Isotherm studies on removal of lead(II) ions from wastewater by magnetic carbon synthesised from Euphorbia hirta leaf extract. Indian Journal of Chemical Technology (IJCT), [S. l.], v. 30, n. 5, p. 672–680, 2023. DOI: 10.56042/ijct.v30i5.5214. Disponível em: https://or.niscpr.res.in/index.php/IJCT/article/view/5214. Acesso em: 14 may. 2026.