Synthesis and Characterization of Silver Nanoparticle‐Multiwalled Carbon Nanotube Composites

Abstract

Multiwalled carbon nanotubes (MWCNTs) grown by spray pyrolysis have been decorated with silver nanoparticles prepared via the silver mirror reaction. Good dispersion of silver nanostructures was obtained on the surface of MWCNTs, resulting in an efficient and simple wet chemistry method for increasing the reactivity of the carbon nanotubes surfaces. High-resolution transmission electron microscopy showed the orientations of the crystallography planes of the anchored silver nanoparticles and revealed their size distribution. Raman spectroscopy results confirm that the composite material preserves the integrity of the MWCNTs. Scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy were also employed for sample characterization.

Exploring the Effect of Operational Factors and Characterization Imperative to the Synthesis of Silver Nanoparticles

“…However, there was no evident relationship between the oxygen and the silver contents because the O/ Carbon atomic rate did not change significantly between the different silver concentrations. Furthermore, the spectrum of the Ag 3d core level of the Ag-decorated MWCNTs, confirmed the presence of metallic silver because the 3d5/2 component occurred at a binding energy of 368.3 eV, which is characteristic of the metallic Ag (0) oxidation state [82].…”

“…Several investigations have reported the use XPS technique to characterize the surface chemistry of silver nanoparticles. Larrude et al [82] characterized silver-multiwalled carbon nanotubes (Ag-MWCNTs) nanocomposite using the XPS technique. Their report showed spectrum revealing the dominance of silver and carbon, with small amounts of sodium and sulfur in the sample.…”

Fabrication of polysulfone nanocomposite membranes with silver‐doped carbon nanotubes and their antifouling performance

“…The ratio between the intensities of the D and G bands ( I D / I G ) represent the induced defects and disorder in the CNTs due to nanotube processing. The bare‐CNT spectrum exhibited a low I D / I G value (∼0.3); this confirmed good quality nanotubes . The Raman spectra of the CNT‐COOHs and Ag‐CNTs showed an increased I D / I G value (∼0.7); this confirmed increased defects and disorder in the CNTs due to functionalization or decoration by Ag nanoparticles.…”

Enhanced Structural, Thermal, and Electrical Properties of Multiwalled Carbon Nanotubes Hybridized with Silver Nanoparticles

“…Metal nanoparticles (NP) are an emerging class of compounds with unique properties and they are remarkably different compared to their bulk materials. Examples of metal NP include gold (Au), palladium (Pd), platinum (Pt), and silver (Ag) NP [5]. Detailed studies have been carried out in recent years to integrate the properties of CNT and NP due to their potential applications.…”