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Obtaining of ZnO Nanoparticles Decorated with Bi 2 O 3 and NiO by Modified Sol–Gel Technique
Author(s) -
Trusova Elena A.,
Vokhmintcev Kirill V.
Publication year - 2014
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12684
Subject(s) - materials science , non blocking i/o , hexamethylenetetramine , nanoparticle , fourier transform infrared spectroscopy , adsorption , sol gel , acetylacetone , particle size , chemical engineering , homogeneity (statistics) , metal , analytical chemistry (journal) , inorganic chemistry , nanotechnology , metallurgy , chemistry , catalysis , organic chemistry , statistics , mathematics , engineering
The modified sol–gel technique was proposed to obtain ZnO nanoparticles with the sizes of 30–70 nm. The proposed method allows obtaining ultradispersed powdery composites with high chemical homogeneity, which are highly demanded raw products for the development of new functional materials of a wide destination range. Metal nitrates were used as the metal sources, and hexamethylenetetramine and monoethanolamine were used to sol stabilization. Acetylacetone was used as complexing agent to obtain ultradispersed ZnO powders. The obtained powders were characterized by use XRD , TEM , N 2 adsorption–desorption, FTIR spectroscopy, and element analysis. According to the results, it can be observed that Bi 2 O 3 or/and NiO with particle sizes of ≤5 and 8–20 nm, respectively, are dispersed uniformly on the surface of ZnO nanoparticles with sizes of 50–70 nm. The chemical nature of the decoration was confirmed by the presence of characteristic bands in the FTIR spectra, indicated the chemical interaction between all structural elements of compositions.