Synthesis of Titanium Dioxide Nanotubes with Different N-Containing Ligands via Hydrothermal Method

Titanium dioxide (TiO2) nanotubes (TNT) were successfully synthesized using different N-containing ligands via hydrothermal method. Methylamine, ethylenediamine and diethylenetriamine with Ti/ligand molar ratios (1:1, 1:3, 1:5 1:8) prepared. As-synthesized TiO2 without also prepared for comparison purpose. The X-Ray Diffraction patterns confirmed the presence of anatase phase in all samples whereas sodium titanate was only detected containing ligands. Transmission Electron Microscopy images showed that promoted formation TiO2. Based on Tauc Plot, band gap energy shifted addition methylamine, diethylenetriamine. photoluminescence spectra sufficient amount ligands, intensity spectrum decreased, suggesting more nanotube reduction electron hole recombination rate. photocatalytic performance determined through photodegradation Congo red under UV light 6 hours. results suggested among materials, sample which contained ratio 5 gave highest activity 76.71% could be attributed to successful nanotube, its higher surface rate reaction low recombination. Diethylenetriamine efficiency assisting compared methylamine ethylenediamine.