Construction of UiO-NH2@TiC Schottky Junction and Their Effectively Photocatalytic and Antibacterial Performance

The hydrophilic Ti 3 C 2 , typical MXenes containing surface functional groups, possess excellent conductivity, was mainly applied in supercapacitors. However, it had not obvious photocatalytic and antibacterial activity because of high electron hole-pair recombination rate and concentration dependence. In this work, a novel MXenes-based Schottky junction (UiO-NH 2 @TiC) was fabricated by a simple solvothermal method using Ti 3 C 2 as the conductive carrier and UiO66-NH 2 as positively charged nano-MOFs (metal organic frameworks). After verifying the synthesis of UiO-NH 2 @TiC by SEM (scanning electron microscopy), EDS (energy dispersive spectrometer), XRD (powder X-ray diffraction), and FT-IR (Fourier transform infrared spectroscopy), its photochemical properties were also measured. Then, the photocatalytic antibacterial activity and the photodegradation behavior were investigated. The results indicated that UiO-NH 2 @TiC Schottky junction could not only remove the remaining antibiotics in wastewater (91%), but also effectively inhibited the growth of bacteria, and the inhibition rate of E. coli ( Escherichia coli ) and S. aureus ( Staphylococcus aureus ) more than 95% under visible light irradiation. In summary, it is an effective strategy for constructing functional Schottky junction. What’s more, the obtained Schottky junction has great potential in practical application.