Study of an Inorganic Ion Exchanger Mg2Ti1.25(PO4)3
|Periodical||Advanced Materials Research (Volume 442)|
|Main Theme||Smart Materials and Intelligent Systems|
|Edited by||Shaobo Zhong and Xilong Qu|
|Citation||Heng Li, 2012, Advanced Materials Research, 442, 50|
|Online since||January, 2012|
|Keywords||Exchange Capacity, Ion Exchanger, Mg2Ti1.25(PO4)3|
The ion-exchanger Mg2Ti1.25(PO4)3 of spinel type was prepared by means of the solid state reaction crystallization method. Its ion-exchange properties for alkali ions such as saturation capacity of exchange and distribution coefficient were determined. Mg2Ti1.25(PO4)3 was characterized by virtue of X-ray diffraction method. This inorganic ion-exchanger (Mg2Ti1.25(PO4)3) has the saturation capacity of exchange for Li+ higher than those for other alkali ions, the saturation capacity of exchange for Li+ reaches to 6.0mmol/g, MgTi-750(H) has a higher selectivity of ion exchange for Li+ than for other alkali ions. These result show MgTi-750 (H) has better memory and selectivity of ion exchange, and higher capacity of ion exchange for Li+. It is a kind of prospective ionic sieve for Li+.