Figure 8.
Effect of time on percentage removal of (a) MB and (b) MO in the presence of GOPSr-2 (initial MB and MO concentration: 20 mg·L−1; amount of adsorbent (MB): 0.5 mg·mL−1, (MO): 2 mg·mL−1; pH (MB): 9.5, (MO): 7; at room temperature).
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