Syntheses, Crystal Structures, Ion-Exchange, and Photocatalytic Properties of Two Amine-Directed Ge-Sb-S Compounds
Syntheses, Crystal Structures, Ion-Exchange, and Photocatalytic Properties of Two Amine-Directed Ge-Sb-S Compounds
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两种胺导向 Ge-Sb-S 化合物的合成、晶体结构、离子交换和光催化性能
DOI：
10.1021/acs.inorgchem.5b01181
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发表时间：
2015
影响因子：
4.6
通讯作者：
Xiao-Ying Huang
中科院分区：
文献类型：
--
作者：
Bo Zhang;Mei-Ling Feng;Hong-Hua Cui;Cheng-Feng Du;Xing-Hui Qi;Nan-Nan Shen;Xiao-Ying Huang
在众多的杂金属硫属锑酸盐中，胺导向的Ge-Sb-S化合物相对较少。本文报道了两种新型胺导向Ge-Sb-S化合物[CH_3 NH_3]_20 Ge_（10）Sb_（28）S_（72）·7 H_2 O（1）和[（CH_3CH_2CH_2）_2NH_2]_3Ge_3Sb_5S_（15）·0.5（C_2 H_5 OH）（2）的溶剂热合成、晶体结构、离子交换、光学和光催化性能。化合物1的结构特征是前所未有的二维Ge-Sb-S双层结构，它由两个双层旋转的厚[Ge 8 Sb 28 S72] n28 n单层通过顶点共享的[GeS 4]四面体连接而成。化合物2具有独特的[Ge 3Sb 5S 15] n3 n-板，其穿孔有大的椭圆状窗口。值得注意的是，化合物1表现出优异的Cs+离子交换性能，尽管存在过量的竞争性阳离子，如Na+，K+，Mg 2+，和Ca 2+离子。此外，化合物1对罗丹明B具有可见光催化降解活性。
Among numerous heterometallic chalcogenidoantimonates, relatively a few amine-directed Ge–Sb–S compounds have been synthesized. Presented here are the solvothermal syntheses, crystal structures, and ion-exchange, optical, and photocatalytic properties of two novel amine-directed Ge–Sb–S compounds, namely, [CH3NH3]20Ge10Sb28S72·7H2O (1) and [(CH3CH2CH2)2NH2]3Ge3Sb5S15·0.5(C2H5OH) (2). The structure of1features an unprecedented two-dimensional Ge–Sb–S double-layer composed of two twofold rotational symmetry-related thick [Ge8Sb28S72]n28n–single layers adhered via vertex-sharing [GeS4] tetrahedra. Compound2features a unique [Ge3Sb5S15]n3n–slab perforated with large elliptic-like windows. Remarkably, compound1exhibited excellent Cs+ion-exchange property despite the presence of excess competitive cations, such as Na+, K+, Mg2+, and Ca2+ions. In addition, compound1displayed visible-light-driven photocatalytic activity for degradation of rhodamine B.