Abstract: The Cu2O/TiO2 composites with two different morphologies were synthesized through adjusting the concentration of tetra-n-butyl titanate (TBOT), and were subsequently characterized by means of X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The resultant composites’ antibacterial properties and ammonia removal performances were also determined by the experiment. It has been observed that the membranous TiO2 turns to granuliform on the surface of Cu2O nanoparticles while the TBOT concentration increased from 0.04% to 0.12%. On the other hand, compared with the pure Cu2O, the Cu2O/TiO2 composite with membranous surface exhibited better antibacterial properties, and the antibacterial properties of the sample with granuliform surface slightly reduction. Moreover, compared to pure Cu2O, the Cu2O/TiO2 composites with either membranous or granuliform surface performed more actively in ammonia removal, but the latter had a better removal performance than the former.
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