A 3D flexible domestic waste styrofoam is reported as a surface enhanced Raman scattering (SERS) substrate loaded with BiOCl-BiOBr@Pt/Au semiconductor-plasmonic composites. The hydrothermally prepared BiOCl-BiOBr nanocomposite is thoroughly characterized for its crystal structure using X-Ray diffraction, morphology through scanning electron microscopy, and electronic states of the elements using X-ray photoelectron spectroscopy. The alpha cypermethrin (ACM) is chosen as a model pesticide analyte for SERS investigation. The BiOCl-BiOBr@Pt/Au loaded foam substrate exhibited a high enhancement factor (106) and low limit of detection (10−10 M) upon SERS investigation. The unique architecture of the semiconductor-plasmonic composite enables an efficient charge transfer capability and plasmonic hotspots which aids in the enhancement of target analytes. In order to better demonstrate the versatility towards other pesticides, SERS detection of glyphosate and paraquat pesticides are also performed using the fabricated SERS substrate. The stability of the substrate has been investigated in detail for 30 days and the substrate was highly stable. The BiOCl-BiOBr@Pt/Au-based foam substrate also performed well in rapid real-time sensing of alpha cypermethrin on the kiwi fruit exocarp at lower level concentrations. Graphical abstract Graphical abstract

中文翻译：

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使用泡沫聚苯乙烯上的 BiOCl-BiOBr@Pt/Au 混合纳米结构作为 3D 功能基板对农药进行高性能 SERS 检测

据报道，一种 3D 柔性生活垃圾泡沫聚苯乙烯是一种表面增强拉曼散射 (SERS) 基底，其负载有 BiOCl-BiOBr@Pt/Au 半导体-等离子体复合材料。水热制备的 BiOCl-BiOBr 纳米复合材料的晶体结构使用 X 射线衍射、形态学通过扫描电子显微镜和元素的电子状态使用 X 射线光电子能谱进行了彻底表征。选择 α 氯氰菊酯 (ACM) 作为 SERS 研究的模型农药分析物。BiOCl-BiOBr@Pt/Au 负载泡沫基材在 SERS 研究中表现出高增强因子 (106) 和低检测限 (10-10 M)。半导体-等离子体复合材料的独特结构实现了有效的电荷转移能力和等离子体热点，这有助于增强目标分析物。为了更好地证明对其他农药的多功能性，还使用制造的 SERS 基质对草甘膦和百草枯农药进行了 SERS 检测。对底物的稳定性进行了30天的详细研究，底物高度稳定。BiOCl-BiOBr@Pt/Au 基泡沫基质在较低浓度下猕猴桃外果皮上 α 氯氰菊酯的快速实时传感方面也表现良好。图形摘要图形摘要 BiOCl-BiOBr@Pt/Au 基泡沫基质在较低浓度下猕猴桃外果皮上 α 氯氰菊酯的快速实时传感方面也表现良好。图形摘要图形摘要 BiOCl-BiOBr@Pt/Au 基泡沫基质在较低浓度下猕猴桃外果皮上 α 氯氰菊酯的快速实时传感方面也表现良好。图形摘要图形摘要