The construction of a sensing platform to efficiently identify organic vapors with similar physical properties remains a challenge. In this study, three-dimensional (3D) ordered hierarchical films consisting of lanthanide metal–organic frameworks (MOFs) were fabricated via cathodic electrochemical deposition using a bottom–up approach. The film exhibited a bright structural color produced by the ordered macroporous structure and a luminescent color derived from the lanthanide MOFs. The resultant MOF film exhibited different optical responses during the detection of six different volatile organic amines in reflective and fluorescent modes, enabling an unprecedented 3D readout recognition scheme. Such a dual-module MOF-based sensing probe can provide a facile and convenient platform for sensing and multi-analyte identification in environmental monitoring, which may further advance the development of new sensors.

中文翻译：

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基于电化学沉积有序分层金属-有机框架的双模块传感器用于解码有机蒸气

构建传感平台以有效识别具有相似物理特性的有机蒸气仍然是一个挑战。在这项研究中，由镧系金属有机框架（MOF）组成的三维（3D）有序分层薄膜通过采用自下而上的方法进行阴极电化学沉积。该薄膜呈现出由有序大孔结构产生的明亮结构色和源自镧系金属MOF的发光色。生成的 MOF 薄膜在反射和荧光模式下检测六种不同的挥发性有机胺时表现出不同的光学响应，从而实现了前所未有的 3D 读出识别方案。这种基于双模块MOF的传感探针可以为环境监测中的传感和多分析物识别提供一个简单方便的平台，这可能会进一步推动新型传感器的发展。