ZnO-PLLA Nanofiber Nanocomposite for Continuous Flow Mode Purification of Water from Cr(VI)

Figure 4

Effect of Contact Time: Cr(VI) initial concentration = 2.3 mg L⁻¹, initial solution pH = 3.5, total volume = 100 mL, and flow rate = 2 mL min⁻¹.