[A comparison of SERS of positive and negative nano-silver adsorbing cation and anion molecule].
A study on the negative charge colloid of nano-silver particles with anion and cation molecules has been done. The results of the experiment show that the negative charge colloid of nano-silver particle has no SERS effect when anion molecule adsorbed on its surface. While the cation molecule in adsorbed on its surface the SERS effect is enhanced. The SERS effects are just opposite when the two molecules separately adsorbed on the surface of the positive colloid of nano-silver particles. The paper hypothesizes that strong SERS effect can be got by using proper colloid of nano-silver particles. It is practical to develop the use of SERS.
Si
M
M
Department of Physics, Chuxiong Teachers College, 675000 Chuxiong.
Zhang
P
P
D000327:Adsorption; D000838:Anions; D002412:Cations; D003102:Colloids; D036103:Nanotechnology; D009942:Organometallic Compounds / Q000737:chemistry; D010316:Particle Size; D012834:Silver / Q000737:chemistry*; D018030:Silver Compounds / Q000737:chemistry*; D013059:Spectrum Analysis, Raman
D000838:Anions; D002412:Cations; D003102:Colloids; D009942:Organometallic Compounds; D018030:Silver Compounds; D012834:Silver