申畅,马玉林,陈朝霞,张玉红

• 1:有机化工新材料省部共建协同创新中心
• 2:功能材料绿色制备与应用教育部重点实验室
• 3:湖北大学化学化工学院

摘要(Abstract)：

以还原型谷胱甘肽为碳源，丙烯酸异辛酯为溶剂通过溶剂热法制备了具有绿色荧光发射的氮硫共掺杂碳点(G-CDs)。所制备的碳点在水中分散性良好，尺寸为(5.17±0.23)nm。在398 nm的激发波长下，其发射波长为517 nm,荧光量子产率为13.2%,且具有激发独立性。因为Fe~(3+)与G-CDs之间存在特异性内滤效应和电子转移，可以有效淬灭G-CDs的荧光。基于此类性能，我们开发了一种新的Fe~(3+)荧光检测方法，线性范围为20～80μmol/L,检测限为8.16μmol/L。在实际样品检测中，G-CDs具有良好的灵敏度，在荧光探针领域具有应用潜力。

关键词(KeyWords)： 碳点;绿色荧光;离子检测;内滤效应

Abstract:

Keywords:

基金项目(Foundation): 湖北省功能化学品工程技术中心项目(GCZX-2022-03)资助

作者(Author): 申畅,马玉林,陈朝霞,张玉红

参考文献(References)：

• [1] YE S,ZHANG M,GUO J,et al.Facile synthesis of green fluorescent carbon dots and their application to Fe3+ detection in aqueous solutions[J].Nanomaterials,2022,12(9):1487-1498.
• [2] 王琦，许静静，张秀莉，等.水热法制备荧光二硫化钼量子点在三价铁离子检测中的应用[J].化学试剂，2020,42(7):786-790.
• [3] LIU Z,JIA R,CHEN F,et al.Electrochemical process of early-stage corrosion detection based on N-doped carbon dots with superior Fe3+ responsiveness[J].Journal of Colloid and Interface Science,2022,606:567-576.
• [4] GHAEDI M,NIKNAM E.Application of Triton X-100 coated poly vinyl chloride as new solid phase for preconcentration of Fe3+,Cu2+ and Zn2+ ions and their flame atomic absorption spectrometric determinations[J].Bulletin of the Chemical Society of Ethiopia,2010,24(1):11-20.
• [5] TOWNSEND A T,MILLER K A,MCLEAN S,et al.The determination of copper,zinc,cadmium and lead in urine by high resolution ICP-MS [J].Journal of Analytical Atomic Spectrometry,1998,13(11):1213-1219.
• [6] BAKKAUS E,COLLINS R N,MOREL J L,et al.Anion exchange liquid chromatography-inductively coupled plasma-mass spectrometry detection of the Co2+,Cu2+,Fe3+ and Ni2+ complexes of mugineic and deoxymugineic acid[J].Journal of Chromatography A,2006,1129(2):208-215.
• [7] AKRAM D,ELHATY I A,ALNEYADI S S.Synthesis and antibacterial activity of rhodanine-based azo dyes and their use as spectrophotometric chemosensor for Fe3+ ions[J].Chemosensors,2020,8(1):16-25.
• [8] DONG J,LIU Q,YU L,et al.The interaction mechanism of Fe3+ and NH4+ on chalcopyrite surface and its response to flotation separation of chalcopyrite from arsenopyrite[J].Separation and Purification Technology,2021,256:117778.
• [9] LIU J,LI R,YANG B.Carbon dots:A new type of carbon-based nanomaterial with wide applications[J].ACS Central Science,2020,6(12):2179-2195.
• [10] 孙威，熊双玉，彭掌珠，等.荧光多孔二氧化硅纳米微球对Hg+离子的选择性检测和去除[J].武汉工程大学学报，2020,42(05):501-510.
• [11] GONG X,LU W,PAAU M C,et al.Facile synthesis of nitrogen-doped carbon dots for Fe3+ sensing and cellular imaging[J].Analytica Chimica Acta,2015,861:74-84.
• [12] CHEN Y,SUN X,PAN W,et al.Fe3+-sensitive carbon dots for detection of Fe3+ in aqueous solution and intracellular imaging of Fe3+ inside fungal cells[J].Frontiers in Chemistry,2020,7:911-920.
• [13] SHANGGUAN J,HUANG J,HE D,et al.Highly Fe3+-selective fluorescent nanoprobe based on ultrabright N/P codoped carbon dots and its application in biological samples[J].Analytical Chemistry,2017,89(14):7477-7484.
• [14] VAN CAMPENHOUT A,VAN CAMPENHOUT C,LAGROU A R,et al.Effects of in vitro glycation on Fe3+ binding and Fe3+ isoforms of transferrin[J].Clinical Chemistry,2004,50(9):1640-1649.
• [15] SCHNEIDER J,RECKMEIER C J,XIONG Y,et al.Molecular fluorescence in citric acid-based carbon dots[J].The Journal of Physical Chemistry C,2017,121(3):2014-2022.
• [16] FAN Y,SHEN L,LIU Y,et al.A sensitized ratiometric fluorescence probe based on N/S doped carbon dots and mercaptoacetic acid capped CdTe quantum dots for the highly selective detection of multiple tetracycline antibiotics in food [J].Food Chemistry,2023,421:136105.
• [17] PENA A C C,RAYMUNDO L M,TRIERWEILER L F,et al.Green carbon dots synthesized from Chlorella Sorokiniana microalgae biochar for chrome detection[J].Journal of Industrial and Engineering Chemistry,2023,117:130-139.
• [18] ZHONG Y,XUE F,WEI P,et al.Water-soluble MoS2 quantum dots for facile and sensitive fluorescence sensing of alkaline phosphatase activity in serum and live cells based on the inner filter effect[J].Nanoscale,2018,10(45):21298-21306.
• [19] LI Z,ZHANG L,LI X,et al.A fluorescent color/intensity changed chemosensor for Fe3+ by photo-induced electron transfer (PET) inhibition of fluoranthene derivative[J].Dyes and Pigments,2012,94(1):60-65.
• [20] YAN C N,XU L,LIU Q D,et al.Surface-induced ARGET ATRP for silicon nanoparticles with fluorescent polymer brushes[J].Polymers,2019,11(7):1228-1241.