ABSTRACT Surface enhanced Raman scattering (SERS) substrates, composed of plasmonic nanostructures (PNSs) and photocatalyst semiconductors, have emerged as novel multifunctional nanomaterials for advanced engineering applications. These combinations improve the photocatalytic activity of such systems and extend their application as recyclable SERS substrates owing to their self-cleaning ability by photodegradation of analyte molecules. Such combinations allow the fabrication of highly sensitive, reproducible, stable and recyclable SERS substrates. The present article focusses on new developments in design and engineering of such recyclable SERS substrates. The recyclable SERS substrates made of PNSs (Au or Ag NSs) and semiconductor photocatalyst (metal oxides; TiO2, ZnO, WO3, Fe3O4, and others; CdS, conducting polymers, Si NSs) NSs are mainly discussed along with fundamental mechanisms of their multifunctional actions. These recyclable SERS substrates are potential candidates for the detection and elimination of organic compounds (pollutants) as discussed in detail with special emphasis on their reproducibility and long term stability. In addition, current challenges and future potential requirements are also discussed.

中文翻译：

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可回收SERS基板的基础与应用

摘要 表面增强拉曼散射 (SERS) 基底由等离子体纳米结构 (PNS) 和光催化剂半导体组成，已成为用于高级工程应用的新型多功能纳米材料。这些组合提高了此类系统的光催化活性，并扩展了它们作为可回收 SERS 基材的应用，因为它们通过光降解分析物分子具有自清洁能力。这种组合允许制造高度敏感、可重复、稳定和可回收的 SERS 基板。本文重点介绍此类可回收 SERS 基板的设计和工程方面的新进展。由 PNSs（Au 或 Ag NSs）和半导体光催化剂（金属氧化物；TiO2、ZnO、WO3、Fe3O4 等；CdS、导电聚合物、Si NSs) NSs 主要与其多功能作用的基本机制一起讨论。这些可回收​​的 SERS 底物是检测和消除有机化合物（污染物）的潜在候选物，详细讨论过，并特别强调了它们的重现性和长期稳定性。此外，还讨论了当前的挑战和未来的潜在需求。