... transform infrared (FT-IR) spectroscopy was used to study the surface interactions of adsorbed water in dynamic equilibrium with the gas phase on the MgO surface. Frequency...

2020年3月1日 · The as-synthesized MgO nanopowders are analyzed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), photoluminescence (PL) and photocatalytic studies. The XRD results of MgO nanoparticles indicated the cubic structure with the crystallite size of 27 nm.

MgO Nanoparticles were successfully made by co-precipitation method. Co-precipitation is a one of the best method to synthesis nanoparticles without agglomeration in the yield, size can be easily controlled. The synthesized nanoparticles have been characterized by FTIR, SEM-EDX. FTIR revealed the spectra of MgO Nanoparticles.

Characterization of the MgO and Ca-doped MgO nanoparticles were performed by XRD, SEM, EDX, and FT-IR analysis to verify the synthesis and variations in chemical composition. The band gap...

FTIR spectroscopy confirmed the presence of Mg–O and Pb–O vibrations, and the tendency of the materials to adsorb gases (H2O and CO2) from the surrounding atmosphere.

2003年10月11日 · We present reflection and absorption spectra of single-crystal MgO from about ∼100 to 18 000 cm −1 (∼100 to 0.5 μm), and derive emissivity, dielectric and optical functions (n and k) using classical dispersion analysis and supplementary data to ensure that the reflectivity values are correct at the low- and high-frequency limits.

2002年4月10日 · Peripheral IR studies were performed using MgO powder (Aldrich, 325 mesh) with a single bounce germanium attenuated total reflectance (ATR) module available with the FTIR (Nicolet, OMNI-Sampler) to help distinguish molecular adsorption of water from hydroxyl formation through reaction on the magnesium oxide surface.

FTIR spectroscopy (type VERTEX80 spectrometer for 400–4000 cm −1, Billerica, MA, USA) was performed to identify the existence of different molecules and ions on the sample surface, and the existence of MgO in particular. Morphological analysis was performed using a confocal microscope called “SENSOFAR”.

2014年5月20日 · MgO contains hydride related impurities as evidenced from the Fourier transform infrared (FTIR) spectroscopy results. The UV-vis absorption spectrum of MgO contains several visible absorption peaks mostly associated with oxygen vacancies.

2022年2月10日 · Magnesium oxide (MgO) thin films with various thicknesses were successfully developed on glass substrates by sol–gel dip-coating technique. We have investigated the influence of the thickness (157, 352, and 915 nm), on …