| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 691297 | Journal of the Taiwan Institute of Chemical Engineers | 2013 | 7 Pages |
The removal of Co(II) from aqueous solutions using magnesium hydroxide powders was investigated as a function of pH, reaction temperature, contact time, adsorbent dosage and initial cobalt ions concentration in batch studies. The adsorption process followed pseudo-second order kinetics. Equilibrium data were fitted well in the Langmuir model and the monolayer adsorption capacity of Co(II) ions was determined as 125.00 mg/g at 318 K. Thermodynamic parameters revealed that the adsorption of Co(II) onto magnesium hydroxide was feasible, spontaneous, endothermic, with a increased randomness in nature. Magnesium hydroxide powders were found to be effective in removing Co(II) ion from aqueous solutions since it has a relatively higher adsorption capacity than other adsorbents.
► The adsorption process followed pseudo-second order kinetics. ► Equilibrium data were fitted well in the Langmuir model. ► The adsorption capacity of Co(II) ions was determined as 125 mg/g at 318 K. ► The adsorption of Co(II) onto magnesium hydroxide was feasible, spontaneous, endothermic.
