EVIDENCE FOR ADSORBED SO2 AT THE AQUEOUS AIR INTERFACE

被引:68
作者
DONALDSON, DJ
GUEST, JA
GOH, MC
机构
[1] UNIV TORONTO,SCARBOROUGH COLL,TORONTO,ON M5S 1A1,CANADA
[2] UNIV CINCINNATI,DEPT CHEM,CINCINNATI,OH 45221
关键词
D O I
10.1021/j100023a002
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We present direct experimental evidence for the existence of a surface-bound state of partially hydrated SO2 on water. Surface second harmonic generation (SHG) and static surface tension measurements are used to examine the SO2 surface coverage as a function of its bulk aqueous concentration. The results indicate a Langmuir-type adsorption of SO2 at the air-water interface. These experiments represent the first report of the application of surface SHG techniques to detect gas adsorption onto a liquid surface.
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页码:9313 / 9315
页数:3
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