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Hollow Au-Cu2O-Core-Shell Nanoparticles with Geometry-Dependent Optical Properties as Efficient Plasmonic Photocatalysts under Visible Light
Lu B; Liu AP; Wu HP; Shen QP; Zhao TY; Wang JS; Liu, AP (reprint author), Zhejiang Sci Tech Univ, Ctr Optoelect Mat & Devices, Hangzhou 310018, Zhejiang, Peoples R China.; Liu, AP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Source PublicationLANGMUIR
2016
Volume32Issue:12Pages:3085-3094
ISSN0743-7463
AbstractHollow Au-Cu2O core shell nanoparticles were synthesized by using hollow gold nanoparticles (HGNs) as the plasmon-tailorable cores to direct epitaxial growth of Cu2O nanoshells. The effective geometry control of hollow Au-Cu2O core shell nanoparticles was achieved through adjusting the HGN core sizes, Cu2O shell thicknesses, and morphologies related to structure-directing agents. The morphology-dependent plasmonic band red-shifts across the visible and near-infrared spectral regions were observed from experimental extinction spectra and theoretical simulation based on the finite-difference time-domain method. Moreover, the hollow Au-Cu2O core shell nanoparticles with synergistic optical properties exhibited higher photocatalytic performance in the photodegradation of methyl orange when compared to pristine Cu2O and solid Au-Cu2O core shell nanoparticles under visible-light irradiation due to the efficient photoinduced charge separation, which could mainly be attributed to the Schottky barrier and plasmon-induced resonant energy transfer. Such optical tunability achieved through the hollow cores and structure-directed shells is of benefit to the performance optimization of metal semiconductor nanoparticles for photonic, electronic, and photocatalytic applications.
DOI10.1021/acs.langmuir.6b00331
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000373247400026
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
Funding OrganizationThis work was supported by the National Natural Science Foundation of China (Nos. 51272237, 51175472, 11372280, and 11472191), the Zhejiang Provincial Natural Science Foundation of China (No. LY16E020011), the 521 Talent Project of Zhejiang Sci-Tech University, the Program for Innovative Research Team of Zhejiang Sci-Tech University, and the Opening Fund of State Key Laboratory of Nonlinear Mechanics.
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59554
Collection非线性力学国家重点实验室
Corresponding AuthorLiu, AP (reprint author), Zhejiang Sci Tech Univ, Ctr Optoelect Mat & Devices, Hangzhou 310018, Zhejiang, Peoples R China.; Liu, AP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Lu B,Liu AP,Wu HP,et al. Hollow Au-Cu2O-Core-Shell Nanoparticles with Geometry-Dependent Optical Properties as Efficient Plasmonic Photocatalysts under Visible Light[J]. LANGMUIR,2016,32(12):3085-3094.
APA Lu B.,Liu AP.,Wu HP.,Shen QP.,Zhao TY.,...&Liu, AP .(2016).Hollow Au-Cu2O-Core-Shell Nanoparticles with Geometry-Dependent Optical Properties as Efficient Plasmonic Photocatalysts under Visible Light.LANGMUIR,32(12),3085-3094.
MLA Lu B,et al."Hollow Au-Cu2O-Core-Shell Nanoparticles with Geometry-Dependent Optical Properties as Efficient Plasmonic Photocatalysts under Visible Light".LANGMUIR 32.12(2016):3085-3094.
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