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A surface ionization and adsorption model is used to simulate the adsorption of zinc species from aqueous solutions of varying pH on a number of different activated carbons and the results compared with experimental data. In all cases good agreement is obtained between theory and experiment. It...
Activated carbons were produced from an Illinois Basin bituminous coal (IBC-106) by a three-step process: oxidation of the coal in air at 150–250 °C for 2–40 hours, devolatilization of these oxidized coals in nitrogen at 500–730 °C for 1 hour and activation (gasification) of the chars in...
The adsorption of a ca 5.4 × 10 −5 M aqueous solution of methylene blue has been examined on five activated carbon samples. The equilibrium concentrations ( C e ) were determined by spectrophotometry studies. The analysis of Freundlich adsorption isotherms obtained provides the adsorption...
Monodispersed nanosize carbon spheres have recently been synthesized using a mixed-valent oxide-catalytic carbonization (MVOCC) process. In this paper, a high surface porosity of carbon spheres produced by an interaction with WO 3 is reported. The interaction mechanism is due to the reduction of...
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