Photolysis dynamics of benzyl phenyl sulfide adsorbed on silver nanoparticles

被引：19

作者：

Kim, SJ ^{[1
]}

Kim, TG ^{[1
]}

Ah, CS ^{[1
]}

Kim, K ^{[1
]}

Jang, DJ ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Chem NS60, Seoul 151742, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 03期

关键词：

D O I：

10.1021/jp030858l

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：

The photolysis dynamics of benzyl phenyl sulfide adsorbed on silver nanoparticles suspended in water has been studied by using time-resolved transient-absorption spectroscopy. The adsorbed molecule desorbs from the metallic surface with a photoejected electron within 2 ns after excitation. The anionic species dissociates into benzenethiolate and benzyl radical on the time scale of 8 ns. The benzenethiolate combines to the metallic surface of a silver nanoparticle in 30 ns while the benzyl radical abstracts atomic hydrogen from water in 130 ns to form toluene.

引用

页码：880 / 882

页数：3