多孔晶态硫化铟的合成、表征及铯离子交换性能研究  

Synthesis and characterization of porous crystalline indium sulfide and its ion exchange capacities for Cesium

作　　者：兰鹰[1] 苏哲[1] 李兴亮[1] 文湘闽[2] 谢家理[1] 晋军[3] 李首建[1] 

机构地区：[1]四川大学化学学院,四川成都610064 [2]四川省疾控中心辐射防护与核安全医学所,四川成都610041 [3]四川大学分析测试中心,四川成都610064

出　　处：《化学研究与应用》2006年第2期129-132,共4页Chemical Research and Application

基　　金：国家自然科学基金资助项目(20471039)

摘　　要：用水热法合成了一种新型无机离子交换材料。XRD，IR，TGA-DTA，SEM-EDX，孔结构测定和元素分析等表征研究揭示：产物为多孔晶态硫化铟（经验分子式为：[In10.5S14.5]·[（H2NCH2 CH2-NHCH2）2]2.5）；有较高热稳定性；模板剂三乙烯四胺填充于材料构槊的空隙或孔道中，同时起平衡材料整体构架电荷的作用。离子交换试验结果表明，合成产物在较大的酸度范围内（pH=4～[H^＋]=lmol／dm’）对Cs’保持稳定的交换能力，最大交换容量为：0．31retool／g。A new inorganic ion exchanger was synthesized using hydrothermal method for the purpose of separation of Ca^＋ from HLLW. The characterization of as-synthesized material was performed by XRD, IR, TGA- DTA,SEM -EDX,determination for porous structure and elemental analysis. The results suggest that the product is a porous crystalline indium sulphide with higher thermal stability, the probable formula of the compound is [In10.5S14.5]·[（H2NCH2 CH2-NHCH2）2]2.5）, and in the mean time, triethylenetetramine has filled in holes and cavities of the porous resultant as template and balanced the charges of the framework. Ion-exchanging tests show that the newly synthesized exchanger keeps stable capability for extracting Cs from test solution in a wider acidic range from pH = 4 to [ H^＋ ] = lmol/dm^3, the maximum ion exchange capacity is 0.3 1mmol/g under the testing condition.

关 键 词：无机离子交换剂 铯 硫化铟 多孔材料 HLLW 

分 类 号：O614.372[理学—无机化学] O614.115[理学—化学]