表面处理对二氧化钛光活性的影响

EFFECT OF THE SURFACE TREATMENT ON THE PHOTOACTIVATION OF TITANIUM DIOXIDE

采用电位法分别测定了二氧化钛经无机盐、金属酞菁配合物表面处理后光活性的变化。结果发现,Mn^(2+),Zn^(2+),Ni^(2+),Co^(2+),Sn^(2+)等的盐对二氧化钛表面处理后,均能使其光活性下降,而金属酞菁配合物则使其光活性上升。

The change of photoactivity of TiO_2 which was treated with mineral salts and metallophthalocyanine complex is determinated using potentiometry. The results show that the photoactivity would decline when TiO_2 was treated with mineral salts containing Mn^(2+), Zn^(2+), Ni^(2+), Co^(2+) and Sn^(2+) and it would rise when TiO_2 was treated with metallophthlocyanine complex.