Morphology-controlled WO3-x homojunction: hydrothermal synthesis, adsorption properties, and visible-light-driven photocatalytic and chromic properties

doi:10.1088/1361-6528/ab2a38

	Morphology-controlled WO3-x homojunction: hydrothermal synthesis, adsorption properties, and visible-light-driven photocatalytic and chromic properties
	Li, Ning; Chang, Tianci; Gao, Hang; Gao, Xueyun; Ge, Lei
刊名	NANOTECHNOLOGY
	2019-10-11
卷号	30 期号:41
关键词	hydrothermal method WO3-x homojunction chromism adsorption ability visible-light-driven photodegradation efficiency
ISSN号	0957-4484
DOI	10.1088/1361-6528/ab2a38
文献子类	Article
英文摘要	In this paper, a facile one-step hydrothermal method for the synthesis of crystalline-amorphous WO3-x core-shell nanopowders (nanoparticles, nanorods, and nanowires) is reported. The core-shell structure, the size and the morphology of the core, and the shell ratio can be controlled by pH, the content of oxalic acid and the content of ammonium tungstate. A possible formation and growth mechanism is proposed. It was found that oxalic acid determines the crystalline-amorphous core-shell structure and NH4+/OH- plays a key role in retarding the crystal growth along the [001] axis. The synthesis method may introduce a new way to monitor and tune the stoichiometric and substoichiometric composition of semiconductor oxide nanostructure. The homojunction exhibits an enhanced adsorption ability, obvious visible photocatalytic efficiency, and good photochromic and chemochromic properties.
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	IOP PUBLISHING LTD
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26779]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Li, Ning,Chang, Tianci,Gao, Hang,et al. Morphology-controlled WO3-x homojunction: hydrothermal synthesis, adsorption properties, and visible-light-driven photocatalytic and chromic properties[J]. NANOTECHNOLOGY,2019,30(41).
APA	Li, Ning,Chang, Tianci,Gao, Hang,Gao, Xueyun,&Ge, Lei.(2019).Morphology-controlled WO3-x homojunction: hydrothermal synthesis, adsorption properties, and visible-light-driven photocatalytic and chromic properties.NANOTECHNOLOGY,30(41).
MLA	Li, Ning,et al."Morphology-controlled WO3-x homojunction: hydrothermal synthesis, adsorption properties, and visible-light-driven photocatalytic and chromic properties".NANOTECHNOLOGY 30.41(2019).