Application of modified green algae Nannochloropsis sp. as adsorbent in the simultaneous adsorption of Methylene Blue and Cu(II) cations in solution

Table 3 Adsorption isotherm parameters of ME and Cu(II) cations on ASN and ASN-MPs at 27 °C, pH 7, and 90 min of contact time

Adsobent-adsorbate	q_exp × 10⁻¹ (mmol g⁻¹)	Langmuir			Freundlich
Adsobent-adsorbate	q_exp × 10⁻¹ (mmol g⁻¹)	q_m × 10⁻¹ (mmol g^− 1)	K_L × 10^− 3 (L mg^− 1)	R²	K_F (mg g^− 1) (L mg^− 1)^1/n	n	R²
ASN-ME	1.33 ± 0.07	2.37	1.46	0.778	1.10	1.42	0.994
ASN-Cu(II)	2.52 ± 0.05	5.49	2.01	0.992	2.20	1.53	0.980
ASN-MPs-ME	1.67 ± 0.09	2.92	1.97	0.785	1.35	1.13	0.992
ASN-MPs-Cu(II)	3.13 ± 0.06	8.77	2.44	0.981	1.67	1.02	0.954

ISSN: 2468-2039