Ultrasound-assisted has been provided a facile novel route synthesized nanostructures of Cu₂(bdc)₂(bpy) compound by a sonochemical irradiation process and characterized by XRD, FT-IR, TGA, and FE-SEM analysis. Herein, we report the recognition of fluorescent Cu-based three-dimensional nanostructures MOF, [Cu₂(bdc)₂(bpy)], (1; H₂bdc ​= ​1,4-benzene dicarboxylate; bpy ​= ​4,4ʹ-bipyridine) for greatly sensing and selective of tetrahydrofuran (THF) small molecules in water aqueous solution. 1 shows a quick exploration of excellent solvent-relative luminescent spectra by emission intensity regarding quenched direction THF small molecule by a reply of time <1 ​min. As well as, the static quenching is calculated to be 11,181 ​M⁻¹ by the fluorescence titration experiments in low concentration of THF small molecules and with a detection limit of THF to be calculated at 0.0008 ​μM. The antibacterial activities of Cu₂(bdc)₂bpy (1) were tested against gram-positive and gram-negative species. The as-synthesized 1 exhibited excellent antibacterial effectiveness against Escherichia coli and Staphylococcus aureus. This project is one of the first samples of a metal-organic framework based luminescent sensor as an efficacious multipurpose fluorescence component that can utilize for selective detection of THF small molecules and antibacterial activity.