Ti0.8B0.1P0.1O2 Solid Solution with the Anatase Structure

The homogeneous solid solution Ti1-x(BP)(x/2)O-2 (0 <= x <= 0.2) with the anatase structure was obtained by gel combustion with polyvinyl alcohol. The possibility of combined replacement of titanium atoms in the anatase structure with boron and phosphorus was determined by studying samples of the Ti1-x(BP)(x/2)O-2 series (0 <= x <= 1, step x = 0.1) by powder X-ray diffraction and IR spectroscopy. The obtained data were used to construct the TiO2-B2O3-P2O5 phase diagram describing phase equilibria involving Ti1 - x(BP)(x/2)O-2 solid solution (0 <= x <= 0.2), Ti5P4O20, TiP2O7, BPO4, and the melt. Analysis of the absorption spectra of Ti0.9B0.05P0.05O2 and Ti0.8B0.1P0.1O2 in the 290-1000 nm range demonstrated that the equimolar introduction of B and P into anatase shifts the absorption edge to the red region. The specific surface area, skeletal density, and the particle size of Ti0.8B0.1P0.1O2 with the anatase structure were determined.

Automated summary

The study found that a homogeneous solid solution with an anatase structure can be synthesized through gel combustion with polyvinyl alcohol. Analysis of Ti1-x(BP)(x/2)O-2 series samples revealed the possibility of combined replacement of titanium atoms with boron and phosphorus in the anatase structure, leading to the construction of a corresponding phase diagram.