Volume 126, Issue 18 pp. 4702-4705
Zuschrift

Peapod-Type Nanocomposites through the In Situ Growth of Gold Nanoparticles within Preformed Hexaniobate Nanoscrolls

Dr. Shiva Adireddy

Dr. Shiva Adireddy

Department of Chemistry and AMRI, University of New Orleans, New Orleans, LA 70148 (USA)

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Cecilia E. Carbo

Cecilia E. Carbo

Department of Chemistry and AMRI, University of New Orleans, New Orleans, LA 70148 (USA)

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Taha Rostamzadeh

Taha Rostamzadeh

Department of Chemistry and AMRI, University of New Orleans, New Orleans, LA 70148 (USA)

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Dr. Jose M. Vargas

Dr. Jose M. Vargas

Department of Physics and AMRI, University of New Orleans, New Orleans, LA 70148 (USA)

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Prof. Leonard Spinu

Prof. Leonard Spinu

Department of Physics and AMRI, University of New Orleans, New Orleans, LA 70148 (USA)

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Prof. John B. Wiley

Corresponding Author

Prof. John B. Wiley

Department of Chemistry and AMRI, University of New Orleans, New Orleans, LA 70148 (USA)

Department of Chemistry and AMRI, University of New Orleans, New Orleans, LA 70148 (USA)===Search for more papers by this author
First published: 12 March 2014
Citations: 5

This work was supported in part by the Louisiana Board of Regents Post-Katrina Support Fund Initiative (PKSFI, LEQSF(2007-12)-ENH-PKSFI-PRS-04). C.E.C.’s REU summer support through NSF DMR-1262904 is gratefully acknowledged.

Abstract

A facile in situ method to grow Au nanoparticles (NPs) in hexaniobate nanoscrolls is applied to the formation of plasmonic Au@hexaniobate and bifunctional plasmonic-magnetic Au-Fe3O4@hexaniobate nanopeapods (NPPs). Utilizing a solvothermal treatment, rigid multiwalled hexaniobate nanoscrolls and partially filled Fe3O4@hexaniobate NPPs were first fabricated. These nanostructures were then used as templates for the controlled in situ growth of Au NPs. The resulting peapod structures exhibited high filling fractions and long-range uniformity. Optical measurements showed a progressive red shift in plasmonic behavior between Au NPs, Au NPPs, and Au-Fe3O4 NPPs; magnetic studies found that the addition of gold in the Fe3O4@hexaniobate NPPs reduced interparticle coupling effects. The development of this approach allows for the routine bulk preparation of noble-metal-containing bifunctional nanopeapod materials.

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