期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 770, 期 -, 页码 972-980出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.08.205
关键词
Ternary composite; CuO-ZnO; Hybrid nanocomposite; Gas sensor; Ethanol
资金
- National Natural Science Foundation of China [U1704146, U1704255]
- Natural Science Foundation of Henan Province of China [162300410113]
- Program for Science & Technology Innovation Talents in Universities of Henan Province [19HASTIT042]
- Research Foundation for Youth Scholars of Higher Education of Henan Province [2017GGJS053, 2016GGJS-040]
- Fundamental Research Funds for the Universities of Henan Province [NSFRF170201, NSFRF1606]
- Program for Innovative Research Team in University of Ministry of Education of China [IRT_16R22]
- Program for Innovative Research Team of Henan Polytechnic University [T2018-2]
- Foundation for Distinguished Young Scientists of Henan Polytechnic University [J2016-2, J2017-3]
ZnO and CuO have attracted considerable attention for their potential application in gas sensors. However, they also have some disadvantages, such as high operating temperature and poor sensitivity. Graphitic carbon nitride (g-C3N4) has been widely used as metal-free catalyst and catalyst support in gas sensing field due to its unique chemical stability and excellent substrate characteristics. In this study, a one-step hydrothermal method was developed for the preparation of a CuO-ZnO/g-C3N4 ternary composite. The as-prepared samples were characterized by using the XRD, SEM, TEM, FTIR, UV-vis and XPS techniques. The analysis results indicated that the ternary composite was synthesized successfully. The morphological analyses demonstrated that the flake-like CuO and ZnO nanoparticles were wrapped and connected by g-C3N4 nanosheet. The as-prepared CuO-ZnO/g-C3N4 exhibited obviously enhanced sensing properties to ethanol, which were 1.34 times and 2.17 times higher than that of CuO-ZnO and CuO, respectively. The improving gas sensing properties were related to the valid p-n junctions of CuO-ZnO and excellent substrate effect of g-C3N4 nanosheet. (C) 2018 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据