“Study on preparation of TiO2 Sol using TiCl4 as a Precursor for catalytic applications”, Vietnam j. catal. adsorp., vol. 7, no. 2, pp. 30–35, Jul. 2018, Accessed: Feb. 28, 2025. [Online]. Available: https://jca.edu.vn/index.php/jca/article/view/634