The D-glucose serves to reduce the silver from Ag1- to Ag1+. The sodium citrate first reduces Ag1+ to Ag, and then functions to bind with the particle surface of silver nitrate particles to allow them to interact. Finally, silver nitrate can aggregate.
The silver nitrate combined with D-glucose, sodium citrate, and heat forms an aggregate. The citrate binds with the particle coating and dispels the repulsion between silver nitrate nanoparticles. The nanoparticles then form an aggregate-- a loose group of particles.
Batch C was resistant to aggregate formation. It did not include glucose, which reduces the silver nitrate and allows it to react with sodium citrate. The data from these batches was not within the wavelength window of silver nanoparticles
The silver nitrate combined with D-glucose, sodium citrate, and heat forms an aggregate. The citrate binds with the particle coating and dispels the repulsion between silver nitrate nanoparticles. The nanoparticles then form an aggregate-- a loose group of particles.
Batch C was resistant to aggregate formation. It did not include glucose, which reduces the silver nitrate and allows it to react with sodium citrate. The data from these batches was not within the wavelength window of silver nanoparticles