基于金属有机框架的SERS基底在环境检测中的应用研究进展

Research progress on the application of metal-organic frameworkbased SERS substrates in environmental detection

作为一种快速灵敏的指纹光谱技术,表面增强拉曼光谱技术(surface-enhanced Raman spectroscopy,SERS)在环境污染物检测领域具有很大的应用潜力,然而目前这种痕量检测技术仍存在富集目标分子困难的问题.金属有机框架(metal organic frameworks,MOFs)材料有助于解决SERS基底的富集难题.本文首先介绍了SERS技术的背景、目前待解决的问题、MOFs的特点和基于MOFs的复合SERS基底的优势,综述了近五年来基于MOFs的复合SERS基底在环境检测中的应用进展,并重点讨论了MOFs在其中的作用,最后初步探讨了这类复合基底目前面临的挑战及发展趋势.

Surface-enhanced Raman spectroscopy(SERS),a fingerprint spectroscopy technique with ultra-high sensitivity,has great application potential in detecting environmental pollutants.However,enriching trace target molecules with the SERS substrate is still challenging.The metalorganic frameworks(MOFs)can help solve this problem.Here,the background of SERS,the characteristics of MOFs,and the advantages of the SERS composite substrates based on MOFs were introduced first.Then,the progress and application of the composite substrates in environmental detection in the past five years were discussed.Meanwhile,the functions of MOFs in the environmental field were particularly emphasized.Finally,this composite substrate's challenges and possible development trends were tentatively discussed.