Journal
INORGANIC CHEMISTRY
Volume 55, Issue 24, Pages 12783-12790Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.6b02072
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Funding
- National Natural Science Foundation of China [21271178, 51472251]
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Visible-light-responsive photocatalytic materials have important applications. In this article, through inserting electropositive ion Ba2+ into the three-dimensional framework of ZnSe, a one-dimensional chalcogenide Ba2ZnSe3 has been obtained by traditional solid-state reaction. It crystallizes in orthorhombic centrosymmetric space group Pnma with unit cell parameters of a = 9.0744(2) angstrom, b = 4.4229(1) angstrom, c = 17.6308(4) angstrom, and Z = 4. Its structure features [ZnSe3](4-) anionic straight chains parallel to the b direction, which are further separated by Ba2+ cations filling in the cavities. On the basis of the UV-vis-NIR diffuse reflectance spectroscopy, Ba2ZnSe3 possesses a typical direct band gap of 2.75 eV, which is in good agreement with the electronic structure calculation. Moreover, Ba2ZnSe3 shows good-visible-light-responsive photocatalytic activity which are favorable for its application. and excellent thermal stability and cydability, which are favorable for its application.
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