Synthesis and Photoluminescence Mechanism of Porous WO3 and WO3/Fe2W3O12 Composite Materials

被引：4
作者：
Liu, Shulong [1 ]
Gao, Chao [1 ]
Liu, Yi [1 ]
Yan, Ping [2 ]
Zhu, Mingcheng [1 ]
机构：
[1] Huaibei Normal Univ, Sch Phys & Elect Informat, Informat Coll, Huaibei 235000, Anhui, Peoples R China
[2] Huaibei Normal Univ, Sch Life Sci, Huaibei 235000, Anhui, Peoples R China
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2021年 / 95卷 / 13期
关键词：
WO3; Fe2W3O12; composite material; emission intensity; band arrangement; HYDROTHERMAL SYNTHESIS; GROWTH-MECHANISM; NANOPARTICLES; CAWO4; DEGRADATION; AWO(4);
D O I：
10.1134/S0036024421130124
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 E-g 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.
引用
收藏
页码：2699 / 2707
页数：9
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