One-pot green and simple synthesis of polyvinyl pyrrolidone capped for copper nanoclusters for high selectivity sensing of fluazinam

Micro & nano letters

article

Zhifeng Cai¹  Shulin Pang¹  Xinru Ma¹  Li Zhu¹  Yefan Zhang¹  Fang Tian¹  Caifeng Zhang¹ 

[1] Department of Chemistry, Taiyuan Normal University;Humic Acid Engineering and Technology Research Center of Shanxi Province

关键词: X-ray photoelectron spectra;    solubility;    fluorescence;    visible spectra;    ultraviolet spectra;    chemical sensors;    nanofabrication;    copper;    transmission electron microscopy;    nanostructured materials;    Fourier transform infrared spectra;    polymers;    optical sensors;    nanosensors;    transmission electron microscopy;    X-ray photoelectron spectroscopy;    water solubility;    photostability;    blue fluorescence;    fluorescence intensity;    fluazinam;    fluorescence sensor;    polyvinyl pyrrolidone;    copper nanoclusters;    fluorescence spectroscopy;    UV-vis absorption spectroscopy;    Cu;   

DOI  :  10.1049/mnl.2019.0757

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

In this contribution, polyvinyl pyrrolidone capped copper nanoclusters (PVP-Cu NCs) were synthesised through a one-pot route possessing the advantages of rapidness and environmental friendliness. Also, the optical characteristics of the as-prepared Cu NCs were characterised using fluorescence spectroscopy, UV–vis absorption spectroscopy. The structure and composition were studied through Fourier transform infrared, transmission electron microscopy, X-ray photoelectron spectroscopy. It exhibited good water solubility, excellent photo stability, and resistance to sodium chloride. The Cu NCs revealed blue fluorescence and displayed excitation-dependent fluorescence characteristics. More importantly, the fluorescence intensity of PVP-Cu NCs was linearly quenched in the range of 5–80 μM (concentrations of fluazinam) and the detection limit was 0.98 μM. Finally, the fluorescence sensor was successfully employed to detect fluazinam in natural water samples.

【 授权许可】

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