Equilibrium, kinetic and thermodynamic study for the efficient removal of malachite green dye onto untreated Morus nigra L. (mulberry tree) leaves powder and its biochar. IJCT [Internet]. 2023 May 12 [cited 2026 May 26];30(2):165-72. Available from: https://or.niscpr.res.in/index.php/IJCT/article/view/1273