|
|||||
|
|
N-doped TiO2 nanoparticles obtained by a facile coprecipitation method at low temperature |
|
| Authors: | A. Sanchez-Martinez O. Ceballos-Sanchez C. Koop-Santa Edgar R. López-Mena E. Orozco-Guareño M. García-Guaderrama |
| Affiliation: | 1. CONACYT-Departamento de Ingeniería de Proyectos, CUCEI, Universidad de Guadalajara, Av. José Guadalupe Zuno # 48, Industrial los Belenes, Zapopan, Jalisco 45100, Mexico;2. Departamento de Ingeniería de Proyectos, CUCEI, Universidad de Guadalajara, Av. José Guadalupe Zuno # 48, Industrial los Belenes, Zapopan, Jalisco 45100, Mexico;3. Escuela de Ingenieria y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey, Nuevo León 64849, Mexico;4. Departamento de Química, CUCEI, Universidad de Guadalajara, Blvd. Marcelino García Barragán # 1421, Guadalajara, Jalisco 44430, Mexico |
| Abstract: | N-doped TiO2 nanoparticles (NPs) were synthesized using a facile synthesis route by coprecipitation method. The effect of the HNO3 volume and calcination temperature on the structural, morphological, optical and surface properties of the N-doped TiO2 NPs was studied. X-ray diffraction analysis showed particles of nanometric size (< 16 nm), which are consistent with HR-TEM micrographs. A slight shift of the absorption edge to higher wavelengths is observed as the HNO3 volume and calcination temperature increases. Both X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FT-IR) show the presence and stability of nitrogen in the N-doped TiO2 structure. The photocatalytic activity of the N-doped TiO2 NPs was assessed by testing the degradation of rhodamine B (RhB) under ultraviolet (UV) and visible light. |
| Keywords: | Synthesis at low temperature Photocatalysis Coprecipitation method |
| 本文献已被 ScienceDirect 等数据库收录！ | |