Abstract
A simple template-directed synthesis method was employed to prepare WO3, Fe2W3O12, 5% WO3/Fe2W3O12, 10% WO3/Fe2W3O12, and 15% WO3/Fe2W3O12 composite materials. The WO3/Fe2W3O12 composite material is mainly composed of cubic WO3 (JCPDF card no. 43-1035) and tetragonal Fe2W3O12 (JCPDF card no. 24-0538) and does not contain any other impurities. The WO3/Fe2W3O12 composite material exhibits porous structure and the pore size and specific surface area decreases with the increase in WO3 content. The Eg values of WO3, Fe2W3O12, 5% WO3/Fe2W3O12, 10% WO3/Fe2W3O12, and 15% WO3/Fe2W3O12 composite materials are 2.08, 1.30, 1.63, 2.38, and 1.51 eV, respectively. The 15% WO3/Fe2W3O12 composite materials exhibits the highest emission intensity. This result is inconsistent with the results previously reported, possibly because WO3 and Fe2W3O12 form a type II band arrangement.
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Funding
This work was supported by Natural Science Research Project of Universities in Anhui Province (KJ2020A1194, KJ2020B08, KJ2020B27), Quality Engineering (2020xkcsz010, 2020sxzx47, 2020xskt435, 202010373023, 202010373062), Industry & University Cooperative Education Project of Ministry of Education (202101154009).
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Liu, S., Gao, C., Liu, Y. et al. Synthesis and Photoluminescence Mechanism of Porous WO3 and WO3/Fe2W3O12 Composite Materials. Russ. J. Phys. Chem. 95, 2699–2707 (2021). https://doi.org/10.1134/S0036024421130124
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DOI: https://doi.org/10.1134/S0036024421130124