Hierarchical Fe2O3/Bi2WO6 nanoplates with enhanced xylene sensing performance

被引：0
|
作者：
Zexin Lin
Jingming Gong
Ping Fu
机构：
[1] Central China Normal University,Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry
[2] Wuhan Institute of Technology,Hubei Key Laboratory of Plasma Chemistry and Advanced Materials
来源：
Journal of Materials Science: Materials in Electronics | 2017年 / 28卷
关键词：
Optimum Operating Temperature; Al2O3 Tube; Pure Bi2WO6; Bi2WO6 Sample; Ionize Oxygen Species;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Erythrocyte-like hierarchical α-Fe2O3/Bi2WO6 nanocomposites were synthesized by a simple and convenient hydrothermal method. The composites were assembled from α-Fe2O3/Bi2WO6 nanoplates. The structures of α-Fe2O3/Bi2WO6 nanocomposites were characterized by XRD, TEM, BET and gas sensing properties toward xylene were investigated in detailed. The sensors based on self-assembled α-Fe2O3/Bi2WO6 nanoplates show much enhanced sensing performances to xylene than that of pure Bi2WO6. The sensing performance using 10 wt% α-Fe2O3/Bi2WO6 reaches the highest response (S = 13.5) for the detection of 100 ppm xylene. Significant enhancement of the response and selectivity to xylene can be attributed to the formation of heterostructure and the synergistic catalytic activity from α-Fe2O3 and surface decorated WO42–.
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页码：4424 / 4430
页数：6
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