Acut E, Anorico NF, Acut D. Optimization of the Removal of Hexavalent Chromium Cr(VI) from Aqueous Solution by Moringa oleifera Bark-Derived Activated Carbon (MOBAC) Using Response Surface Methodology (RSM). Orbital: Electron. J. Chem. [Internet]. 2023 Dec. 29 [cited 2026 Jan. 31];15(4):186-97. Available from: https://periodicos.ufms.br/index.php/orbital/article/view/19352