green synthesis of titanium(iv) oxide with covalent organic frameworks hybrid under ultrasonic irradiation

In this study, the novel titanium(iv) oxide:covalent organic frameworks (tio2:cof) hybrid were preapred and characterized by using various methods. in this regard, the functionalization of tio2 nanoparticles (nps), cof, and tio2:cof hybrid were validated by fourier transform infrared spectroscopy (ft-ir). in addition, field emission scanning electron microscopy (fe-sem) analysis further confirmed the morphology of each sample. while in the case of tio2 nps the spherical morphology was observed, for cof the whisker-shaped images implied its successful synthesis. more importantly, after the preapartion of tio2:cof hybrid, the complete change was observed in morphology, indicating the prepared suitable hybrid. on top of that, x-ray diffraction spectra (xrd) was conducted at low and wide angles. accordingly, the presence of tio2 nps between the layers of formed cof was confirmed