期刊
JOURNAL OF SOLID STATE CHEMISTRY
卷 220, 期 -, 页码 118-123出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2014.08.018
关键词
Chalcogenides; Surfactant-thermal method; Photocatalytic; Hydrogen
资金
- MOE [RG 16/12, ARC 20/12, ARC 2/13]
- CREATE program (Nanomaterials for Energy and Water Management) from NRF, Singapore
- Singapore National Research Foundation (NRF) Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) program: the Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE)
Two novel two-dimensional crystalline chalcogenidoantimonates, [MnSb2S4(N2H4)(2)] (1) and [Mn(tepa) Sb6S10] (2) (tepa=tetraethylenepentamine), have been successfully synthesized under surfactant-thermal conditions through using PEG-400 and sodium dodecyl sulfate as reaction media, respectively. In compound 1, [MnS2N4](n)(2n-) species connect [SbS2](n)(n-) chains via vertex-sharing S atoms to form neutral layered frameworks, while in compound 2, 8-membered windows [Sb4S8](n)(4n-), 24-membered windows [Sb12S24](n)(12n-) and Mn atoms are connected together to form neutral 2D-[MnSb6S10] layers. All Sb atoms in both complexes form [(SbS3)-S-III](3-) trigonal-pyramid by coordinating with three S atoms. The steep UV-vis absorption edges indicate that 1 and 2 have the band gaps of 1.96 eV and 2.12 eV, respectively. Both compound 1 and 2 show active visible-light-driven photocatalytic properties for hydrogen production. (C) 2014 Elsevier Inc. All rights reserved.
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