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Journal of Nanoparticle Research
Erschienen in: Journal of Nanoparticle Research 6/2012

01.06.2012 | Research Paper

Preparation and characterization of silver nanoparticles immobilized on multi-walled carbon nanotubes by poly(dopamine) functionalization

verfasst von: Yi Jiang, Yonglai Lu, Liqun Zhang, Li Liu, Yajie Dai, Wencai Wang

Erschienen in: Journal of Nanoparticle Research | Ausgabe 6/2012

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Abstract

Multi-walled carbon nanotubes (MWNTs) functionalized with poly(dopamine) (PDA) were found to cause the immobilization of silver nanoparticles on the surface. The PDA functional layer not only improved the dispersion of MWNTs in aqueous solution, but also was used as a platform for subsequent silver nanoparticle immobilization. The surface morphology of the functionalized MWNTs was observed by high-resolution transmission electron microscopy. The results showed that PDA layers with controlled thickness on the nanometer scale were formed on MWNT surfaces by in situ spontaneous oxidative polymerization of dopamine, and that high-density of homogeneously dispersed spherical silver nanoparticles with sizes of 3–4 nm were immobilized on their outer surface. The space between spherical silver nanoparticles is less than 10 nm. Both X-ray photoelectron spectroscopy and X-ray diffraction results showed that the Ag nanoparticles on the surface of hybrids exist in the zero valent state.
Vorheriger Artikel Synthesis, optical, and photocatalytic properties of a new visible-light-active ZnFe2O4–TiO2 nanocomposite material
Nächster Artikel Functionalization of graphene and grafting of temperature-responsive surfaces from graphene by ATRP “on water”

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Metadaten
Titel
Preparation and characterization of silver nanoparticles immobilized on multi-walled carbon nanotubes by poly(dopamine) functionalization
verfasst von
Yi Jiang
Yonglai Lu
Liqun Zhang
Li Liu
Yajie Dai
Wencai Wang
Publikationsdatum
01.06.2012
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 6/2012
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-012-0938-x

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