Chains composed of nanosize metal particles and identifying the factors driving their formation

Abstract

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The application of zero-valent iron nanoparticles for the remediation of a uranium-contaminated waste effluent

“…Prior to the addition of the Fe nanoparticles to the effluent solutions, FIB imaging showed individual particles to be roughly spherical and loosely aggregated into chains when dried, a feature attributed to their magnetic cores [51]. XRD analysis indicated the presence of poorly crystalline/amorphous metallic iron.…”

Reductive dechlorination of γ-hexachlorocyclohexane using Fe–Pd bimetallic nanoparticles

“…The spherical nanoparticles, 25-40 nm in diameter are connected in chains of beads. This observation is due to the magnetic and electronic interactions between the metals [25]. The small size of the nanoparticles can be explained by the low molarity of Fe 2+ , together with the excess of borohydride used in the synthesizing process.…”

Application of stabilized zero valent iron nanoparticles for immobilization of lead in three contrasting spiked soils

“…It can be observed that the ZVINs were stabilized by ascorbic acid as a reducing agent within the synthesis procedure under aerobic conditions. Chain structure formations have been attributed to the magnetic interactions between the adjacent metal particles [42]. Furthermore, there was an apparent separation between ZVINs with little aggregation.…”