Sol–gel derived poly(vinyl alcohol)-3-(2-aminoethylamino) propyl trimethoxysilane: Cross-linked organic–inorganic hybrid beads for the removal of Pb(II) from aqueous solution
Keywords: لانگمیر و فروندلیچ ایزوترم; Adsorption; Pb(II) ion; Langmuir and Freundlich isotherms; PVA-AEAPTMEOS beads; Cross-linking