LiZr_2(PO_4)_3的Na/Li及Ag/Li离子交换  

The Ion Exchange Behavior of Na/Li and Ag/Li for LiZr_2(PO_4)_3

作　　者：娄太平[1] 李大纲[1] 金玉明[1] 顾作凯[1] 张乐[1] 郭军兴[1] 

机构地区：[1]东北大学材料与冶金学院,沈阳110004

出　　处：《无机化学学报》2009年第10期1736-1741,共6页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.50274030)资助项目

摘　　要：研究了LiZr2(PO4)3在水溶液中的Na/Li和Ag/Li离子交换行为。结果表明,LiZr2(PO4)3对Na+和Ag+离子均具有很高的选择性,且对Ag+的选择性高于Na+。LiZr2(PO4)3与Ag+的离子交换反应是通过形成固溶体的形式进行的,而与Na+的离子交换反应则是通过置换进行的。温度升高有利于提高LiZr2(PO4)3上Na/Li和Ag/Li的离子交换反应速度。The ion exchange behavior of Na/Li and Ag/Li for LiZr2（PO4）3 in solution was studied. The results show that LiZr2（PO4）3 has very high ion exchange selectivity to Na^＋ and Ag^＋ in solution, and the selectivity to Ag^＋ is higher than that to Na^＋. In the reaction mechanism aspect, the ion exchange reaction LiZr2（PO4）3 towards Ag^＋ is through the formation of solid solution, and towards Na ^＋ is carried out through the replacement. The Na/Li and Ag/Li ion exchange reaction rate increases obviously for LiZr2（PO4）3 with increasing temperature.

关 键 词：LiZr2(PO4)3 离子交换 选择性 

分 类 号：O614.111[理学—无机化学] O614.31[理学—化学]