
Chimica Techno Acta, Год журнала: 2024, Номер 12(1)
Опубликована: Дек. 26, 2024
In this study, we prepared hydrochar (HCSP) from Spirogyra sp. algae (SP) as adsorbent to eliminate malachite green (MG) dye and conducted the regeneration study. SP HCSP were characterized using FTIR, XRD, SEM, BET. The adsorption performance was evaluated under various conditions of pH, contact time, concentration, temperature. optimum at pH 8 for MG adsorption. suitable kinetics model PSO, isotherm tended be Freundlich model. maximum capacity (Qmax) obtained Langmuir calculation 30 °C, 34.96 mg/g 99.01 mg/g, respectively. thermodynamic parameters indicated endothermic spontaneous processes, with exhibiting greater spontaneity than SP. Regeneration studies demonstrated that materials could reused up 4th cycle remaining efficiency 69.37% 49.30%, Compared SP, has better capacity.
Язык: Английский