金纳米粒子等离激元催化的尺寸效应研究  

Study on the Size Eff ect in Plasmonic Catalysis of Gold Nanoparticles

作　　者：石子玉 刘畅 徐敏敏[1] 孙启明 Shi Ziyu;Liu Chang;Xu Minmin;Sun Qiming(College of Chemistry,Chemical Engineering and Materials Science of Soochow University,Jiangsu,215123)

机构地区：[1]苏州大学材料与化学化工学部,江苏215123

出　　处：《当代化工研究》2025年第5期54-56,共3页Modern Chemical Research

基　　金：苏州大学大学生创新创业训练计划“多级孔分子筛封装超小尺寸金属催化剂的制备、储氢及作用机制研究”(项目编号:202310285034Z)。

摘　　要：表面增强拉曼光谱(SERS)具有极高的表面灵敏度,广泛应用于生物医学、环境科学、材料、催化、能源等各个领域。研究了不同尺寸金纳米粒子(Au NPs)对SERS信号的影响。通过合成尺寸为30nm、50nm、70nm和90nm的Au NPs,并将其作为SERS基底,以孔雀石绿(MG)和对巯基苯胺(PATP)为探针分子,对比了SERS性能和SPR催化性能。实验结果表明,不同尺寸Au NPs在SERS信号强度和稳定性方面存在显著差异,为优化基于Au NPs的SERS基底提供了理论依据。Surface-enhanced Raman spectroscopy(SERS)exhibits extremely high surface sensitivity and is widely applied in various fields such as biomedicine,environmental science,materials,catalysis,and energy.The influence of gold nanoparticles(Au NPs)of different sizes on SERS signals were investigated.By synthesizing Au NPs with sizes of 30 nm,50 nm,70 nm,and 90 nm,and using them as SERS substrates,the SERS performance and SPR catalytic performance were compared using malachite green(MG)and p-aminothiophenol(PATP)as probe molecules.The experimental results demonstrate significant differences in SERS signal intensity and stability among Au NPs of different sizes,provding a theoretical basis for optimizing Au NP-based SERS substrates.

关 键 词：金纳米粒子 尺寸效应 催化 表面增强拉曼光谱 

分 类 号：O643.32[理学—物理化学]