In this paper, a novel SERS imprinted composite material was successfully synthesized with the aid of surface enhanced Raman scattering technology and molecular imprinting technology, which could be suitable for specific detection of organic dyes in the river. The UIO-66(NH₂) was wrapped with a thin layer of polydopamine (PDA), after loading Ag nanoparticles on rough surface, Ag@UIO-66(NH₂)/PDA was synthesized and applied as the SERS substrate. In order to promote the ability of selective detection property in the practical sample, the molecularly imprinted polymer (Ag@UIO-66(NH₂)/PDA-MIPs) was proposed. When the concentrations range changed between 10⁻⁸ mol/L and 10⁻¹⁰ mol/L, the intensity of characteristic peak at 1596 cm⁻¹ exhibited a linear relationship with OII concentrations increasing. The limit of detection was low than 10⁻¹⁰ mol/L, the correlation coefficient was 0.9985. The prepared SERS substrate could be available to the practical sample detection, which expanded SERS detection fields.

本文利用表面增强拉曼散射技术和分子印迹技术成功合成了一种新型的SERS印迹复合材料，可适用于河流中有机染料的特异性检测。UIO-66(NH ₂ )用聚多巴胺(PDA)薄层包裹，在粗糙表面负载Ag纳米颗粒后，合成Ag@UIO-66(NH ₂ )/PDA作为SERS基底。为了提高实际样品的选择性检测能力，提出了分子印迹聚合物(Ag@UIO-66(NH ₂ )/PDA-MIPs)。当浓度范围在 10 ^-8 mol/L 和 10 ^{-10 之间变化时}mol/L，1596 cm ^-1处特征峰强度与OII浓度增加呈线性关系。检测限低于10 ^-10 mol/L，相关系数为0.9985。制备的SERS基底可用于实际样品检测，扩大了SERS检测领域。