Au nanobipyramids with Pt decoration enveloped in TiO2 nanoboxes for photocatalytic reactions

doi:10.1039/d1na00092f

	Au nanobipyramids with Pt decoration enveloped in TiO2 nanoboxes for photocatalytic reactions
	Gao, Weijian 3; Kan, Caixia 1,3,4; Ke, Shanlin 3; Yun, Qinru 3; Zhu, Xingzhong 3; Zhu, Xiaoguang 2
刊名	NANOSCALE ADVANCES
	2021-06-01
ISSN号	2516-0230
DOI	10.1039/d1na00092f
通讯作者	Kan, Caixia(cxkan@nuaa.edu.cn)
英文摘要	Noble metal nanocrystals and core-shell nanocomposites have attracted particular interest due to their unique optical properties originating from surface plasmon resonance (SPR) and wide applications related to the SPR effect. In this work, we designed and fabricated a new Au-Pt@TiO2 nanocomposite, in which Au nanobipyramids (AuNBPs) decorated with platinum (Pt) clusters were enveloped in mesoporous TiO2 nanoboxes with nanocavities. AuNBPs provide strong SPR absorption and localized field enhancement restricted to the cavities of TiO2 nanoboxes. The Pt nanoclusters decorated on the surface of AuNBPs can effectively modulate the charge movement and energy transfer in the photocatalytic process. The enhanced electric field provides a local thermal effect for the photocatalytic reaction and promotes the injection process of hot electrons which facilitates carrier separation. The nanoboxes with nanocavities can effectively manage the usage of localized energy and provide space for reaction. Under the cooperative effects, the photocatalytic performance was remarkably improved along with durability and stability. For the AuNBP-Pt@TiO2 nanoboxes, the rhodamine-B degradation efficiency was similar to 6.5 times that of AuNBP@TiO2 nanoboxes. The mechanism of the photocatalysis process was proposed based on experimental results and simulations. Benefiting from the excellent structure and properties, the obtained nanostructure is a promising candidate in the fields of pollutant degradation and chemical reaction catalysis.
资助项目	National Natural Science Foundation of China[1774171] ; National Natural Science Foundation of China[11974182] ; National Natural Science Foundation of China[21805137] ; National Natural Science Foundation of China[11874220] ; Fundamental Research Funds for the Central Universities[NT2020019] ; Open Fund of Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education[INMD-2020M03] ; Priority Academic Program Development of Jiangsu Higher Education Institutions[KYZZ16-0165]
WOS关键词	RESONANCE ENERGY-TRANSFER ; CORE-SHELL NANOPARTICLES ; PLASMON RESONANCE ; LIGHT ; NANOSTRUCTURES ; SOLAR ; OXIDATION ; GROWTH ; METAL ; MECHANISMS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000664142900001
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Open Fund of Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education ; Priority Academic Program Development of Jiangsu Higher Education Institutions
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123920]
专题	中国科学院合肥物质科学研究院
通讯作者	Kan, Caixia
作者单位	1.Minist Educ, Key Lab Intelligent Nano Mat & Devices, Nanjing 210016, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China 3.Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing 210016, Peoples R China 4.Minist Indust & Informat Technol, Key Lab Aerosp Informat Mat & Phys, Nanjing 210016, Peoples R China
推荐引用方式 GB/T 7714	Gao, Weijian,Kan, Caixia,Ke, Shanlin,et al. Au nanobipyramids with Pt decoration enveloped in TiO2 nanoboxes for photocatalytic reactions[J]. NANOSCALE ADVANCES,2021.
APA	Gao, Weijian,Kan, Caixia,Ke, Shanlin,Yun, Qinru,Zhu, Xingzhong,&Zhu, Xiaoguang.(2021).Au nanobipyramids with Pt decoration enveloped in TiO2 nanoboxes for photocatalytic reactions.NANOSCALE ADVANCES.
MLA	Gao, Weijian,et al."Au nanobipyramids with Pt decoration enveloped in TiO2 nanoboxes for photocatalytic reactions".NANOSCALE ADVANCES (2021).