Table 4. Sorption Capacities Comparison with Other Numerous Sorbents from the Literature.

Sorbent	Experimental conditions	Sorption capacities of CV (mg g–1)	References
Calcium-alginate beads	[solid]/[solution] = 0.4 g L–1, CV concentration = 5.0–500.0 mg L–1, contact time = 120.0 min, T = 293.0 K, pH = 6.0	29.0	(93)
Activated carbon/Fe3O4 magnetic nanocomposite	[solid]/[solution] = 1.25 g L–1, CV concentration = 10.0–80.0 mg L–1, contact time = 60.0 min, T = 298.0 K, pH = 9.0	35.3	(94)
Magnetite nanoparticle decorated reduced graphene oxide	[solid]/[solution] = 0.2 g L–1, CV concentration = 5.0–20.0 mg L–1, contact time: 220.0 min, T = 298.0 K, pH = 10.0	62.0	(95)
Charred rice husk	[solid]/[solution] = 1.0 g L–1, CV concentration = 50.0–1000.0 mg L–1, contact time = 60.0 min, T = 298.0 K, pH = 10.0	62.85	(61)
Xanthated rice husk	[solid]/[solution] = 1.0 g L–1, CV concentration = 50.0–1000.0 mg L–1, contact time = 70.0 min, T = 298.0 K, pH = 10.0	90.02	(61)
Magnetic biochar	[solid]/[solution] = 2.0 g L–1, CV concentration = 50.0 mg L–1, contact time = 240.0 min, T = 303.0 K, pH = 6.0	111.48	(96)
Granular biopolymer-silica pillared clay composites	[solid]/[solution] = 2.5 g L–1, CV concentration = 50.0 mg L–1, contact time = 1440.0 min, T = 318.0 K, pH = 3.0	208.9	(97)
Date palm petioles-biochar	[solid]/[solution] = 1.0 g L–1, CV concentration = 5.0–500.0 mg L–1, contact time: 1440.0 min, T = 303.0 K, pH = 7.0	209.0	(50)
Alginate-Whey composite beads	[solid]/[solution] = 0.4 g L–1, CV concentration = 50.0–500.0 mg L–1, contact time: 8640.0 min, T = 303.0 K, pH = 6.0	220.0	(93)
Magnetic plastic waste-biomass char	[solid]/[solution] = 1.5 g L–1, CV concentration = 10.0–1000.0 mg L–1, contact time: 60.0 min, T = 298.0 K, pH = 10.5	256.41	Present study