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Fig. 4 | Nanoscale Research Letters

Fig. 4

From: Silica Aerogel-supported Hydrozincite and Carbonate-intercalated Hydrotalcite for High-efficiency Removal of Pb(II) Ions by Precipitation Transformation Reactions

Fig. 4

Adsorption isotherms of Pb(II) on SA-Zn-HZ and SA-Zn3Al-HT (a), Langmuir (b), and Freundlich (c) adsorption isotherm models fitting for Pb(II) adsorption. Experiment conditions: initial Pb(II) concentration 100 ~ 1000 ppm; adsorbent dose 0.5 g L−1; contact time 24 h, solution pH 6.0 ± 0.1; temperature 30 °C

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