Does anyone know the refractive index of TiO2 P25?

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Amr Hessein

Semyon Chervinsky, please did you have a reference for this number?

Sorry Semyon Chervinsky, I did not see the attached pdf from the first time

Pavel Moskovkin

Have you tried to find it in Handbook of Optical Constants of Solids (Edited by:Edward D. Palik)? http://www.sciencedirect.com/science/book/9780125444156

Roman Kubrin

You should find out the VOLUME ratio of anatase to rutile and calculate an estimate. in any case it will be something in between these two and depend on the wavelength of interest too. But how are you going to account for mesoporosity?

If pores are not large enough might be it is possible to use Bruggeman's effective media theory?