纳米Ag粒子与CN^-反应的机制研究

Study on the Reaction Mechanism of Silver Nanoparticles with Cyanide

摘要:

利用UV-辐照光化学还原法制备了平均粒径为20nm的黄色胶体银溶液，借助于银粒子的表面等离子体共振（SPR）光谱，研究了Ag粒子与CN^-反应的动力学特性，探讨了分子O2参与反应过程的机制和OH^-离子的影响，测定了Ag粒子与CN^-反应形成络合物的配位数。

Abstract:

The monodisperse colloid silver with a 20 nm average diameter was prepared by UV-irradiation photochemical method. The kinetic characteristic on the reaction of Ag nanoparticles with cyanide was studied based on the surface plasma resonance (SPR) spectrum, and the mechanisms of molecule O2 participating in the reaction and the influence of OH- ions on the reaction were discussed. The coordination number of forming cyanocomplexes was also determined