Investigation of sorption mechanism of methylene blue, congo red and tannic acid from aqueous solutions onto magnetic composite sorbent obtained from alkaline pretreated spent coffee grounds

Open Access

Table 3.

Comparison Of q_m Value Of Different Sorbents For mb, cr, ta Adsorption

Sorbent	Sorbate	Adsorption conditions	q_m, (mmol/g)	References
Fe₃O₄/PVA/APSCGs	MB	pH 9, 25° C, 24 h	0,369	In present study
	CR	pH 4, 25° C, 24 h	0,088
	TA	pH 5, 25° C, 24 h	0,066
Spent coffee grounds	MB	pH 5, 25° C, 12 h	0,059	[21]
Magnetically modified coffee silverskin	MB	pH 6, 20° C, 6 h	1,738	[8]
Magnetically modified spent coffee grounds	CR	pH 4, 25° C, 3 h	0,014	[9]
Zeolite SMZ‐CBC	TA	pH 5,5 25° C, 24 h	0,065	[22]
Nano sorbent Fe₃O₄@SiO₂‐NH₂	TA	pH 6, 25° C, 24 h	0,08	[4]

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.