Table 1.

Comparison of the maximum monolayer adsorption capacities of azo-dye Orange II onto various adsorbent.

Adsorbent	T (K)	Q0 (mg·g−1)	Reference
Porous titania aerogel	323	420	[9]
Modified bentonite	306	239.5	[10]
Activated carbon (xerogels)	323	499.1	[11]
Activated carbon (fibers)	283	438	[12]
Activated carbon	303	384.3	[13]
Chitosan bead (cross-linked)	303	1940	[14]
Phosphoric acid-modified clam shell	286	1017.1	[15]
Amino-functionalized titanosilicate	298	189.1	[16]
Ammonia-tailored ordered mesoporous carbon	298	596	[17]
Carbon-alumina core-shell spheres	298	210	[18]
Nanoporous carbon from tomato waste	323	312.5	[19]
Canola stalks	298	25.6	[20]
Clay–alginate composites	298	980.5	[21]
Apricot shell activated carbon	298	13.98	[22]