Tb<sup>3+</sup>-Doped Ag-MOFs for fluorescent detection of formaldehyde in a novel smartphone platform and its removal applications in milk products and wastewater
Mengwen Li, Ao Shen, Man Du, Xiaohui Hao, Hongquan Wang, Xiaoyu Du, Shufeng Ma, Jiaxin Yuan, Yunxu Yang
Abstract
. The MOF sensor shows broad dynamic ranges of 0.1-1 mM for FA with the detection limit of 1.9 μM. For online and real-time detection of FA, a portable smartphone platform was employed to analyze the RGB values of the fluorescence by a smartphone application. By incorporating this probe into a polyacrylonitrile (PAN) layer, we synthesized a film composite that could effectively remove FA in real samples including milk and chemical factory wastewater, and the removal rate reached 98.52% and 95.38% respectively. Moreover, the potential of the film to remove gaseous FA was confirmed by experiments as well.
Topics & Concepts
FormaldehydeFluorescenceWastewaterDopingChemistryNuclear chemistryCombinatorial chemistryWaste managementMaterials scienceOrganic chemistryOptoelectronicsPhysicsQuantum mechanicsEngineeringGas Sensing Nanomaterials and SensorsAdvanced Nanomaterials in CatalysisMetal-Organic Frameworks: Synthesis and Applications