A novel electrochemiluminescence resonance energy transfer system of luminol-graphene quantum dot composite and its application in H2O2 detection

作者：Tian, Kaile; Li, Dejian; Tang, Tingting; Nie, Fei^*; Zhou, Yang; Du, Jianxiu; Zheng, Jianbin

来源：Talanta, 2018, 185: 446-452.

DOI：10.1016/j.talanta.2018.03.064

• Electrochemiluminescence
• Nitrogen-doped graphene quantum dot
• Luminol
• Resonance energy transfer
• Hydrogen peroxide

Luminol-nitrogen doped graphene quantum dot (luminol-NGQDs) nanocomposite was synthesized and a novel electrochemiluminescence resonance energy transfer (ECL-RET) process occurred between luminol as the donor and NGQDs as the acceptor in the composite. This ECL-RET effect helped luminol-NGQDs composite produced an anodic ECL signal without coreactants. The ECL-RET mechanism was also studied based on the fluorescence spectra, the ultraviolet visible absorption spectra and the electrochemiluminescence (ECL) spectra. Based on the significant sensitization effect of hydrogen peroxide on luminol-NGQDs ECL signal, an ECL method for the sensitive determination of hydrogen peroxide was established and then applied to the detection of hydrogen peroxide in water samples.

• 出版日期2018-8-1
• 单位陕西师范大学; 生命分析化学国家重点实验室; 西北大学