Silver Nanoparticles: Synthesis, Characterization and Applications

The results showed that AgNPimpregnated ceramic water filters are more appropriate for this application due to the lesser amount of silver desorbed compared with silver nitrate-treated filters without disturbing the water chemistry conditions and performance of the filters

Neelu Chouhan

2018

Scholarcy highlights

  • The novel properties of nano-objects occur due to the changes in size and scale
  • Due to the reduction in the spatial dimension, confinement of these quasi particles in a particular crystallographic direction within a structure generally leads to changes in physical properties of the system in that direction
  • Because of the electrons that cannot move freely at nanolevel and their motion became restricted, this confinement at the nanoscale resulted in the changes in electrical properties, such as the bulk conductor/semiconductor materials behaving as superconductors or conductors at nanoscale
  • Metal nanoparticles are produced by physical methods like ion sputtering or pulsed laser ablation and chemical methods such as reduction, solvothermal synthesis, hydrothermal, sol-gel methods, and so on
  • Due to the broad range of inelastic interactions of the high energy electrons with the specimen atoms, ranging from phonon interactions to ionization processes, energy-loss spectroscopy and their combination with Transmission electron microscope offers the facility to map the elemental composition of a specimen for studying the physical and chemical properties of a wide range of biological and non-biological materials
  • The results showed that AgNPimpregnated ceramic water filters are more appropriate for this application due to the lesser amount of silver desorbed compared with silver nitrate-treated filters without disturbing the water chemistry conditions and performance of the filters
  • A typical example of the surface-enhanced Raman scattering is reflected by Figure 17, where the coupling effect still dominates the SERS and the flower-like silver mesoparticle dimer image with the large hot areas is ≈10 to 100 times greater than the individual mesoparticles

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