Multi-component adsorption of Ag(I), Cd(II) and Cu(II) by natural carbonaceous materials.
Adsorption of silver, cadmium and copper from aqueous solutions by natural carbonaceous materials was investigated. The studied series of natural materials (spruce wood, pine bark, cork, peat, fusinite, lignite, oxidised lignite, bituminous coal and anthracite) was extended to include industrial carbon-rich materials: coke, activated carbon F-400 and Multisorb 100. Adsorption was tested on a single-component system and on the binary and ternary mixtures. All the materials used differ in their ability to adsorb selected metals. The adsorption of metals is significantly affected by the presence of other ions in solution. Total metal uptake was considerably higher in a mixture than single-ion adsorption. Chemical reactions, such as precipitation and reduction of metallic silver, play a role in metal uptake by bituminous coal, coke and activated carbon.
Hanzlík
J
J
Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University in Prague, Albertov 6, Prague 2 128 43, Czech Republic.
Jehlicka
Jan
J
Sebek
O Ondrej
OO
Weishauptová
Zuzana
Z
Machovic
V Vladimír
VV
D000327:Adsorption; D001673:Biodegradation, Environmental; D002104:Cadmium / Q000737:chemistry*; D017554:Carbon Compounds, Inorganic / Q000737:chemistry*; D002412:Cations; D003077:Coke; D003300:Copper / Q000737:chemistry*; D005579:Fossil Fuels; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D012834:Silver / Q000737:chemistry*; D013997:Time Factors; D014934:Wood
D017554:Carbon Compounds, Inorganic; D002412:Cations; D003077:Coke; D005579:Fossil Fuels; D002104:Cadmium; D012834:Silver; D003300:Copper