Gamma-ray irradiation synthesis of silk fibroin-coated CdS quantum dots

CHANG Shuquan CHEN Da DAI Yaodong ZHANG Yali KANG Bin

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Gamma-ray irradiation synthesis of silk fibroin-coated CdS quantum dots

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- Gamma-ray irradiation synthesis of silk fibroin-coated CdS quantum dots
- NUCLEAR TECHNIQUES Vol. 33, Issue 3, (2010)
- 作者机构：
  
  南京航空航天大学材料学院核科学与工程系
- 作者简介：
- 基金信息：
  
  江苏省自然科学基金项目(BK2008400)资助
- DOI：
  CLC： TL99;TN305
- Published：01 March 2010
- 稿件说明：
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[1]常树全,陈达,戴耀东,张亚丽,康斌.γ射线辐照法制备丝素蛋白包覆的CdS量子点[J].核技术,2010,33(03):179-182.

CHANG Shuquan CHEN Da DAI Yaodong ZHANG Yali KANG Bin. Gamma-ray irradiation synthesis of silk fibroin-coated CdS quantum dots[J]. Nuclear techniques, 2010, 33(3): 179-182.
[1]常树全,陈达,戴耀东,张亚丽,康斌.γ射线辐照法制备丝素蛋白包覆的CdS量子点[J].核技术,2010,33(03):179-182. DOI：

CHANG Shuquan CHEN Da DAI Yaodong ZHANG Yali KANG Bin. Gamma-ray irradiation synthesis of silk fibroin-coated CdS quantum dots[J]. Nuclear techniques, 2010, 33(3): 179-182. DOI：

摘要

用γ射线辐照法在水溶液中成功制备丝素蛋白包覆的CdS量子点（SF-CdSQDs）

并用透射电子显微镜（TEM）、X射线衍射仪（XRD）、能谱仪（EDS）、红外光谱仪（FT-IR）、紫外-可见分光光度计（UV-vis）和荧光发射谱仪（PL）等对产物进行表征。结果表明

丝素蛋白包覆的CdS量子点约5nm

粒径分布较窄

分散性和水溶性良好

发光性能优异

最大发射峰在538nm附近。讨论了辐照法制备丝素蛋白包覆量子点的合成过程和反应机理。本合成方法简单易行

可用来制备丝素蛋白包覆的其它纳米材料。

Abstract

Silk fibroin coated CdS quantum dots（SF-CdS QDs） were successfully synthesized in an aqueous system at room temperature under 60Co γ-ray irradiation.The prepared QDs were characterized by transmission electron microscopy（TEM）

energy dispersion spectrometry（EDS）

Fourier transform infrared spectrometer（FT-IR）

X-ray diffraction（XRD）

ultraviolet-visible spectroscopy（UV-vis） and photoluminescence（PL） spectrometry.The synthesized QDs were about 5 nm in diameter with excellent water-solubility.The QDs showed strong visible yellow-green luminescence under UV excitation

at an emission peak of around 538 nm.This method could be conveniently extended to fabricate other nanoparticles coated with silk fibroin.

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