“Comparative Study on Batch Adsorption of Pb2+, Cd2+ and Ni2+ onto Corn Cob Charcoal and Activated Silica: Kinetic and Characterization Studies”. Communication In Physical Sciences, vol. 13, no. 2, Feb. 2026, pp. 223-45, https://journalcps.com/index.php/volumes/article/view/810.