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    崔华

    • 教授 博士生导师 硕士生导师
    • 教师英文名称:Hua Cui
    • 教师拼音名称:Cui Hua
    • 电子邮箱:
    • 办公地点:环境资源楼-339
    • 联系方式:0551-3600730
    • 学位:博士
    • 2006当选:国家杰出青年科学基金获得者

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    Chemiluminescent and fluorescent dual-signal graphene quantum dots and their application in pesticide sensing arrays

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    DOI码:10.1039/c7tc01658a

    发表刊物:J. Mater. Chem. C

    摘要:In this work, N-(aminobutyl)-N-(ethylisoluminol) (ABEI) functionalized graphene quantum dots (ABEI-GQDs) with excellent chemiluminescence (CL) and fluorescence (FL) properties were synthesized. Firstly, small 2-dimensional graphene oxide (GO) was prepared by exfoliating and crushing graphite oxide in the presence of HNO3 and KMnO4. Then the size of small 2-dimensional GO was further decreased by reduction with NaBH4 to form GQDs. After that, ABEI was immobilized to the surface of GQDs by simply stirring the mixture of GQDs and ABEI. The synthesized ABEI-GQDs demonstrated excellent CL properties when reacting with H2O2 and wavelength-tunable FL emission with increasing excitation wavelength. And the bright blue FL of ABEI-GQDs could be seen even with the naked eye. Based on their CL and FL properties, a pesticide-sensing array was developed for the differentiation of pesticides. It was found that the sensing strategy could distinguish five pesticides with different concentrations, including thiamethoxam, flubendiamide, dimethoate, dipterex and chlorpyrifos. Novel CL and FL dual-signal graphene quantum dots ABEI-GQDs were obtained for the first time, which may find more applications in bioassays and bioimaging in the future.

    合写作者:巨力

    第一作者:高凌峰

    论文类型:期刊论文

    通讯作者:崔华

    论文编号:000407338200010

    学科门类:理学

    文献类型:J

    卷号:5

    期号:31

    页面范围:7753-7758

    ISSN号:2050-7526

    是否译文:

    发表时间:2017-08-21

    收录刊物:SCI

    发布期刊链接:https://pubs.rsc.org/en/content/articlelanding/2017/TC/C7TC01658A