Particle Placement and Sheet Topological Control in the Fabrication of Ag–Hexaniobate Nanocomposites

Synthetic methods are demonstrated that allow for the fabrication of Ag–hexaniobate nanocomposites with directed nanoparticle (NP) placement and nanosheet morphological control. The solvothermal treatment of exfoliated nanosheets (NSs) in the presence of Ag NPs leads to a high yield of Ag nanocompos...

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Bibliographic Details
Published in:Langmuir 2015-01, Vol.31 (1), p.480-485
Main Authors: Adireddy, Shiva, Rostamzadeh, Taha, Carbo, Cecilia E., Wiley, John B.
Format: Article
Language:English
Subjects:
Metal Nanoparticles - chemistry
Models, Molecular
Molecular Conformation
Nanotechnology - methods
Niobium - chemistry
Optical Phenomena
Silver - chemistry
Surface-Active Agents - chemistry
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Summary:Synthetic methods are demonstrated that allow for the fabrication of Ag–hexaniobate nanocomposites with directed nanoparticle (NP) placement and nanosheet morphological control. The solvothermal treatment of exfoliated nanosheets (NSs) in the presence of Ag NPs leads to a high yield of Ag nanocomposites. This approach is quite flexible and, with control of time and temperature, can be used to produce nanocomposites with specific architectures; Ag NPs can be attached to nanosheets, attached to the surfaces of nanoscrolls, or at higher temperatures, captured within nanoscrolls to form nanopeapod (NPP) structures. The decorated nanosheets and nanoscrolls show surface plasmon resonance (SPR) maxima similar to that of free Ag NPs, while the Ag NPPs exhibit a red shift of about 10 nm.
ISSN:0743-7463
1520-5827
DOI:10.1021/la503775f