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. 2016 Oct 3;6:34378. doi: 10.1038/srep34378

Figure 6.

Figure 6

Identification of main effective factors and interaction factors on (a) Cu(II) and (b) Cr(VI) removal by NMGO: (A) pH, (B) temperature, (C) initial concentration of metal ions, (D) CaCl2, (E) HA.