Modification on TiO₂-a Photosensitive Material

Abstract:

TiO₂, as photosensitive materials, has attracted much attention owing to its potential application in the solution of environmental pollution during the past decades. Four doped TiO₂ systems were constructed and studied by using the first principle based Density Functional Theory .The results indicate that P-doped and N-doped TiO₂ all have better light absorption in the visible light area than pristine TiO₂ although the band gap of N-doped system reduced less. However, the band gap of F-doped and Cl-doped TiO₂ increase a little, which causing the absorption to decrease. We suggest from the results that the P atom and N atom are valuable in the modification of TiO₂.

• Periodical: Key Engineering Materials (Volumes 579-580)
• Pages: 148-152
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.579-580.148
• Online since: September 2013
• Authors: Miao Sun, Yong Hu, Hua Guo
• Keywords: Dope, Photosensitive Material, TiO₂

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