TY JOUR TI SORPTION OF LEAD (II) IONS BY DIOCTAHEDRAL SMECTITE FROM AQUEOUS SOLUTIONS KW SORPTION KW PB(II) KW SMECTITE KW DEGREE OF EXTRACTION KW SORPTION ISOTHERM KW LIMITING SORPTION KW EFFECTIVE SORPTION ENERGY KW LANGMUIR MODEL KW DUBININ-RADUSHKEVICH EQUATION JO Herald of Technological University AU Smirnov, A.K. AU Yandimirov, M.A. AU Smirnova, L.G. AU , .. PY 2026 IS 29 PB Kazan National Research Technological University