Yatim Lailun Ni’mah*, Nabila Eka Yuningsih, Suprapto Suprapto
Journal of Renewable Materials, Vol.11, No.6, pp. 2913-2924, 2023, DOI:10.32604/jrm.2023.025431
Abstract The adsorption of Pb(II) on silica gel synthesized from chemical glass bottle waste has been studied. The effect of
independent variables (adsorbent dose, initial concentration of Pb(II), contact time, and pH) on the Pb(II)
removal from water was evaluated and optimized using the Response Surface Methodology (RSM). Under optimized conditions (adsorbent dose: 20 mg; contact time: 30 min; initial Pb(II) concentration: 120 mg. L−1
; and pH:
8), the removal of Pb(II) was 99.77%. The adsorption equilibrium data obtained from the batch experiment were
investigated using different isotherm models. The Langmuir isotherm model fits the experimental data. This
shows that… More >
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