Preparation of 2D g-C3N4/TiO2 Heterojunction Nanocomposites for Photocatalytic Applications

Öztürk, Abdullah
Gündoğmuş, Pelin
Bouzıanı, Asmae
Erdoğan, Nursev
In the present study, 2-dimensional (2D) graphite carbon nitride (g-C3N4)/titanium dioxide (TiO2) nanocomposites have been synthesized to enhance visible light photocatalytic activity of TiO2. Synthesis of nanocomposites was done in 2 steps. First, g-C3N4 was realized by heating the melamine (2,4,6- Triamino-1,3,5- triazine) in nitrogen atmosphere. Then, g-C3N4 powder was dissolved in deionized water. Titanium precursor (Titanium tetra isopropoxide) and nitrogen source (HNO3) were mixed and added into g-C3N4 solution in various weight ratios to get g-C3N4/TiO2 nanocomposites of different mass ratios. The microstructural characteristics of the nano composites were examined using X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscope (FESEM) characterization techniques. After synthesis and characterization, photocatalytic activity of the nanocomposites were measured by methylene blue degradation test under UV light source using UV-Vis spectrophotometer. Results revealed that the composites synthesized had comparable photocatalytic activity with a commercially available well known TiO2 nanopowder, Degussa P25
19. Uluslararası Metalurji ve Malzeme Kongresi (2018)


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Solar light sensitive 2-dimensional (2D) graphite carbon nitride (g-C3N4)/titanium dioxide (TiO2) heterojunction nanocomposites were prepared to enhance visible light activity of TiO2. Preparation of the nanocomposites was accomplished by hydrothermal growth of TiO2 nanoparticles on the surfaces of g-C3N4 particles in one step. The g-C3N4 content of the composites varied from 20 to 90 wt%. The composite containing 80 wt% g-C3N4 was additionally subjected to a regulated heat treatment at temperatures...
Citation Formats
A. Öztürk, P. Gündoğmuş, A. Bouzıanı, and N. Erdoğan, “Preparation of 2D g-C3N4/TiO2 Heterojunction Nanocomposites for Photocatalytic Applications,” İstanbul, Türkiye, 2018, vol. 1, p. 551, Accessed: 00, 2021. [Online]. Available: