Ag沉积的ZnO∶Cu纳米颗粒的制备及高效光催化研究

doi:10.11896/cldb.18100226

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Abstract Ag deposited ZnO∶Cu nanoparticles were prepared by polymer network gel method. XRD and SEM results revealed that the grain size of ZnO nanoparticles decreased but the dispersion of the particles was improved after Cu doping. XPS showed that Cu ions existed in the form of Cu²⁺ and Cu⁺ in samples. In conjunction with PL spectrum, the energy level transition between Cu⁺ and Cu²⁺ is considered to be an important factor in blue light emission. UV-vis spectrum evidenced that Cu doping significantly enhanced the absorption of visible light by Ag-ZnO composite system. The photocatalytic performance of the samples was tested by degrading methylene blue (MB) under the simulated sunlight and ultraviolet light respectively. Analysis suggests that the synergistic effect between Cu ions and Ag/ZnO heterojunction can promote the photocatalytic rea-ction. Compared to Ag-ZnO nanoparticles with 5mol% Cu, Ag-ZnO sample with trace doping of 0.2mol% Cu exhibited better photocatalytic activity due to its advantages in morphology, optical properties and other aspects.

Key words： Cu nanoparticles Ag/ZnO heterojunction polymer network gel method photocatalysis

Published: 15 January 2020

CLC number:

O614.24+

About author:: Kaiyi Luois a master student majoring in electronic functional materials at Southwest University for Natio-nalities. He is mainly engaged in the research of oxide functional materials;Ming Xureceived his Ph.D. degree in Condensed Physics from Institute of Physics (CAS) in 2000. He is currently a professor of physics in Southwest University for Nationalities. His research interests are photoelectric functional nanomaterials and devices.

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	LUO Kaiyi
	YUAN Huan
	LIU Yutong
	ZHANG Jiaxi
	ZHANG Qiuping
	WANG Xiaoyi
	HU Wenyu
	LI Jing
	XU Ming

Cite this article:

LUO Kaiyi,YUAN Huan,LIU Yutong, et al. Synthesis of Ag Deposited ZnO∶Cu Nanoparticles and Study of Their High Photocatalytic Performance[J]. Materials Reports, 2020, 34(4): 4013-4019.

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http://www.mater-rep.com/EN/10.11896/cldb.18100226 OR http://www.mater-rep.com/EN/Y2020/V34/I4/4013

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