Syntheses, Crystal Structures, Ion-Exchange, and Photocatalytic Properties of Two Amine-Directed Ge鈥揝b鈥揝 Compounds

详细信息    查看全文

• 作者：Bo Zhang ; Mei-Ling Feng ; Hong-Hua Cui ; Cheng-Feng Du ; Xing-Hui Qi ; Nan-Nan Shen ; Xiao-Ying Huang
• 刊名：Inorganic Chemistry
• 出版年：2015
• 出版时间：September 8, 2015
• 年：2015
• 卷：54
• 期：17
• 页码：8474-8481
• 全文大小：511K
• ISSN：1520-510X

文摘

Among numerous heterometallic chalcogenidoantimonates, relatively a few amine-directed Ge鈥揝b鈥揝 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鈥揝b鈥揝 compounds, namely, [CH₃NH₃]₂₀Ge₁₀Sb₂₈S₇₂路7H₂O (1) and [(CH₃CH₂CH₂)₂NH₂]₃Ge₃Sb₅S₁₅路0.5(C₂H₅OH) (2). The structure of 1 features an unprecedented two-dimensional Ge鈥揝b鈥揝 double-layer composed of two twofold rotational symmetry-related thick [Ge₈Sb₂₈S₇₂]_n^{28n鈥?/sup> single layers adhered via vertex-sharing [GeS₄] tetrahedra. Compound 2 features a unique [Ge₃Sb₅S₁₅]_n3n鈥?/sup> slab perforated with large elliptic-like windows. Remarkably, compound 1 exhibited excellent Cs+ ion-exchange property despite the presence of excess competitive cations, such as Na+, K+, Mg2+, and Ca2+ ions. In addition, compound 1 displayed visible-light-driven photocatalytic activity for degradation of rhodamine B.}