link

https://aiche.onlinelibrary.wiley.com/doi/abs/10.1002/ep.13613

Tavakol, H., Momeni, M.M. and Mohammadi, B., 2021. Low‐temperature preparation and photoelectrochemical properties of TiO2 nanotubes‐graphene‐CNT hybrid structure. Environmental Progress & Sustainable Energy, p.e13613.

Hossein Tavakol, Mohamad Mohsen Momeni, Baset Mohammadi

Abstract

In this study, by examining various growth temperature and time, graphene sheets and CNTs have been grown on the surface of TiO2 nanotubes to produce TiO2-carbon hybrid material (TNG) using the chemical vapor deposition method. The produced hybrid structures were analyzed with FESEM, EDS, Raman, XRD, and TGA. Then, photoelectrochemical properties of prepared films were evaluated by measurements of the photocurrent density-voltage and photocurrent density-time curves. The TiO2 nanotube-graphene hybrid material sample (sample TNG10) exhibited enhanced photoelectrochemical water-splitting performances, compared with bare TiO2 nanotube. The photoelectrochemical results revealed that optimum graphene incorporated into TiO2 nanotubes played a crucial role. Therefore, this hybrid catalyst could be considered as a potential candidate for industrial water splitting.