银胶中结晶紫分子吸附动力学过程及氯离子的影响  

Adsorption Kinetics of Crystal Violet in Silver Colloid and the Influence of Chloride Ions

作　　者：傅石友[1] 郭余峰[1] 王云山[1] 张鹏翔[1] 张志三 

机构地区：[1]大庆石油学院电子工程系,中国科学院物理研究所

出　　处：《Chinese Journal of Chemical Physics》1995年第6期490-494,共5页化学物理学报（英文）

摘　　要：同在吸附银镜上相似［１］，ＣＶ在银胶上匀相吸附，表面形态对化学吸附的多相性无必然影响。氯离子的存在有助于银表面上产生ＳＥＲＳ活位，使ＣＶ的ＳＥＲＳ强度增强～１０２倍。活位上分子的喇曼散射截面较普通吸附位置上的分子增加了１０５倍。吸附动力学计算结果表明所有ＳＥＲＳ活位是等价的。Abstract The adsorption of Crystal Violet(CV) in Silver sol is homogeneous, which is indentical with on silver mirrors[1]. The absorption heterogeneity is not decided by the surface state completely. Chloride ions are helpful to produce SERS active sites on silver surface, and the SERS intensity Of CV enhances 10￣2 times. The Raman section of CV molecule on the active site increases 10￣5 times than on other absorption sites. The calculating results of adsorption kinetics shows all the active site is equal.

关 键 词：结晶紫 吸附动力学 氯离子 银胶 

分 类 号：O625.6[理学—有机化学] O647.32[理学—化学]