STRUCTURAL CHARACTERISTICS OF La2O3 THIN FILM GROWN ON LaB6

Kafadaryan, Y. A.; Petrosyan, S. I.; Badalyan, G. R.; Lazaryan, V. G.; Shirinyan, G. H.; Aghamalyan, N. R.; Hovsepyan, Roman; Semerjian, H. S.; Igityan, A.; Kuzanyan, A. S.

doi:10.1142/s2010194512006964

Cited by 4 publications

(1 citation statement)

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“…In particular, composites of this kind are characterized by unique physicochemical properties and are used in the creation of photocatalysts [1], batteries, various optical and electronic applications, optics and electronics, etc. [2]. Lanthanum oxide materials are explored in oxidative catalytic and electrocatalytic reactions, such as oxidative coupling of methane (OCM) and solid oxide fuel cells (SOFCs) [3], in creating gas sensors [4], and for liquid waste disposal.…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites Based on Cerium, Lanthanum, and Titanium Oxides Doped with Silver for Biomedical Application

et al. 2022

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Nanosized composites CeO2–Ag, La2O3–Ag, and TiO2–Ag are a class of nanomaterials suitable for photocatalysis, optical devices, and photoelectrochemical elements. Further, nanocomposites with several wt.% of silver can be used as creating materials for pathogenic virus inactivation with pandemic-neutralizing potential. Thus, CeO2–Ag, La2O3–Ag, and TiO2–Ag nanocomposites are prospective materials due to their optical and biological activity. In the present work, CeO2–Ag, La2O3–Ag, and TiO2–Ag nanocomposites were synthesized by the co-precipitation method. The morphological and optical properties and the structure of the prepared nanocomposites were analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM) with EDX, and nitrogen adsorption-desorption based on BET, Raman spectroscopy, and photoluminescence (PL). Both oxide matrixes corresponded to the cubic crystal lattice with the inclusion of argentum into the crystal lattice of oxides at relative low c(Ag) and reduction of silver on particle surface at 5 wt.% Ag and greater. The CeO2, TiO2, and La2O3 with a concentration of 4 wt.% Ag inhibited the growth processes of prokaryotic cells of E. coli, Bacillus sp., and S. aureus compared to pure oxides. Influenza A virus and herpes completely suppressed reproduction by nanocomposites of CeO2–Ag (2, 5 wt.%) and La2O3–Ag (2, 5 wt.%) action.

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