Title
Adsorption of Ni(II) from model solutions using co-precipitated inorganic oxides
Authors
[ 1 ] Instytut Technologii i Inżynierii Chemicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ P ] employee | [ D ] phd student
Year of publication
2013
Published in
Article type
scientific article
Publication language
english
Keywords
EN
- inorganic oxide adsorbent
- nickel(II) ions
- adsorption
- atomic absorption spectroscopy
- energy dispersive X-ray spectroscopy
- equivalent point titration
Abstract
EN The aim of this work was to obtain an inorganic oxide system containing silica and magnesium oxide, and characterized by specific physicochemical properties, in particular well-defined adsorption parameters. The preparation process was carried out according to a co-precipitation method using solutions of sodium silicate and selected inorganic magnesium salt. The oxide system obtained (MgO·SiO2) was used as a support (adsorbent) of nickel(II) ions, whose precursors were model solutions of nitrates. The effectiveness of the adsorption process was evaluated using many different analytical techniques, including atomic absorption spectroscopy, energy dispersive X-ray spectroscopy and equivalent point titration. Moreover the stability of adsorbent/adsorbate bonding was estimated. The oxide systems—adsorbents—used in the process were also analyzed according to their physicochemical properties, especially changes in adsorption parameters. The last part of the study involved evaluation of the kinetics of the adsorption process depending on time and the pH of the reaction system.
Pages (from - to)
423 - 434
License type
CC BY (attribution alone)
Open Access Mode
czasopismo hybrydowe
Open Access Text Version
final published version
Full text of article
Access level to full text
public
Ministry points / journal
30
Impact Factor
1,735
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