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亮蓝与石墨烯/CdTe量子点复合物相互作用的荧光光谱性能研究
引用本文:张棵实,王影,刘芳同,金丽. 亮蓝与石墨烯/CdTe量子点复合物相互作用的荧光光谱性能研究[J]. 吉林化工学院学报, 2019, 36(3): 21-24. DOI: 10.16039/j.cnki.cn22-1249.2019.03.004
作者姓名:张棵实  王影  刘芳同  金丽
作者单位:吉林化工学院 化学与制药工程学院
摘    要:成功地合成了石墨烯/CdTe量子点复合物,并基于亮蓝对石墨烯/CdTe量子点复合物的较强的荧光猝灭作用,研究了亮蓝与石墨烯/CdTe量子点复合物相互作用的光谱性能。研究发现,亮蓝的紫外吸收光谱和石墨烯/CdTe量子点复合物的荧光发射光谱相互重叠,亮蓝荧光发射强度的增加和石墨烯/CdTe量子点复合物荧光发射强度的降低,推断两者之间发生了荧光共振能量转移。此外,石墨烯/CdTe量子点复合物荧光强度的降低(F0/F)与亮蓝的浓度之间具有良好的线性关系,线性范围为12.62-94.65nmol·L-1,最低检出限为6.4nmol·L-1,可用于溶液中亮蓝的定量分析,为建立新型荧光传感器提供了理论和实验基础。

关 键 词:亮蓝  石墨烯/CdTe量子点复合物  荧光猝灭  荧光共振能量转移  

The Fluorescence Spectrum Properties of Interaction between Brilliant Blue with Graphene/CdTe Quantum Dots Composites
ZHANG Keshi,WANG Ying,LIU Fangtong,JIN Li. The Fluorescence Spectrum Properties of Interaction between Brilliant Blue with Graphene/CdTe Quantum Dots Composites[J]. Journal of Jilin Institute of Chemical Technology, 2019, 36(3): 21-24. DOI: 10.16039/j.cnki.cn22-1249.2019.03.004
Authors:ZHANG Keshi  WANG Ying  LIU Fangtong  JIN Li
Abstract:In this paper, graphene/CdTe quantum dots composites had been successfully synthesized, the spectral properties of the interaction between Brilliant blue and graphene/CdTe quantum dot complexes were investigated based on the strong fluorescence quenching effect of Brilliant Blue on graphene/CdTe quantum dots composites. Results shown that the UV absorption spectra of Brilliant Blue overlapped with the fluorescence emission spectrum of graphene/CdTe quantum dot composites, and increasing of fluorescence emission intensity of Brilliant Blue and the decreasing of the fluorescence emission intensity of graphene/CdTe quantum dot complex, all these indicated that fluorescence resonance energy transfer between Brilliant Blue and graphene/CdTe quantum dot has been taken place. Also there is a good linear relationship between the decreasing of fluorescence intensity of graphene/CdTe quantum dots composites (F0/F) and the concentrations of Brilliant Blue, the linear range is 18.93?94.65nmol·L-1, the detection limit is 6.6nmol·L-1, which could be used to quantitative analysis of Brilliant Blue solution, and could provide a theoretical and experimental basis for new fluorescence sensors.
Keywords:brilliant blue  Graphene/CdTe composites  fluorescence quenching  fluorescence resonance energy transfer  
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