Qiu, J.P., D. Wang, Z.Q. He, and S. Song. “Synthesis of Cu-Doped Ti-Containing MCM-41 and Its Photocatalytic Performance for Indoor Air Purification”. Asian Journal of Chemistry 26, no. 8 (April 16, 2014): 2235–2240. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_9_11.