Figure 7

The effect of contact time on the removal efficiency of RO16 onto lignocellulosic sawdust-Fe/Zn bio-nanocomposite, and the adsorption capacity at different times (initial pH 4, 20 mg lignocellulosic sawdust-Fe/Zn bio-nanocomposite, 100 mL solution, initial RO16 concentration 10 mg L−1, and agitation speed 50 rpm).