Table 3.

Results of various research regarding the effect of initial adsorbent dosage.

Adsorbent	Dyestuff	Adsorbent Dosage	Efficiency Range (%)	Quantity in Equilibrium Range (qe mg/g)	Reference
walnut shell	Methylene Blue	0.5–2 g/L	-	178.93–47.51	[195]
magnetic alginate/rice husk bio-composite	Methylene Blue	0.1–1 g	15–89	338–145	[196]
Tunisian smectite clay	Cristal Violet	0.05–0.3 g/L	10–100	-	[197]
modified activated carbon (PABA@AC)	Malachite Green	10–50 mg	31.3–86.6	11.67–6.5	[198]
commercial natural activated plant-based carbon (CNAC)	Methylene Blue	0.5–1.5 g	46–78	-	[190]
commercial natural activated plant-based carbon (CNAC)	Eosin Yellow	0.5–1.5 g	51–70	-	[190]
commercial natural activated plant-based carbon (CNAC)	Rhodamine B	0.5–1.5 g	52–60	-	[190]
calcined eggshell	Remazol Brilliant Violet-5R	0.5–2 g	89.83–96.3	3.59–0.96	[134]
calcined eggshell	Remazol Red F3B	0.5–2 g	92–93.67	3.68–0.94	[135]
calcined eggshell	Remazol Blue RR	0.5–2 g	92–93.33	3.68–0.94	[135]
eggshell	Remazol Brilliant Violet-5R	0.5–2.5 g	74.67–93.85	2.96–0.75	[51]
activated carbon from lotus leaves	Methylene Blue	0.5–10 g/L	82.84–98.032	16.57–0.98	[192]
municipial solid waste compost ash	Reactive Red 198	0.5–2 g/L	79.25–92.92	-	[193]
natural clayey composite	Basic Navy Blue 2RN	0.2–1.2 g/50 mL	78–97	-	[199]
natural clayey composite	Drimaren Yellow CL-2R	0.2–1.2 g/50 mL	87–97	-	[199]
geopolymer	Methylene Blue (10−5 M)	0.05–0.1 g	79.8–85.6	-	[200]
mucilage of Salvia seeds	Cationic Blue 41	0.5–4 g/L	34.2–53.9	34.2–6.74	[201]
raw petroleum coke	Congo Red	4–24 g/L	~10–60	-	[202]
activated petroleum coke	Congo Red	4–24 g/L	~15–70	-	[202]