I experimented with loading metallic nanoparticles onto a substrate (for example, resin beads) at different mass ratios of precursor to substrate. After which, I precipitated the metal nanoparticles in situ by immersing in a solution. The final materials were then tested for leaching in DI water.
I expect that higher mass ratios may lead to more leaching of metal nanoparticles due to the greater amount of nanoparticles present. However, I found that lower mass ratios, leaching was higher. I am not sure if there is a plausible explanation for this, for example, higher mass ratios form larger nanoparticles, which may be more stable.
Any help would be appreciated.
Thank you!
Kendric Tee The term leaching is used in manufacturing when a reaction occurs. Your metals dissolve in distilled water. Of the metals, zinc, magnesium and alkali metals dissolve in water. Suppose that you have a ball-zinc ion complex on the surface of the ball. Then, when interacting with water, the reaction occurs
surface ball-Zn2 + + HOH = Zn2 + OH - +H+
This reaction is reversible. According to the law of mass action, the more complex there is on the surface of the balls, the less will be the dissolution of zinc ions bound into a complex in the form of single zinc ions in water.
Kendric Tee The term leaching is used in manufacturing when a reaction occurs. Your metals dissolve in distilled water. Of the metals, zinc, magnesium and alkali metals dissolve in water. Suppose that you have a ball-zinc ion complex on the surface of the ball. Then, when interacting with water, the reaction occurs
surface ball-Zn2 + + HOH = Zn2 + OH - +H+
This reaction is reversible. According to the law of mass action, the more complex there is on the surface of the balls, the less will be the dissolution of zinc ions bound into a complex in the form of single zinc ions in water.
higher mass ratios may lead to less stable particles accumalation or you will loose the particles back to the solution
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