CAJ | 학술논문

采用自组装与原位生长相结合的方法,以氧化还原石墨烯( RGO)为基板,银纳米粒子作为增强基底,巯基-b-环糊精(SH-b-CD)作为识别功能分子,构筑了具有表面增强拉曼光谱(SERS)效应和超分子识别性能的RGO/Ag/SH-b-CD纳米组装体。在此基础上,以结晶紫作为探针分子对该纳米组装体的SERS性能做了初步研究,并将其应用于1-萘酚、2-萘酚和苯酚分子的识别和检测。结果表明,与单纯的氧化石墨( GO)基板相比,RGO/Ag/SH-b-CD纳米组装体表现出明显的SERS增强效果,且在1-萘酚、2-萘酚和苯酚的浓度分别为10-5 mol/L时,RGO/Ag/SH-b-CD能通过其SERS信号的差异将其明显识别。制备的RGO/Ag/SH-b-CD纳米组装体同时具有SERS信号和超分子识别的双重功能,从而有可能在超分子识别领域中得到应用。
채용자조장여원위생장상결합적방법,이양화환원석묵희( RGO)위기판,은납미입자작위증강기저,구기-b-배호정(SH-b-CD)작위식별공능분자,구축료구유표면증강랍만광보(SERS)효응화초분자식별성능적RGO/Ag/SH-b-CD납미조장체。재차기출상,이결정자작위탐침분자대해납미조장체적SERS성능주료초보연구,병장기응용우1-내분、2-내분화분분분자적식별화검측。결과표명,여단순적양화석묵( GO)기판상비,RGO/Ag/SH-b-CD납미조장체표현출명현적SERS증강효과,차재1-내분、2-내분화분분적농도분별위10-5 mol/L시,RGO/Ag/SH-b-CD능통과기SERS신호적차이장기명현식별。제비적RGO/Ag/SH-b-CD납미조장체동시구유SERS신호화초분자식별적쌍중공능,종이유가능재초분자식별영역중득도응용。
In this paper,the RGO/Ag/SH-b-CD nano-assembly were constructed by“self-assembly”and “in situ growth” techniques with the properties of surface enhanced Raman scattering ( SERS ) and supramolecular recognition. In this nano-assembly,reduced graphene oxide( RGO) was used as plate,Ag nanoparticles(Ag NPs)as SERS-active substrate and thiolated β-cyclodextrin(SH-b-CD)as recognition molecules. Based on this, the SERS spectra of RGO/Ag/SH-b-CD nano-assembly were studied using crystal violet as probe molecules,and this nano-assembly were also applied to molecular recognitions and detectionof 1-Naphthol,2-Naphthol and phenol. Results indicated that RGO/Ag/SH-b-CD nano-assembly showed obvious SERS signals compared with pure GO. Meanwhile,1-Naphthol,2-Naphthol and phenol could be recognized clearly at a low concentration of 10-5 mol/L based on the different SERS signals. These results indicated that the as-prepared RGO/Ag/SH-b-CD nano-assembly possessed both SERS and supramolecular recognition properties and thus may be applied to molecular detections and recognitions.