Synthesis of rutile tatania by heterogeneous nucleation methods

Rutile tatania powders were synthesized in aqueous solutions, avoiding the appearance of TiO2 in anatase form, by heterogeneous nucleation methods wit h SnCl2. 2H(2)O(method A) and SnCl4. 5H(2)O (method B) as the raw materials respectively. The effects of nuclei and peptizing conditions on the struct ures of products were investigated, The mechanisms of nucleation were studi ed by comparing the results of the two different raw materials. The content of SnO2 in the samples with a full rutile structure was 10% and 8% (molar fraction) for the two methods respectively.