Wang, Hong, Xiaofang Han, Wenjie Zhang, and Ruyuan Li. “Calcination Effects and Photocatalytic Activity of Porous SiO2-TiO2 Material”. Asian Journal of Chemistry 26, no. 7 (March 31, 2014): 1895–1897. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_8_5.