帮忙解决一下，谢谢~

　　帮忙解决一下，谢谢~。[1] Zhang H, Ouyang S, Li Z, et al. J. Phys. Chem. Solids, 2006,67:2501-2505
[2] Liu H, Yang W, Ma Y, et al. Appl. Catal. A, 2006,299:218-223
有没有人知道这两篇文章的题目啊？
===有问必答===
Preparation, characterization and photocatalytic activity of polycrystalline Bi2O3/SrTiO3 composite powders

Extended visible light response of binary TiO2-Ti2O3 photocatalyst prepared by a photo-assisted sol–gel method