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Porous carbons loaded with magnesium oxide were prepared through one-step process. Poly(ethylene terephthalate) and natural magnesite were used as carbon source and MgO precursor, respectively. An impact of a temperature and relative amounts of raw components used for preparations on the textural parameters of resulting hybrid materials is presented and discussed. As found, pore structure parameters tend to decrease along with MgO loading and temperature used during preparation process. Micropore area is the parameter being reduced primarily.

ABSTRACT:The kinetics of the adsorption of Cu 2+ and Pb 2+ ions from aqueous solution on to WD-ekstra activated carbon was studied by batch methods. Such adsorption processes proceeded in two stages: an initial rapid stage followed by a slower one. The Bangham equation was used to describe the kinetics of both adsorption processes. Measurements were carried out for solutions containing only one type of metal ion and also for binary systems containing both Cu 2+ and Pb 2+ions. A considerable influence of Pb 2+ ions on the adsorption of Cu 2+ ions was observed in the binary system. It was found that the equilibrium isotherms could be analyzed using the Langmuir, Freundlich-Langmuir and Freundlich methods.