Cu/MgO and Ni/MgO composite nanoparticles for fast, high-efficiency adsorption of aqueous lead(II) and chromium(III) ion
- PDF / 2,108,958 Bytes
- 10 Pages / 595.276 x 790.866 pts Page_size
- 91 Downloads / 144 Views
Cu/MgO and Ni/MgO composite nanoparticles for fast, high-efficiency adsorption of aqueous lead(II) and chromium(III) ions Iryna Matsukevich1,*, Yuliya Lipai1, and Valentin Romanovski1,2 1
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus, Surganova 9/1, 220072 Minsk, Belarus 2 Center of Functional Nano-Ceramics, National University of Science and Technology «MISIS», Lenin av., 4, Moscow, Russia 119049
Received: 13 August 2020
ABSTRACT
Accepted: 17 November 2020
The conditions were found and the patterns of formation of Ni and Cu composites based on MgO, obtained by the precipitation method and by the glycine– citrate–nitrate method. The obtained materials are of interest as sorbents for the purification of aqueous media from toxic impurities, as well as catalysts in organic synthesis, in particular for the production of methanol from carbon dioxide. The phase composition, thermal stability, microstructure of obtained nanocomposites, as well as their sorption properties, were studied. It was found that high sorption capacities of powders of magnesium oxide and MgOM (where M—Cu, Ni) nanocomposites with respect to lead and chromium ions are up to 2989.0 and 499.9 mg/g, respectively.
Ó
Springer Science+Business
Media, LLC, part of Springer Nature 2020
Introduction Nanocomposite materials based on metal oxides nanoparticles are of interest from an environmental perspective to prevent air, water and soil pollution. Thus, many modern studies have shown the effectiveness of nanocomposites based on metal and metal oxide nanoparticles as a sorbent of toxic impurities from aqueous media [1–5], a photocatalyst in the photodegradation of antibiotic solutions [6] and dyes degradation [7], or as a catalyst in CO oxidation [8], in the synthesis of methanol from carbon dioxide Handling Editor: Christopher Blanford.
Address correspondence to E-mail: [email protected]
https://doi.org/10.1007/s10853-020-05593-4
[1, 9–14]. Such materials can find application both for solving one of the listed problems and for a complex of similar tasks [15]. Individual nanoparticles of zero-valence metals are suitable for cleaning agricultural and industrial wastewater from heavy metal ions [16] and nitrate ions [17]. However, due to the high surface energy, the metal particles agglomerate, which leads to a decrease in their reactivity. The authors of [3, 4] showed that the use of a support matrix with a developed surface allows one to influence the growth and size of metal crystallites. In addition, the
J Mater Sci
advantage of nanocomposite materials based on a carrier oxide and metal nanoparticles is that they can simultaneously perform two functions—sorbent and catalyst. The synergy of chemical and physicochemical processes that occur when such material comes in contact with a purified aqueous medium allows for a superb high degree of purification in short contact time. In this regard, research aimed at the synthesis and study of the adsorption properties of new nanocomposite materials
Data Loading...
