Gold and gold-palladium alloy nanoparticles on heterostructured TiO2   nanobelts as plasmonic photocatalysts for benzyl alcohol oxidation

doi:10.1039/c4nr05905k

CORC > 北京大学 > 化学与分子工程学院

	Gold and gold-palladium alloy nanoparticles on heterostructured TiO2 nanobelts as plasmonic photocatalysts for benzyl alcohol oxidation
	Jiang, Tongtong ; Jia, Chuancheng ; Zhang, Lanchun ; He, Shuren ; Sang, Yuanhua ; Li, Haidong ; Li, Yanqing ; Xu, Xiaohong ; Liu, Hong
刊名	nanoscale
	2015
关键词	VISIBLE-LIGHT IRRADIATION ACTIVE HETEROGENEOUS CATALYST AEROBIC OXIDATION CO OXIDATION CORRESPONDING ALDEHYDES SYNERGISTIC CATALYSIS SELECTIVE OXIDATION PROPENE EPOXIDATION OXYGEN ACTIVATION ORGANIC-SYNTHESIS
DOI	10.1039/c4nr05905k
英文摘要	Plasmonic photocatalysts composed of Au and bimetallic Au-Pd alloy nanoparticles (NPs) on one-dimensional TiO2 nanobelts (TiO2-NBs) were used for the aerobic oxidation of benzyl alcohol under visible light irradiation. Remarkable light-promoted activity was observed for the as-synthesized M/TiO2-NB (M = Au, Au-Pd) nanostructures based on the TiO2(B)/anatase heterostructured nanobelt. The difference in band structure and the well matched interface between the TiO2(B) and anatase phases, coupled with the one-dimensional nanostructure, enable an enhanced charge transfer within the heterostructured nanobelt. This inter-phase charge transfer greatly facilitates the flow of hot electrons from the metal NPs to TiO2 and promotes benzyl alcohol oxidation. This efficient electron transfer was identified by the much higher photocurrent response measured for the Au/TiO2-NB nanostructure with the TiO2(B)/anatase heterojunction than those with either of the single phases under visible light irradiation. Alloying Au with Pd in Au-Pd/TiO2-NB results in a significant improvement in the visible light-promoted activity compared to the monometallic Au/TiO2-NB sample. It is supposed that the plasmon-mediated charge distribution within the alloy NPs is mainly responsible for the enhanced photocatalytic activity of the bimetallic nanostructures.; Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; SCI(E); EI; 2; ARTICLE; xhxu@sdu.edu.cn; hongliu@sdu.edu.cn; 1; 209-217; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/206695]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Jiang, Tongtong,Jia, Chuancheng,Zhang, Lanchun,et al. Gold and gold-palladium alloy nanoparticles on heterostructured TiO2 nanobelts as plasmonic photocatalysts for benzyl alcohol oxidation[J]. nanoscale,2015.
APA	Jiang, Tongtong.,Jia, Chuancheng.,Zhang, Lanchun.,He, Shuren.,Sang, Yuanhua.,...&Liu, Hong.(2015).Gold and gold-palladium alloy nanoparticles on heterostructured TiO2 nanobelts as plasmonic photocatalysts for benzyl alcohol oxidation.nanoscale.
MLA	Jiang, Tongtong,et al."Gold and gold-palladium alloy nanoparticles on heterostructured TiO2 nanobelts as plasmonic photocatalysts for benzyl alcohol oxidation".nanoscale (2015).