摘要
以表面增强喇曼散射力测量手段，详细讨论结晶紫分子在银镜表面上的吸附动力学．发现结晶紫的吸附是匀相的；表面形态的差异仅影响吸附速率常数，不改变多相因子（ｍ＝１）和脱附速率常数（ｋｄ＝０）．利用吸附等温线估算结晶紫分子在银镜上的吸附能，Ｕ≈５０ｋＪ／ｍｏｌ．不同银镜上ＣＶ分子的吸附能相同；但吸附位置密度有差异．银镜的增强效果与此有关．
Abstract The adsorption of CV molecules on the surface of silver mirrors was detail studied. It was found that the adsorption of CV molecules on silver surfaces is homogeneous. The surface differences of silver mirrors only affect the adsorption rate constant ka, not changing the heterogeneity parameter, m=1, and desorption rate constant, kd=0. The adsorption energy of CV molecules on the surface of silver mirror was estimated by the adsorption isotherm, U≈50kJ/mol. The adsorption energies are identical and the densities of adsorption sites are different for different mirrors. The densiy of adsorption sites affects enhancement effect of silver mirror.
