Removal of Hexavalent Chromium Ions from Aqeous Medium using Chitosan Magnetic Nanocomposite Modified with Hexamine. Diyala Journal of Engineering Sciences , [S. l.], v. 13, n. 1, p. 34–48, 2020. DOI: 10.24237/djes.2020.13104. Disponível em: https://djes.info/index.php/djes/article/view/23. Acesso em: 3 apr. 2025.