Abstract：Different shapes of gold nanoparticles (NPs) have different enhancement effect in Surface Enhanced Raman Scattering (SERS). The polyhedral Au NPs have multiple angular structures, which show stronger enhancement effect than Au nanoplatelets. In recent years, the research on synthesis and properties of polyhedral Au NPs has attracted much attention. In this study the enhancement effect of the Au NPs in SERS was observed in Au NPs with the shape of dodecahedron, icosahedron, triangular plate and spherosome. Triangular Au NP films were prepared through a chemical reduction method using sodium borohydride as the reductant. As for synthesizing icosahedral Au NPs, Poly (vinyl pyrrolidone) is used as a capping agent and diethylene glycol is used as a reducing agent. Dodecahedral Au NPs were synthesized using icosahedral Au NPs as seeds. SERS spectra were detected for these three Au NPs as well as the traditional colloidal Au by using 4-mercaptopyridine and 4-mercaptobenzoic as probing molecules. Triangular Au NP films, icosahedral Au NPs and dodecahedral Au NPs were with average diameters of about 130, 100 and 120 nm. UV/Vis spectroscopy indicated that these three Au NPs had typical absorbance bands at 589, 598 and 544 nm. The results show that the Au polyhedron has better enhancement ability than the Triangular NPs.
苏晓越，陈小燕，孙成彬，赵 冰，阮伟东* . 不同形貌金纳米粒子的制备及其表面增强拉曼散射效应的研究 [J]. 光谱学与光谱分析, 2017, 37(01): 7-12.
SU Xiao-yue, CHEN Xiao-yan, SUN Cheng-bin, ZHAO Bing, RUAN Wei-dong* . Preparation of Au Nanoparticles with Different Morphologies and Study of Their Property as Surface Enhanced Raman Scattering Substrates . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(01): 7-12.
[1] Fleischman M, Hendra P J, McQuillan A. Chem. Phys. Lett.，1974，26：163. [2] Xu H Y, Xue C Y, Zhang Q, et al. Journal of Measurement Science and Instrumentation, 2014, 5(1): 96. [3] Kwon K, Lee K Y, Lee Y W, et al. J. Phys. Chem. C, 2007, 111: 1161. [4] Saverot S, Geng X, Leng W, et al. RSC Advances，2016, 6：29669. [5] Minjung Kim, Gyoung Hwa Jeong, Young Wook Lee, et al. Bulletin of the Korean Chemical Society，2014, 35：958. [6] WANG Hui-juan, XUE Chen-yang, YUAN Yan-ling(王慧娟，薛晨阳，袁艳玲). Journal of Transducer Technology(传感技术学报)，2011, 24(1)：14. [7] JI Yuan, ZHOU Qun, LI Xiao-wei, et al(季 瑗，周 群，李晓伟，等). Analytical Chemistry(分析化学), 2004, 32: 1050. [8] Hu J W, Zhao B, Xu W Q, et al. Spectrochimica Acta A, 2002, 58: 2827. [9] Hong S, Acapulco Jr J A, Jang H Y, et al. Chem. Mater.，2014，26：3618. [10] Millstone J E, Wei W, Jones M R, et al. Nano Lett.，2008, 8：2526. [11] Niu W, Zhang W, Firdoz S, et al. J. Am. Chem. Soc.，2014, 136：3010. [12] Frens G. Nature Physics Science, 1973, 241(105): 20. [13] Awada C, Popescu T, Douillard L, et al. J. Phys. Chem. C，2012, 116(27)：14591. [14] Wang F L, Widejko R G, Yang Z Q, et al. Silver Nanoparticles Chem.，2012, 84, 8013. [15] Zhang L, Bai Y, Shang Z, et al. J. Raman Spectrosc.，2007，38：1106.
