电化学法合成荧光碳纳米粒子及性能表征  

Study on the synthesis and photoluminescence of fluorescent carbon nanoparticles by a electrochemical method

作　　者：李月[1] 代宁宁[1] 杨尚文[1] 魏倾鹤 齐斌[1] 

机构地区：[1]东北师范大学化学学院,吉林长春130024

出　　处：《分子科学学报》2014年第4期314-317,共4页Journal of Molecular Science

基　　金：吉林省科技发展计划项目(20130102003JC)

摘　　要：介绍了一种通过电化学氧化-还原循环的方法的制备碳纳米粒子并对其相关性质进行了表征.透射电镜结果表明,制备的纳米粒子粒径大小分布在(2.5±0.3)nm区间,而且其晶格间距为0.33nm左右,完全符合石墨的晶体特征.荧光光谱显示,该粒子在456nm具有稳定的可见光发射,其荧光量子效率达到了0.11.此外还考察了纳米碳颗粒的电化学发光性质,结果表明,该粒子在电化学发光检测方面具有潜在的应用价值.Here,we present a method of preparing carbon nano-particles via oxidation-reduction cycling.TEM results showed the size of the as-prepared particles was（2.5±0.3）nm and the crystal lattice was 0.33 nm which matchs well with the graphite.The fluorescence spectrum showed the as prepared particles showed a stable emission at 456 nm,and the fluorescence quantum efficiency was 0.11.And the results also showed the potential applications of the as-prepared nanoparticles in electrochemiluminescence analysis.

关 键 词：电化学 氧化还原循环 荧光碳纳米粒子 量子点 电化学发光 

分 类 号：O646[理学—物理化学]