SYNTHESIS METHOD OF TRANSITION METAL DOPED PEROXOTITANIC ACID

摘要

The present invention relates to a transition metal is added to the titanium peroxide sol process for producing a coating agent for photocatalyst. The peroxide aqueous titanium manufacturing method is deterministic and dispersibility are excellent peroxide titanium (metal / TiO ₂₎ in the manufacture of a sol, comprising the steps of: an organic or inorganic titanate progress of the hydrolysis, peptizing reaction, after the step a metal salt It was added and include neutralization, the washing step and, by using the aqueous solution of hydrogen peroxide herein to prepare a stable peroxide titanium in a neutral region (metal / TiO ₂₎ sol via the secondary peptizing reaction. In this way, neutral (pH = 7-8) can be produced a stable sol of titanium dioxide in the vicinity can solve the corrosion problem, the shortcomings of the existing coating strongly acidic titanium oxide sol may have its application range wider.