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In our work, analcime has a crystallite size of 90.54 nm was synthesised using the hydrothermal method in the presence of urea as organic structure-directing agent. Then, Mn(II) ions were removed from aqueous media using the synthesised analcime sample. Some analytical parameters affecting the removal of Mn(II) ions were studied such as contact time, pH, concentration, and temperature. The results of the effect of contact time confirmed that the pseudo-second-order kinetic model was the best for describing the adsorption process. Also, the equilibrium time and optimum pH were 60 min and 6.5, respectively. Besides, the results of the effect of concentration confirmed that the Langmuir isotherm was the best for describing the adsorption process where the maximum adsorption capacity was 81.169 mg/g. Moreover, the results of the effect of temperature confirmed that the removal of Mn(II) ions was exothermic.

Studying some analytical parameters affecting the removal of Mn(II) ions from aqueous media using facilely synthesised analcime