| abstract |
The invention concerns a method for producing a TiO2 material comprising: previously mixing a titanium alkoxide with an acid; adding water, a phase separator and a source of N to the mixture in order to obtain a TiO2 gel; washing the TiO2 gel with isopropanol; drying and calcinating the TiO2 gel in order to produce the material. The invention also concerns a TiO2 material that is absorbent in the visible spectrum and, in particular, has light absorption at 500 nm that is 50 % greater than that at 400 nm, and the use of same as a photocatalyst for degrading pollutants in air or in water and for cracking water into H2, under radiation in the visible spectrum. |