Abstract
A novel strategy is developed to solvothermally synthesize a Cu-based metal-organic framework (MOF), known as a copper terephthalate MOF, using terephthalic acid (TPA) as a linker which was extracted from small pieces of waste soft-drink bottles via alkaline hydrolysis. The extracted TPA as well as the obtained MOFs were all characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, ultraviolet–visible spectroscopy, and Fourier-transform infrared spectroscopy. The Cu-MOF was applied to the detection of volatile organic compounds (VOCs) such as acetone (detection limit of ∼20 ppm) based on the photocatalytic principle under ultraviolet irradiation at room temperature. Cu-MOF procured from plastic waste is thus validated as a promising material for practical sensing applications.
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