The synthesis and modification of highly fluorescent carbon quantum dots for reversible detection of water-soluble phosphonate-1-hydroxyethane-1,1-diphosphonic acid by fluorescence spectroscopy.
作者： Xin Lu , Fengyun Wang , Wu Lei , Mingzhu Xia
DOI: 10.1002/BIO.3935
关键词:
摘要: Photoluminescent (PL) carbon quantum dots (CQDs) were prepared successfully using a facile and green procedure. They exhibited striking blue fluorescence excellent optical properties, with yield as high 61.44%. Due to the quenching effect stronger complexing ability of phosphoric acid group 1-hydroxyethane-1,1-diphosphonic (HEDP) Fe3+ , CQDs doped adequately constructed an efficient sensitive fluorescent probe for HEDP-specific sensing. The proposed had rapid response in range 5-70 μM. Furthermore, quantitative molecular surface (QMS) analysis based on Multiwfn program was applied explore complexation mode HEDP metal ions. distribution electrostatic potential (ESP), average local ionization energy (ALIE), minimum value points position lone pair electrons van der Waals further determined. More strikingly, this experiment achieved detection water-soluble phosphonate-HEDP, first time spectrometry. It has been proved be effective intuitive sensing method real samples.
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