物理化学学报 >> 1996, Vol. 12 >> Issue (03): 259-263.doi: 10.3866/PKU.WHXB19960313

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苯三偶氮衍生物吸附在银溶液上的SERRS谱

李丽霞,王继扬   

  1. 山东大学环境工程系，晶体材料研究所，济南 250100
  • 收稿日期:1995-03-17 修回日期:1995-05-23 发布日期:1996-03-15
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SERRS of the Derivative of Benzotriazole Adsorbed on Silver Sol

Li Li-Xia,Wang Ji-Yang   

  1. Department of Enviromental Engineering,Institute of Crystal Material,Shangdong University,Jinan 250100
  • Received:1995-03-17 Revised:1995-05-23 Published:1996-03-15
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关键词: 苯三偶氮衍生物, 吸附态, 表面增强共振拉曼谱

Abstract:

In this paper, the SERRS of BATD has been investigated, the effect of pH, concentration and electrolyte on SERRS was discussed and the adsorbed state of BTAD was figured. We suggest that the adsorbed state of BTAD is the bonding of benzotriazol to Ag surface via lone pair electron on the nitrogen. With HCl and ascorbic acid aggregate Ag sol, the dependence of SERRS on BTAD concentration behaves differently. In the former case, the adsorbed state changes, but in the latter it remains the same. Small amount of electrolyte will induce the active sites on the surface, but when it is more than 1×10-2mol﹒L-1, the competent adsorbtion reduces the Raman scattering intensity. Hydrogen ions protonize BTAD to BTAHD and reduce the contribution of lone pair electron on N atom of the conjugated system.

Key words: BTAD, Adsorbed state, SERRS