Oxidized Mangosteen Peel-Derived Hydrochar for the Removal of Methylene Blue. Hungarian Journal of Industry and Chemistry, [S. l.], v. 53, n. 1, p. 1–7, 2025. DOI: 10.33927/hjic-2025-01. Disponível em: https://hjic.mk.uni-pannon.hu/index.php/hjic/article/view/1243. Acesso em: 12 apr. 2025.