Selective Adsorption of Cationic Dyes by Hydrochar Derived from Spirogyra sp. Algae via Temperature-Varying Hydrothermal Carbonization. - Badaruddin, Muhammad; Hanum, Laila; Melwita, Elda; Wibiyan, Sahrul; Hanifah, Yulizah; Lesbani, Aldes (Environment & Natural Resources Journal, 2025)