基于蝶翅鳞片三维结构的Au/SnO2纳米复合材料制备及其表面增强拉曼散射性能研究

doi:10.3724/SP.J.1077.2012.11698

无机材料学报 ›› 2012, Vol. 27 ›› Issue (9): 917-922.DOI: 10.3724/SP.J.1077.2012.11698

基于蝶翅鳞片三维结构的Au/SnO₂纳米复合材料制备及其表面增强拉曼散射性能研究

刘铂洋, 张旺, 何昭文, 张荻

(上海交通大学金属基复合材料国家重点实验室, 上海 200240)

收稿日期:2011-11-08 修回日期:2012-03-19 出版日期:2012-09-20 网络出版日期:2012-08-28
作者简介:刘铂洋(1985-), 男, 硕士研究生. E-mail: dllmby@sjtu.edu.cn
基金资助:
国家自然科学基金(51001070); 上海市科委基础研究重点项目(10JC1407600); 国家教育部回国人员科研启动基金(Z1029903)

Fabrication of Au/SnO₂ Nanocomposites Based on 3D Structures of Butterfly Wing Scales and Research on Its SERS Effects

LIU Bo-Yang, ZHANG Wang, HE Zhao-Wen, ZHANG Di

(Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites, Shanghai 200240, China)

Received:2011-11-08 Revised:2012-03-19 Published:2012-09-20 Online:2012-08-28
About author:LIU Bo-Yang(1985-).E-mail: dllmby@sjtu.edu.cn
Supported by:
National Natural Science Foundation of China (51001070); Shanghai Science and Technology Committee (10JC1407600); Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry (Z1029903)

摘要/Abstract

摘要： 利用巴黎翠凤蝶前翅翅鳞片作为模板, 通过前驱体浸泡后烧结的方法制备出具有原始蝶翅鳞片准周期三维结构的SnO₂(金红石相), 并采用化学沉积的方法在已制备的SnO₂上沉积Au纳米颗粒, 合成出Au/SnO₂纳米复合材料. 通过SEM、XRD以及TEM等表征方法检测并分析该材料形貌结构和成分组成. 采用罗丹明6G(R6G)作为分析物, 测试该材料的表面增强拉曼散射光谱. 通过材料形貌结构图及UV-Vis漫反射光谱谱图, 分析该基底的表面增强拉曼散射机理. 该基底所具有的三维结构为拉曼信号增强提供大量“热点”, 而基底材料中SnO₂和Au纳米颗粒为拉曼增强效应提供协同作用. 良好的拉曼性能以及较低的制备成本表明, 该新型表面增强拉曼散射基底具有一定的应用前景.

关键词: 蝶翅鳞片, 准周期三维结构, Au/SnO₂, 表面拉曼增强散射

Abstract: Scales from fore wings ofPapilio paris was used as templates, by ringing the original fore wings in the precursor and treatment by calcinations, SnO₂ (rutile) which inherited the 3D quasi-periodic structures of original wing scale was fabricated. After that, Au nanoparticles were incorporated in the system of as-prepared SnO₂ to form the Au/SnO₂ nanocomposites. XRD, SEM and TEM were carried out to investigate the morphologies, structures and elemental composition. For measuring Surface-enhanced Raman Scattering (SERS) effects of the Au/SnO₂ substrate, R6G was used as analyte molecules. By analyzing morphologies of this nanocomposites and UV-Vis DRS spectra of different substrates, mechanisms of SERS effects for this Au/SnO₂ nanocomposites substrate were analyzed. The three-dimensional nanostructures of the substrate provide large quantities of Raman ‘hot spots’, meanwhile, the SnO₂ and Au make synergetic contribution to the enhancement effects. The satisfying SERS properties combined with low synthesis costs show the prospective application possibilities of this novel SERS substrate.

Key words: butterfly wing scale, 3D quasi-periodic structure, Au/SnO₂, SERS

中图分类号:

O433

刘铂洋, 张旺, 何昭文, 张荻. 基于蝶翅鳞片三维结构的Au/SnO₂纳米复合材料制备及其表面增强拉曼散射性能研究[J]. 无机材料学报, 2012, 27(9): 917-922.

LIU Bo-Yang, ZHANG Wang, HE Zhao-Wen, ZHANG Di. Fabrication of Au/SnO₂ Nanocomposites Based on 3D Structures of Butterfly Wing Scales and Research on Its SERS Effects[J]. Journal of Inorganic Materials, 2012, 27(9): 917-922.

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基于蝶翅鳞片三维结构的Au/SnO₂纳米复合材料制备及其表面增强拉曼散射性能研究

Fabrication of Au/SnO₂ Nanocomposites Based on 3D Structures of Butterfly Wing Scales and Research on Its SERS Effects

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