Structural and Optical Properties of Ultra-thin g-C3N4 nanotubes based g-C3N4/Ag/Ag2CrO4 ternary composite photocatalyst with Z-scheme carrier transfer mechanism

doi:10.1016/j.optmat.2021.111608

	Structural and Optical Properties of Ultra-thin g-C3N4 nanotubes based g-C3N4/Ag/Ag2CrO4 ternary composite photocatalyst with Z-scheme carrier transfer mechanism
	Yu, Fucheng1 ; Cui, Junpeng 1; Zhou, Yadong 1; Li, Yuanmeng 1; Liu, Zhengyan 1; He, Ling1 ; Zhang, Jianbin1 ; Tang, Xianxi1 ; Liu, Yangshuo 2
	2021-11
发表期刊	OPTICAL MATERIALS
ISSN	0925-3467
卷号	121
摘要	Ultra-thin g-C3N4 nanotubes with a wall thickness of about 10 nm were prepared by calcining a supramolecular precursor synthesized from cyanuric acid, melamine and urea. After Ag nanoparticles were deposited on the surface of g-C3N4 nanotubes and partially oxidized to Ag2CrO4, a g-C3N4/Ag/Ag2CrO4 ternary nanocomposite was obtained. The structural, optical and electronic properties of the composite were investigated. Compared with pure g-C3N4 nanotubes and g-C3N4 nanotubes decorated with Ag nanoparticles, the photocatalytic performance of the ternary composite is much improved due to its large specific surface area and effective separation efficiency of photo-generated electron-hole pairs. Furthermore, the composite not only promotes the effective separation of photo-generated carriers, but also inhibits the photocorrosion of its Ag2CrO4 component. A Z-scheme photo-generated carrier transfer mechanism with strong redox ability between the components in the g-C3N4/Ag/Ag2CrO4 ternary composite is confirmed by constructing the band structure of the composite. The high photocatalytic degradation performance of organic pollutants after several cycle tests makes it possible to be applied in practice.
关键词	g-C3N4 nanotubes Ag2CrO4 Ag nanoparticles decoration Heterojunction Photocatalysis
DOI	10.1016/j.optmat.2021.111608
收录类别	SCIE
语种	英语
WOS研究方向	Materials Science ; Optics
WOS类目	Materials Science, Multidisciplinary ; Optics
WOS记录号	WOS:000705869800005
出版者	ELSEVIER
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150095
专题	材料科学与工程学院土木工程学院
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 2.Wuhan Text Univ, Hubei Key Lab Biomass Fibers & Ecodyeing & Finish, Wuhan 430073, Peoples R China
第一作者单位	材料科学与工程学院
第一作者的第一单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Yu, Fucheng,Cui, Junpeng,Zhou, Yadong,et al. Structural and Optical Properties of Ultra-thin g-C3N4 nanotubes based g-C3N4/Ag/Ag2CrO4 ternary composite photocatalyst with Z-scheme carrier transfer mechanism[J]. OPTICAL MATERIALS,2021,121.
APA	Yu, Fucheng.,Cui, Junpeng.,Zhou, Yadong.,Li, Yuanmeng.,Liu, Zhengyan.,...&Liu, Yangshuo.(2021).Structural and Optical Properties of Ultra-thin g-C3N4 nanotubes based g-C3N4/Ag/Ag2CrO4 ternary composite photocatalyst with Z-scheme carrier transfer mechanism.OPTICAL MATERIALS,121.
MLA	Yu, Fucheng,et al."Structural and Optical Properties of Ultra-thin g-C3N4 nanotubes based g-C3N4/Ag/Ag2CrO4 ternary composite photocatalyst with Z-scheme carrier transfer mechanism".OPTICAL MATERIALS 121(2021).