摘要
用反胶束法合成了用表面活性剂分子磺基琥珀酸双 2 乙基己酯钠盐 (AOT)进行表面修饰的CdS纳米粒子 (记为CdS/AOT SO-3) ,研究了这种纳米粒子在正庚烷(heptane)和吡啶 (Py)溶剂中的荧光及光解行为 .发现其在正庚烷中荧光很强 ,而Py却强烈地猝灭CdS纳米粒子的荧光 ,用电荷转移猝灭机制进行了解释 .
The surfacemodified CdS nanoparticle (named as CdS/AOTSO- 3) with surfactant, AOT, was synthesized by reverse micelle method. The fluorescence properties and photolysis behavior of this CdS were studied in heptane and pyridine.The results show that the fluorescence of the CdS nanoparticle is intense in heptane, but is strongly quenched by pyridine. These results are explained by the chargetransfer quenching mechanism. The viewpoint is also further proved by the photolysis experiments of the CdS nanoparticle in pyridine.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2000年第5期431-436,共6页
Acta Physico-Chimica Sinica
基金
国家自然科学基金资助项目!(59582005)
关键词
表面修饰
荧光猝灭
光解
硫化镉纳米粒子
CdS nanoparticle, Surface-modification, Fluorescence quenching, Photolysis
