以钛酸丁酯为钛源,La2O3和Y2O3作为掺杂物,掺杂比例为0、0.50%、1.00%、1.50%和2.00%(质量分数).采用一步合成法制备金红石相TiO2粉体、La/Y掺杂金红石相TiO2粉体.利用XRD、UV-Vis、Zeta电位和粒度等手段表征了光催化剂的晶体结构、光吸收能力等方面的物理化学性质.以甲基红为降解模型,其反应动力学结果表明,1.00%(质量分数)La掺杂金红石相TiO2吸附效果最好,其与实验结论相吻合.
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