|
|||||
|
|
Visible light active anion codoped sol gel titania photocatalyst for pollutant degradation |
|
| Authors: | Padikkaparambil Silija Zahira Yaakob Mohd A. Yarmo Sankaran Sugunan Narayanan N. Binitha |
| Affiliation: | (1) Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, University Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;(2) Department of Chemistry, Sree Neelakanta Government Sanskrit College Pattambi, Palakkad, Kerala, 679306, India;(3) Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;(4) Department of Applied Chemistry, CUSAT, Kochi, 682088, India; |
| Abstract: | The photocatalytic activity of carbon and nitrogen co-doped sol gel TiO2 is tested using methyleneblue degradation and it is found that the activity drops sharply with increase in calcination temperature. The system calcined at 300 °C was found to be the most efficient in dye degradation and can be considered as a good candidate for the future photocatalytic applications. This highly active anion doped TiO2 is found to show amorphous nature. Elemental analysis reveals the co existence of C and N dopants, which may be responsible for the high efficiency of the catalyst. Visible absorbance is evident from the UV–VIS Diffuse Reflectance Spectra. The N2 adsorption desorption studies show the H1 hysteresis loops and a well defined mesoporous nature is observed for the catalytic systems prepared in the presence of urea. XPS analysis indicates the presence of Ti–C and Ti–N bonds which are responsible for the visible light activity of the photocatalysts. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |