetra-acetic acid (EDTA) as chelator. Structural analyses carried out Rietveld refinements and Raman spectroscopy, selected area electron diffraction (SAED) X-ray photoelec...
Considering nutrient delivery and micronutrient use efficiency problems, mesoporous nanosilica (mNs) reduced graphene oxide (rGO)-based iron zinc nanocomposites were formulated. Prepared characterized for FTIR spectroscopy, XRD, FE-SEM, HR-TEM, AAS to examine surface functional groups, morphology, structural composition. XRD spectrum confirmation with SAED image of confirms the polycrystalline ...
Near-infrared emitting nano-sized particles of ZnGa2−x(Mg/Si)xO4:Cr3+ (x = 0–0.15, termed as ZGMSO:Cr3+) with persistent luminescence were prepared by sol-gel processing followed calcination. The samples tested XRD, TEM, STEM, SAED, Raman, XPS, UV-Vis-NIR, TL, PLE/PL spectroscopy, and decay analysis. Equimolar incorporation Mg2+ Si4+ ions did not change the spindle structure ZnGa2O4 seriously. ...
The liquid crystalline state is a universal phenomenon involving the formation of an ordered structure via a self-assembly process that has attracted attention from numerous scientists. In this study, the dinoflagellate histone-like protein HCcp3 is shown to induce super-coiled pUC18 plasmid DNA to enter a liquid crystalline state in vitro, and the role of HCcp3 in gene condensation in vivo is ...
A sample of nepheline from Egan Chute, near Bancroft, Ontario, with a chemical composition (K1.32 0.68)(Na6.05Ca0.22) [Al7.77Si8.21O32], has been studied using single-crystal X-ray diffraction, transmission electron microscopy (TEM), thermal analyses, and powder X-ray diffraction. Its structure was refined in space group P63 to an R1 index of 0.041 on the basis of 737 unique observed reflection...
Novel Bi(2)S(3)/BiOI heterostructures were successfully synthesized through a facile and economical ion exchange method between BiOI and thioacetamide (CH(3)CSNH(2)), and characterized by multiform techniques, such as XRD, Raman, FT-IR, XPS, SEM, TEM, HRTEM, SAED, BET and DRS. The obtained Bi(2)S(3)/BiOI photocatalysts showed excellent photocatalytic performance for decomposing organic dye meth...
Reactions of R(2)SnCl(2) (R = Me, Et, (t)Bu) with NaSeC(5)H(3)(R'-3)N (R' = H or Me) gave complexes of the composition [R(2)Sn{2-SeC(5)H(3)(R'-3)N)}(2)], which on treatment with R(2)SnCl(2) afforded chloro complexes, [R(2)Sn{2-SeC(5)H(3)(R'-3)N}Cl]. These complexes were characterized by elemental analyses and UV-vis and NMR ((1)H, (13)C, (77)Se and (119)Sn) spectroscopy. The crystal structures ...
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