Synthesis and Characterization of Activated Carbon from Agrowastes for the Removal of Acetic Acid from an Aqueous Solution

Table 2

Comparison of acetic acid adsorption on various adsorbent materials.

Adsorbent	Temperature (K)	Initial concentration (gL^-1)	Adsorbent dose (g)	Adsorption capacity ( (mg.g^-1))	Isotherm	Kinetic model	Reference
Hydrotalcites	303	-	-	91.39-125.65	Freundlich	Pseudosecond-order	[39]
Zeolite	308	11.8-71.8	5	405.5	Freundlich	Pseudosecond-order	[37]
Activated carbon	300	0.42-23.7	0.1	55.2-939.8	Temkin, Freundlich	-	[40]
Hydrotalcite MG7Oc	323	1.0-7.0	0.036	145.3	Sips	-	[41]
Ion-exchange resin	308	0.15-0.25	-	405.5	Langmuir	Pseudosecond-order	[42]
Metal organic frame works nanotubes	298	9.9-30.4	0.10	270.5	Freundlich	Pseudo-second-order	[43]
Multiwall carbon nanotubes	298	0.037-0.117	0.02	5.7	Langmuir	Pseudo-second-order	[44]
SB-AC	305	0.2-1.0	0.4	0.661-4.56	Dubinin-Radushkevich	Pseudo-second-order	[1]
Fly ash	298	0.05-1.0	5-50	7.00	Langmuir	Pseudosecond-order	[45]
FA-CAC	304	600-6000	12-28	21.9-71.6	Freundlich, Langmuir	Pseudofirst-order	[2]
RH-AC	298	1.0-2.0	0.1	0.11-0.25	Freundlich, Frenkel–Halsey–Hill	Pseudosecond order	This study
PP-AC	298	1.0-2.0	0.1	0.08-0.24	Freundlich, Frenkel–Halsey–Hill	Pseudosecond-order	This study