A novel heterojunction ZnO/CuO piezoelectric catalysts: fabrication, optical properties and piezoelectric catalytic activity for efficient degradation of methylene blue

doi:10.1007/s10854-022-07899-2

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	A novel heterojunction ZnO/CuO piezoelectric catalysts: fabrication, optical properties and piezoelectric catalytic activity for efficient degradation of methylene blue
	Wang, Shifa 2,3; Tang, Shengnan 2,3; Yang, Hua 4; Wang, Fei 5; Yu, Chuan 2,3; Gao, Huajing 2,3,4; Fang, Leiming 6; Sun, Guangzhuang 2,3; Yi, Zao 1; Li, Dengfeng 7
刊名	Journal of Materials Science: Materials in Electronics
	2022-03-01
卷号	33 期号:9 页码:7172-7190
关键词	Aromatic compounds Catalyst activity Copper Energy gap Heavy ions Heterojunctions II-VI semiconductors Methanol Molar ratio Morphology Optical properties Particle size Particle size analysis Phase structure Photoluminescence Piezoelectricity Surface morphology Zinc oxide Catalyst fabrication Characterization techniques Charge state Cu ions Methylene Blue Molar ratio Piezoelectric Polyacrylamide gel method Synthesised ]+ catalyst
ISSN号	0957-4522
DOI	10.1007/s10854-022-07899-2
英文摘要	The heterojunction ZnO/CuO piezoelectric catalysts with different Zn/Cu molar ratios were synthesized by one-step polyacrylamide gel method. Various characterization techniques have been used to explore the phase structure and purity, composition, morphology, charge state, electronic energy level, optical and photoluminescence properties and piezoelectric catalytic activity of the heterojunction ZnO/CuO piezoelectric catalysts. Phase structure and purity analysis shows that the intensity of CuO diffraction peak increases gradually with the increasing of the content of Cu ion. The surface morphology observation shows that the particle size of the heterojunction ZnO/CuO piezoelectric catalysts increases with the increasing of Cu content. The optical properties analysis shows that the optical band gap (Eg) of ZnO/CuO decreases with the increasing of the content of Cu ion. The photoluminescence spectra of the heterojunction ZnO/CuO piezoelectric catalysts show two emission peaks at 470 and 484 nm can be ascribed to the intrinsic defects such as oxygen vacancies and the near-band-edge emission, respectively. The heterojunction ZnO/CuO (nZn:nCu=9:1) piezoelectric catalysts exhibits highest degradation percentage of 71.06% and the optimum catalyst content, initial dye concentration, vibration time, ultrasonic power and frequency is 1 g/L, 5 mg/L, 140 min, 180 W and 40 kHz, respectively. This work will provide technical references for understanding the contribute between ZnO and CuO, and the coupling effect between piezoelectric and electrochemistry, and also explore to the development and applications of heterojunction piezoelectric catalysts. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
语种	英语
出版者	Springer
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157854]
专题	理学院
作者单位	1.Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang; 621010, China; 2.School of Electronic and Information Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing; 404000, China; 3.Chongqing Key Laboratory of Geological Environment Monitoring and Disaster Early-warning in Three Gorges Reservoir Area, Chongqing Three Gorges University, Wanzhou, Chongqing; 404000, China; 4.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 5.College of Materials Science and Engineering, Sichuan University, Chengdu; 610064, China; 6.Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Sichuan, Mianyang; 621900, China; 7.School of Science, Chongqing University of Posts and Telecommunications, Nan’an District, Chongqing; 400065, China
推荐引用方式 GB/T 7714	Wang, Shifa,Tang, Shengnan,Yang, Hua,et al. A novel heterojunction ZnO/CuO piezoelectric catalysts: fabrication, optical properties and piezoelectric catalytic activity for efficient degradation of methylene blue[J]. Journal of Materials Science: Materials in Electronics,2022,33(9):7172-7190.
APA	Wang, Shifa.,Tang, Shengnan.,Yang, Hua.,Wang, Fei.,Yu, Chuan.,...&Li, Dengfeng.(2022).A novel heterojunction ZnO/CuO piezoelectric catalysts: fabrication, optical properties and piezoelectric catalytic activity for efficient degradation of methylene blue.Journal of Materials Science: Materials in Electronics,33(9),7172-7190.
MLA	Wang, Shifa,et al."A novel heterojunction ZnO/CuO piezoelectric catalysts: fabrication, optical properties and piezoelectric catalytic activity for efficient degradation of methylene blue".Journal of Materials Science: Materials in Electronics 33.9(2022):7172-7190.