大学化学 >> 2025, Vol. 40 >> Issue (2): 111-120.doi: 10.12461/PKU.DXHX202409019

所属专题： 教学型仪器的研制&改进与实验教学

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金属纳米粒子的制备及光学性质探究与表面增强拉曼应用

裴昕迪1, 王嘉祎1, 樊橙希1, 邓人豪1, 裴银豪1, 张则予2, 王宇哲1, 吴平平1, 张华2, 王翔1   

  1. 1 厦门大学化学化工学院, 化学国家级实验教学示范中心(厦门大学), 福建 厦门 361005;
    2 厦门大学材料学院, 福建 厦门 361005
  • 收稿日期:2024-09-03 录用日期:2024-10-30 发布日期:2025-02-22
  • 通讯作者: 王翔 E-mail:wangxiang@xmu.edu.cn
  • 基金资助:
    国家自然科学基金(22227802,22021001,22393901,22372141)

Preparation and Optical Properties Investigation of Metal Nanoparticles for Surface-Enhanced Raman Spectroscopy

Xindi Pei1, Jiayi Wang1, Chengxi Fan1, Renhao Deng1, Yinhao Pei1, Zeyu Zhang2, Yuzhe Wang1, Pingping Wu1, Hua Zhang2, Xiang Wang1   

  1. 1 National Demonstration Center for Experimental Chemistry Education (Xiamen University), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, China;
    2 College of Materials, Xiamen University, Xiamen 361005, Fujian Province, China
  • Received:2024-09-03 Accepted:2024-10-30 Published:2025-02-22
  • Contact: Xiang Wang E-mail:wangxiang@xmu.edu.cn

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摘要： 旨在学习金属纳米粒子的光学性质及其在表面增强拉曼光谱(SERS)中的应用，涵盖金属纳米材料的合成制备、表征及应用，让学生在学习无机合成、光学表征方法的同时，体验目前科学研究中材料制备-性质表征-体系应用的实验逻辑和思路，适用于不同学习阶段的学生。具体来说，首先通过改变合成条件，制备不同粒径和形状的金属纳米粒子。继而通过紫外吸收光谱(UV-Vis)和扫描电子显微镜(SEM)等来表征相互关联的光学性质与形貌，并能与基本的纳米光学原理对应理解。最后在SERS的应用中体现如何通过前期制备和表征来优化检测效果。环环相扣的学习和设计，让学生在学习专业知识的同时，提升科学思维。

关键词: 金属纳米粒子, 可控制备, 光学表征, 表面增强拉曼光谱

Abstract: This experiment is designed to explore the optical properties of metal nanoparticles and their applications in surface-enhanced Raman spectroscopy (SERS). It covers the synthesis, characterization, and applications of metal nanomaterials, allowing students to learn inorganic synthesis techniques and optical characterization methods while gaining insight into the experimental workflow of material preparation, property characterization, and system application-core elements of current scientific research. This experiment is suitable for students at various stages of their studies. Specifically, students will synthesize metal nanoparticles with varying sizes and shapes by adjusting the synthesis conditions at fist. Then they will characterize the optical properties and morphology using UV-Vis absorption spectroscopy and scanning electron microscopy (SEM), helping them relate these observations to basic nanophotonics principles. Finally, through the application of SERS, students will learn how preparation and characterization steps can be optimized to enhance detection results. This stepwise learning approach not only deepens students’ understanding of professional knowledge but also fosters scientific thinking.

Key words: Metal nanoparticles, Controlled synthesis, Optical characterization, Surface-enhanced Raman spectroscopy (SERS)