LiMg_(0.5)Mn_(1.5)O_4的合成及对Li^+的离子交换选择性  

LiMg_(0.5)Mn_(1.5)O_4 Synthesis and Its Selectivity to Li^+ Exchange

作　　者：董殿权[1,2] 张凤宝[1] 张国亮[1] 刘亦凡[3] 

机构地区：[1]天津大学化工学院 [2]青岛科技大学化工学院,青岛266042 [3]青岛科技大学化工学院

出　　处：《无机化学学报》2004年第9期1126-1130,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.29376245);山东省科技厅资助项目(No.03110102)。

摘　　要：The ion-exchanger LiMg0.5Mn1.5O4 of spinel type was prepared by the common precipitation/heated crystallization method, and was acid modified. Its properties of ion-exchange for alkali ions such as saturation capacity of exchange, distribution coefficient and the pH titration curve have been determined. LiMg0.5Mn1.5O4 was characterized by X-ray diffraction. These results show that this inorganic ion-exchanger has better remembering and selectivity of ion exchange, and higher capacity of exchange for Li+, the capacity of exchange reaches 32.39 mg·g-1 for Li+.The ion-exchanger LiMg0.5Mn1.5O4 of spinel type was prepared by the common precipitation/heated crystallization method, and was acid modified. Its properties of ion-exchange for alkali ions such as saturation capacity of exchange, distribution coefficient and the pH titration curve have been determined. LiMg0.5Mn1.5O4 was characterized by X-ray diffraction. These results show that this inorganic ion-exchanger has better remembering and selectivity of ion exchange, and higher capacity of exchange for Li+, the capacity of exchange reaches 32.39 mg.g(-1) for Li+.

关 键 词：锂镁锰复合氧化物 合成 锂离子 离子交换选择性 锂离子筛 

分 类 号：O614.111[理学—无机化学]