Plasmon-mediated chemical reactions (PMCRs) are considered as promising methods for promoting photo-driven chemical reactions by using solar energy. In this work, metal–organic frameworks (MOFs; HKUST-1) /Ag NPs substrate was feasibly prepared by electrodeposition method and electrostatic adsorption, and it was applied for in-situ monitoring of PMCRs from 4-nitrobenzenethiol (4-NBT) to 4, 4′-dimercaptoazobenzene (DMAB). By conducting in-situ surface enhanced Raman spectroscopy (SERS), the HKUST-1/Ag NPs substrate was proved performing efficient localized surface plasmon resonance (LSPR) effect. Surprisingly, higher efficiency of plasmon catalytic reaction was observed comparing with traditional Ag substrate, which was benefited from the adsorption capacity and stabilization effect of HKUST-1. Thus, the reaction mechanism testified by using the high efficiency HKUST-1/Ag NPs substrate, and a novel route monitoring the plasmon catalytic reaction was further offered.

等离子体介导的化学反应（PMCR）被认为是利用太阳能促进光驱动化学反应的有前途的方法。在这项工作中，通过电沉积方法和静电吸附可行地制备了金属有机框架（MOF；HKUST-1）/Ag NPs基底，并将其应用于从4-硝基苯硫醇（4-NBT）到PMCR的原位监测。 4, 4'-二巯基偶氮苯 (DMAB)。通过原位表面增强拉曼光谱（SERS），HKUST-1/Ag NPs基底被证明具有有效的局域表面等离子体共振（LSPR）效应。令人惊讶的是，与传统的Ag基底相比，观察到更高的等离激元催化反应效率，这得益于HKUST-1的吸附能力和稳定作用。因此，