Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Preparation of green brucite [NixMg1-x(OH2)] resulting from the combination of nickel ions and periclase (MgO) applied against yeast and bacteria

Cassio Siqueira
,
Aline B. Schons
ORCID logo ,
Patrícia Appelt
ORCID logo ,
Weslei D. Silva
,
Nayara Balaba
,
Mário A. A. Da Cunha
ORCID logo ,
Fauze J. Anaissi
*
Version 1 : Received: 5 September 2023 / Approved: 6 September 2023 / Online: 7 September 2023 (04:58:33 CEST)

How to cite: Siqueira, C.; Schons, A.B.; Appelt, P.; Silva, W.D.; Balaba, N.; Da Cunha, M.A.A.; Anaissi, F.J. Preparation of green brucite [NixMg1-x(OH2)] resulting from the combination of nickel ions and periclase (MgO) applied against yeast and bacteria. Preprints 2023, 2023090442. https://doi.org/10.20944/preprints202309.0442.v1 Siqueira, C.; Schons, A.B.; Appelt, P.; Silva, W.D.; Balaba, N.; Da Cunha, M.A.A.; Anaissi, F.J. Preparation of green brucite [NixMg1-x(OH2)] resulting from the combination of nickel ions and periclase (MgO) applied against yeast and bacteria. Preprints 2023, 2023090442. https://doi.org/10.20944/preprints202309.0442.v1

Abstract

Magnesium oxide is typically white and can be colorized with transition metal insertion by doping or by adsorption. We present the preparation of green colored hydroxide by the adsorption of nickel ions by porous MgO. MgO was prepared by the colloidal starch suspension method and used to remove nickel ions from the aqueous solution. The oxides and hydroxides, before and after adsorption, were characterized by X-ray diffraction technical, and show that a phase change occurs, a transition from periclase (MgO) to brucite (Mg(OH)2) due to the interaction with nickel salts (acetate, chloride, and nitrate). The FTIR spectrum corroborates with the DRX data on the formation of brucite like crystal lattices. The new samples present a green color, indicative of the incor-po-ration of the Ni2+ ions. Mixed oxides in the form of brucite were used in microbiological tests and showed action against fungi and bacteria, with bactericidal, bacteriostatic, or fungistatic function. Green brucite (NixMg1-x(OH)2) can be used as an inorganic pigment in white or colorless paints with a special biocidal property.

Keywords

periclase; green brucite; biocide; microbiology

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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