C. Kusumawardani
The mesoporous nitrogen-doped titania (N-doped TiO2) has been synthesized through a one-step sol-gel method using dodecylamine as pore template and nitrogen source, which were performed with and without reflux. The role of aging time toward pore formation and doping process was also studied by applying 0 and 72 hours of aging time to the resulting solution after the hydrolysis step. The resulting material was characterized using X-Ray Diffraction (XRD), N2 Gas Sorption Analyzer (GSA), and X-ray Photoelectron Spectroscopy (XPS). The result showed that the reflux process played an important role in the doping process, where there is no nitrogen found in the material synthesized without reflux. The aging process also influenced the doping process, where the structure rearrangement is occurred increasing the nitrogen amount that substitutes the oxygen site in the TiO2 lattice, resulting in higher nitrogen content in the TiO2. The reflux process and aging process do not directly affect the pore formation of the TiO2 but applying both processes in the synthesis resulted in a material with a higher specific surface area and a more homogenous mesoporous size and structure. © 2022, Rasayan Journal of Chemistry, c/o Dr. Pratima Sharma. All rights reserved.
Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta, 55283, Indonesia
