期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
自组装金纳米颗粒薄膜耦合膨胀石墨构筑表面增强拉曼光谱基底的研究
- 河北师范大学化学与材料科学学院，河北省功能有机分子重点实验室，化学国家级实验教学示范中心，河北 石家庄 050024
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DOI：10.13763/j.cnki.jhebnu.nse.202503010
Construction of Surface-enhanced Raman Spectroscopy Substrates by Self-assembled Gold Nanoparticles Films Coupled with Expanded Graphite
摘要/Abstract
摘要：
利用液-液界面自组装技术，通过调控水相中金纳米颗粒(Au NPs)的浓度，成功构筑出均一大面积Au NPs薄膜，并进一步采用“水平附着法”将该薄膜与柔韧性良好的膨胀石墨(expanded graphite,EG)衬底进行耦合，制备了柔性Au NPs/EG表面增强拉曼光谱(surface-enhanced Raman spectroscopy,SERS)基底.该基底对结晶紫的检出限低于1×10-5 g/L,且具有良好的稳定性，此外，将1×10-3 g/L的结晶紫作为探针分子，并对其特征拉曼位移1170、1 610cm-1处的信号强度进行统计学分析，结果表明该基底均一性良好.
Abstract：
By utilizing liquid-liquid interface self-assembly technology,a uniform large-area Au NPs film was constructed by regulating the concentration of gold nanoparticles(Au NPs)in the aqueous phase.A flexible Au NPs/EG surface-enhanced Raman spectroscopy(SERS)substrate was prepared by coupling the Au NPs film with a flexible expanded graphite(EG)substrate using the 'horizon-attachment method'.The detection limit of crystal violet on this substrate is below 1×10-⁵ g/L,with the good stability.In addition,crystal violet with a concentration of 1×10-³ g/L was used as a probe molecule,and the statistical analysis was conducted on the signal intensity at the characteristic Raman shifts of 1 170,1 610 cm⁻¹of crystal violet.The results showed that the substrate had relatively good uniformity.
关键词
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