Table 7: Comparison of adsorption capacities of Cr(VI)with adsorbents reported in the literature.

Adsorbents	Monolayer Adsorption Capacity (mg/g)	pH	Reference
ZeoliteNaX	6.414	4	[75]
Jordanian pottery materials	28.8	3	[76]
Olive stone activated carbon	25.6	1.5	[77]
Pine needles	40	3	[78]
Ore	15.67	2	[79]
Clay	14.43	2	[79]
Magnetic-poly(divinylbenzene-vinylimidazole) microbeads	4.353	2	[80]
Activated carbon	18.08	2.5	This study