物理化学学报2017，Vol.33Issue(2)：435-440,6.DOI:10.3866/PKU.WHXB201611101
室温电子还原制备金纳米颗粒与琼脂糖复合膜的表征与应用
Characterization and Application of Au Nanoparticle/Agarose Composite Film Fabricated by Room Temperature Electron Reduction
摘要
Abstract
An Au nanoparticle/agarose composite film was fabricated using room temperature electron reduction with argon glow discharge as a cheap electron source.The synthetic procedure was facile,easy,and green.Characterization by UV-Vis spectrophotometry (UV-Vis),transmission electron microscopy (TEM),scanning electron microscopy (SEM),X-ray diffraction (XRD),and X-ray photoelectron spectroscopy (XPS) revealed that the distribution of Au nanoparticles in the composite film could be tuned by varying the concentration of HAuCl4,while the shape ofAu nanoparticles could be controlled by adding polyvinyl pyrrolidone (PVP).The Au nanoparticles were closely packed in the composite film,making an excellent surface enhanced Raman scattering (SERS)-active substrate.A SERS enhanced factor (EF) of over 106 and detection limit as low as 10-12 mol· L-1 were obtained for SERS detection using 4-aminothiophenol (4-ATP) as the probe.Moreover,the composite film possessed good uniformity and stability as a SERS substrate.关键词
电子还原/复合膜/金/表面增强拉曼散射Key words
Electron reduction/Composite film/Au/SERS分类
化学化工引用本文复制引用
方敏,王宗元,刘昌俊..室温电子还原制备金纳米颗粒与琼脂糖复合膜的表征与应用[J].物理化学学报,2017,33(2):435-440,6.基金项目
The project was supported by the National Natural Science Foundation of China (21476157).国家自然科学基金(21476157)资助项目 （21476157）
