Fig. 3
Effect of contact time on adsorption of Cr(VI) by BP, RSS, and CKS (adsorption conditions: concentration of Cr(VI), 50 ppm; pH 2; adsorbent dosage, 10 g/L; temperature, 25 ± 1 °C; λ = 540 nm)
Fig. 3 | Journal of Analytical Science and Technology