Table 4 Comparison of MB and RhB adsorption on g-C₃N₄ nanosheets with reported adsorbents.

SN	Adsorbent	Dye	Model studied		Best fitted model		Surface area (m²/g)	Adsorption capacity (mg. g⁻¹)	References
SN	Adsorbent	Dye	Kinetics	Isotherm	Kinetics	Isotherm	Surface area (m²/g)	Adsorption capacity (mg. g⁻¹)	References
1	MgTiO₃@ g-C₃N₄	RhB	PFO, PSO, ID, E	L, F, T	PSO	L	107	232.02	⁴¹
2	g-C₃N₄@ZnO	BF	PFO, PSO, E	L, F, D-R, T, F-H-H	PFO	F	8.30	2.697 × 10⁵	⁴⁸
3	Cs-Co₃O₄@g-C₃N₄	MG	PFO, PSO, ID	L, F, T	PSO	L	28.68	1472	⁴⁹
4	V₂O₅- g-C₃N₄	CV	PFO, PSO, ID	L, F	PSO	L	61.04	664.65	⁵⁰
5	Mn@ZIF–8	MO	PFO, PSO	L, F, D-R, T	PSO	L	1257	406.50	⁵¹
6	Ni/Co MOF	MO	–	L, F, D-R,	–	L	1156	151.74	⁵²
7	g-C₃N₄	MB	PFO, PSO, ID, LF	L, F, D-R, T	PSO	F, D-R	101.2	2.251 × 10⁷	This work
7	g-C₃N₄	RhB	PFO, PSO, ID, LF	L, F, D-R, T	PSO	F, D-R	101.2	9.226 × 10⁷	This work

BF Basic Fuchsin, CV Crystal Violet, MG Methyl Green, MO Methyl Orange, PFO Pseudo−first−order, PSO Pseudo−second−order, ID Intraprticle diffusion, LF Liquid film, E Elovich, L Langmuir, F Freundlich, D−R Dubinin–Radushkevich, T Temkin Isotherm.

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