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. 2019 Jun 21;4(6):10834–10844. doi: 10.1021/acsomega.9b00981

Figure 4.

Figure 4

Heavy metal adsorption on nanocomposite at pH values of 3 (●), 4.5 (▲), 6 (⧫): (a) PAM/Na-MMT nanocomposite (1:1) and Ni2+ ions, (b) PAM/Na-MMT nanocomposite (2:1) and Ni2+ ions, (c) PAM/Na-MMT nanocomposite (4:1) and Ni2+ ions, (d) PAM/Na-MMT nanocomposite (1:1) and Co2+ ions, (e) PAM/Na-MMT nanocomposite (2:1) and Co2+ ions, and (f) PAM/Na-MMT nanocomposite (4:1) and Co2+ ions.