Adsorption of Zinc(II) on diatomite and manganese-oxide-modified diatomite: A kinetic and equilibrium study

- The removal of Zn(II) ions from aqueous solution was studied using natural and MnO2 modified diatomite samples at different temperatures.
- The sorption of Zn(II) on the natural and modified diatomite was an endothermic processes, controlled by physical mechanisms and spontaneously.
- Adsorption of zinc metal ion on diatomite samples is more or less a two step process.
- Adsorption of Zn(II) on natural and modified diatomite could be explained by the mechanism of pseudo-second-order.