Indigo Carmine and 2,6-Dichlorophenolindophenol Removal Using Cetyltrimethylammonium Bromide-Modified Palm Oil Fiber: Adsorption Isotherms and Mass Transfer Kinetics

Table 3

Comparison of maximum adsorption capacities of some adsorbent materials for IC and 2,6-DCPIP, from the literature.

Adsorbent materials	Adsorbate	(mg·g^−1)	References
Palm oil fiber	IC	128.444	Present work
Pecan nut shells	IC	13.408	[59]
Calcium hydroxide	IC	0.950	[47]
Montmorillonite	IC	40.000	[60]
Fe-zeolitic tuff	IC	32.830	[61]
Carbonaceous material	IC	92.830	[61]
Chitin	IC	5.783	[62]
Chitosan	IC	71.818	[62]
Rice husk ash	IC	65.908	[46]
Layered double hydroxide	IC	55.500	[63]
Brazil nut shells	IC	1.090	[64]
Palm oil fiber	2,6-DCPIP	75.143	Present work
Palm tree trunk	2,6-DCPIP	51.299	[3]