Table 3.

The parameters of isotherm models for the adsorption of CR onto the prepared nanocomposites.

Model	Adsorbent	R2	Parametersa
Langmuir	NC-1%	0.8780	kL = 6.2 × 10–3	qmax = 200.0
	NC-3%	0.9090	kL = 8.2 × 10–3	qmax = 204.1
	NC-5%	0.8811	kL = 11.3 × 10–3	qmax = 208.3
Freundlich	NC-1%	0.9835	kF = 1.479	n = 1.157
	NC-3%	0.9810	kF = 1.972	n = 1.172
	NC-5%	0.9868	kF = 3.041	n = 1.245
D–R	NC-1%	0.8579	B = 1.45 × 10–7	qmax = 59.4
	NC-3%	0.8388	B = 1.48 × 10–5	qmax = 65.3
	NC-5%	0.7464	B = 1.51 × 10–5	qmax = 68.3

^aThe units are mentioned in “Initial CR concentration and adsorption isotherm”section.