Characterization of TiO2 NPs/ZnO NSs heterojunction thin film on PTFE substrate growth by dip coating process

In this work, dip coating process (DCP) was used to synthesize TiO2 nanoparticles (NPs). The photocatalytic nanostructured heterojunction was formed on ZnO nanoseeds (NSs) layer grown by radio frequency (RF) sputtering on flexible Teflon (PTFE) substrate. Series of characterizations and analyses reveal the morphology, optical, and structural properties of the nanocomplexes. These include several identified peaks observed by XRD. While, UV-Vis reflectance spectroscopy, photoluminescence (PL), and FTIR were utilized to determine the opto-characteristics, and to observe the presence of functional bonds involved in the growth of the heterojunction thin film. Based on the presented results, the heterostructures relying on a flexible substrate are believed to be highly promising for photocatalytic applications.