%0 Journal Article %T Investigation of Doped Titanium Dioxide in Anatase Phase. Study ab initio using Density Functional Theory %J Advanced Materials Letters %I International Association of Advanced Materials %Z 0976-3961 %A José Pereira de Oliveira, Paulo %A Castelan Marques, Fabielle %A da Silva Gonçalves, Arlan %A Kelly dos Santos Brito, Greice %A Victorio Andrade, Enzo %A Pedro Dalmaso Pinto, Marcos %D 2020 %\ 01/01/2020 %V 11 %N 1 %P 1-5 %! Investigation of Doped Titanium Dioxide in Anatase Phase. Study ab initio using Density Functional Theory %K Band gap %K DFT %K photocatalysis %K titanium dioxide %R 10.5185/amlett.2020.011459 %X Global warming has generated great concern worldwide. One way to control this problem is to use clean renewable energy new sources. Among the energy sources, we can mention hydrogen gas, produced by water photocatalysis by mean of a semiconductor material. In this work, we report a study about band gap and absorption spectra by mean of the density functional theory of the anatase allotropic form of titanium dioxide doped with Ruthenium. The results indicated systematic decrease of the band gap and increase of the absorbance at the visible region with the increase of the amount of dopant. %U https://aml.iaamonline.org/article_13912_0ceaddbc1d2aabf93ba1a2a09b542648.pdf