Preparation And The Spectral Properties Of Silver Nanoparticles And Their Analytical Application

Partâ… IntroductionIntroduced making method and idenfication of the silver nanoparticles and the silver nanowires, and its application in the bio-chemical analytical, especially sensor, silver dyeing etc.Partâ…¡Preparation of Silver nanoparticles modified by dodecyl benzene sulfate by microwave method and the spectral properties of interaction between it and cationic surfactantGray silver nanoparticles has been prepared by a microwave high-pressure method using alcohol reduction of silver nitrate in alkaline condition. In the presence of sodium dodecyl benzene sulfate, silver nitrate was reduced by alcohol, and good stabile green or yellow silver nanoparticles were prepared. The average diameters are 41.2nm and 71.3nm, respectively. Gray and yellow silver nanoparticles all have an absorption peak at 410nm. Green silver nanoparticles shows two absorption peaks at 410nm and 670 nm. Yellow nanoparticles exhibits two resonance scattering peaks at 440nm and 465nm. The green one has three resonance scattering peaks at 420nm, 465nm and 585nm. Gray nanoparticles shows one stronger resonance scattering at...