In this paper, we report the synthesis of g-C 3 N 4 -TiO 2 hybrid photocatalyst by using the simple, cost-effective and eco-friendly process. The development of TiO 2 nanoflakes on the surface of g-C 3 N 4 nanosheet was carried out by the in situ sol-gel method. The XRD patterns reveal the anatase phase of TiO 2 in the g-C 3 N 4 -TiO 2 nanocomposite. HR-TEM images confirm the size of the nanoflakes in the range of 15-25 nm. The O-Ti and Ti-O-Ti bridge produces the absorption band from 560 to 710 cm −1 for TiO 2 ; it is due to stretching vibrations and the specific band at 805 cm −1 marks the sym-triazine ring of g-C 3 N 4 . UV-Vis spectra show a redshift from 394 to 471 nm in the nanocomposite concerning a decrease in band gap. From BET, it is seen that the surface area of bare TiO 2 and g-C 3 N 4 -TiO 2 are 66 and 146 m 2 g −1 , respectively. The nanoflakes morphology of g-C 3 N 4 -TiO 2 was confirmed from FE-SEM images. The EDS spectrum confirms C, N, Ti, and O elements which prove the purity of the nanocomposite. The g-C 3 N 4 -TiO 2 (1:4) acquired a noticeable enhancement of photocatalytic activity which is double for methyl orange degradation than TiO 2 .

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