摘要
以羟基化SBS为模板,乙酸镉、硫化钠为反应前驱物,利用盐诱导方式在四氢呋喃-甲醇-水体系中制备得到CdS纳米粒子。通过紫外-可见吸收光谱、荧光光谱及透射电子显微镜对CdS纳米粒子的光学性质及形貌进行了表征。结果表明,利用嵌段聚合物的两亲性质,可以得到稳定的具有明显量子尺寸效应的CdS半导体纳米粒子,透射电子显微镜结果表明所得到的CdS半导体纳米粒子具有冠状复合胶束结构。
CdS nanoparticles were synthesized by using cadmium acetate,sodium sulfide and SBS-OH poly（styrene-b-butadiene-b-styrene）as raw materials through salt-induced route in tetrahydrofuran-methanol-water.The optical properties and morphologies for the synthesized CdS nanoparticles were determined through UV-Vis and TEM measurements.The results show that stable corona-embedded CdS nanoparticles could be obtained by taking advantage of amphiphilic properties for SBS-OH micelles in tetrahydrofuran-methanol-water.UV-Vis absorption and PL spectra show that CdS nanoparticles could give an apparent quantum confinement effects.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2010年第A02期346-348,共3页
Journal of Functional Materials
基金
辽宁省科技厅博士基金资助项目(200644)
关键词
嵌段聚合物
硫化镉纳米粒子
模板法
合成
表征
block copolymers
CdS nanoparticles
template
synthesis
characterization
