Au-ZnO hybrid nanoflowers, nanomultipods and nanopyramids: one-pot reaction synthesis and photocatalytic properties

CORC > 厦门大学 > 材料学院－已发表论文

	Au-ZnO hybrid nanoflowers, nanomultipods and nanopyramids: one-pot reaction synthesis and photocatalytic properties
	Chen, Yuanzhi ; Zeng, Deqian ; Zhang, Kun ; Lu, Aolin ; Wang, Laisen ; Peng, Dong-Liang ; Chen YZ(陈远志) ; Wang LS(王来森) ; Peng DL(彭栋梁)
刊名	http://dx.doi.org/10.1039/c3nr04558g
	2014
关键词	CORE-SHELL NANOPARTICLES PROTEIN-DETECTION RAMAN-SCATTERING NANOCRYSTALS DEGRADATION NANOCOMPOSITES WATER PHOTOLUMINESCENCE HETEROSTRUCTURE NANOSTRUCTURES
英文摘要	Fundamental Research Funds for the Central Universities of China [2011121003]; National Basic Research Program of China [2012CB933103]; National Outstanding Youth Science Foundation of China [50825101]; National Natural Science Foundation of China [51171157, 51171158]; The preparation of noble metal-semiconductor hybrid nanocrystals with controlled morphologies has received intensive interest in recent years. In this study, facile one-pot reactions have been developed for the synthesis of Au-ZnO hybrid nanocrystals with different interesting morphologies, including petal-like and urchin-like nanoflowers, nanomultipods and nanopyramids. In the synthesis strategy, oleylamine-containing solution serves as the reaction medium, and the in situ generated Au seeds play an important role in the subsequently induced growth of ZnO nanocrystals. With the aid of several surfactants, hybrid nanocrystals with different morphologies that have considerable influences on their optical and photocatalytic activities are readily achieved. Through high-resolution transmission electron microscopy measurements, an observed common orientation relationship between ZnO and Au is that ZnO nanocrystals prefer to grow with their polar {001} facets on the {111} facets of Au nanocrystals, and well-defined interfaces are evident. Surface plasmon resonance bands of Au with different positions are observed in the UV-vis spectra, and the UV and visible emissions of ZnO are found to be dramatically reduced. Finally, the as-prepared Au-ZnO nanocrystals exhibit excellent photocatalytic activity for the photodegradation of rhodamine B compared with pure ZnO nanocrystals. The Au-ZnO hybrid nanopyramids show the highest catalytic efficiency, which is correlated with the exposed crystal facets, crystallinity and the formation of hybrid nanostructures. The as-prepared Au-ZnO hybrid nanocrystals are expected to find diverse potential applications in the fields such as photocatalysis, solar energy conversion, sensing and biological detection.
语种	英语
出版者	ROYAL SOC CHEMISTRY
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87380]
专题	材料学院－已发表论文
推荐引用方式 GB/T 7714	Chen, Yuanzhi,Zeng, Deqian,Zhang, Kun,et al. Au-ZnO hybrid nanoflowers, nanomultipods and nanopyramids: one-pot reaction synthesis and photocatalytic properties[J]. http://dx.doi.org/10.1039/c3nr04558g,2014.
APA	Chen, Yuanzhi.,Zeng, Deqian.,Zhang, Kun.,Lu, Aolin.,Wang, Laisen.,...&彭栋梁.(2014).Au-ZnO hybrid nanoflowers, nanomultipods and nanopyramids: one-pot reaction synthesis and photocatalytic properties.http://dx.doi.org/10.1039/c3nr04558g.
MLA	Chen, Yuanzhi,et al."Au-ZnO hybrid nanoflowers, nanomultipods and nanopyramids: one-pot reaction synthesis and photocatalytic properties".http://dx.doi.org/10.1039/c3nr04558g (2014).