▎ 摘　　要

In this work principal component analysis (PCA) was used to study the effect of batch, reduction temperature, TiO(2)content and UV-C irradiation on the surface energy, -polarity and interlayer spacing of photoactive TiO2/GO composite membranes. Two PCA models were successfully developed. The first PCA model shows a negative correlation between reduction temperature and d-spacing. Less hydrophilic TiO2/GO membranes were obtained at 160 degrees C compared to membranes reduced at 140 degrees C. Also, the surface polarity and surface energy were significantly enhanced by the addition of higher TiO(2)content. The second model explain the effect of UV-C activation on the surface energy of the TiO2/GO composite membranes. For the GO membranes containing TiO(2)a significant increase in surface energy and -polarity was observed after UV-C activation. Moreover, a positive correlation between the TiO(2)content and surface energy after UV-C activation was observed. Higher TiO(2)content results in higher surface energy. GO batches prepared by different groups was not found to significantly affect the properties of the TiO2/GO composite membranes suggesting that the preparation method is relative robust.