6533b856fe1ef96bd12b1c85
RESEARCH PRODUCT
Influence of hydrogen cations on kinetics and equilibria of heavy-metal sorption by algae—sorption of copper cations by the alga Palmaria palmata (Linnaeus) Weber & Mohr (Rhodophyta)
Małgorzata RajfurAndrzej Kłossubject
biologyHydrogenChemistryKineticsInorganic chemistryIonic bondingchemistry.chemical_elementLangmuir adsorption modelSorptionPlant ScienceAquatic Sciencebiology.organism_classificationCoppersymbols.namesakeAlgaePalmaria palmataBotanysymbolsdescription
The influence of hydrogen cations on kinetics and equilibria of sorption of copper cations by the marine alga Palmaria palmata (Linnaeus) Weber & Mohr was studied under static conditions. The competitive effect of the H+ cations is described, which influenced the uncertainty of evaluation of the alga sorption capacity. Under static conditions, the variation of the Cu2+/H+ concentration ratio during sorption was found nonmonotonic. The Langmuir isotherm model was used to determine the sorption capacity of the alga, namely 12.4 mg g−1 of dry algae mass. A similar value was determined from the kinetic parameters of the ionic exchange which is considered a pseudo-second-order chemical reaction. The consistent results indicated that the mathematical models used correctly described the equilibria and kinetics of the ionic exchange between algae and solutions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-06 | Journal of Applied Phycology |