Zinc Oxide Coating Effect for the Dye Removal and Photocatalytic Mechanisms of Flower-Like MoS2 Nanoparticles

Table 1 Equilibrium Parameters for the Adsorption of RhB, MB, MO and Rh6G onto naked MoS₂

	Langmuir Fit			Freundlich Fit
	$ {Q}_e=\frac{Q_{\max }{K}_L{C}_e}{1+{K}_L{C}_e} $			$ {Q}_e={K}_F{C_e}^{\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{$\mathrm{n}$}\right.} $
Dyes	Q _max (mg/g)	K _L(L/mg)	R ²	K _F (mg^1–1/n L^1/n g⁻¹)	n	R ²
RhB	55.22	6.43	0.98506	38.65	4.03	0.8628
MB	28.43	20.15	0.95061	23.10	5.99	0.9741
MO	18.65	0.80	0.97768	8.70	3.46	0.9999
Rh6G	18.79	10.25	0.99207	14.55	7.39	0.9794

Q _e (mg/g) is the amount of dyes adsorbed onto the adsorbent at equilibrium, Q _max (mg/g) is the maximum amount of adsorption, K _L (L/mg) is the Langmuir adsorption equilibrium constant, K _F (mg^1–1/n L^1/n g⁻¹) is the Freundlich constant representing the adsorption capacity, n (dimensionless) is the constant depicting the adsorption intensity

	Langmuir Fit			Freundlich Fit
	\( {Q}_e=\frac{Q_{\max }{K}_L{C}_e}{1+{K}_L{C}_e} \)			\( {Q}_e={K}_F{C_e}^{\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{$\mathrm{n}$}\right.} \)
Dyes	Q _max (mg/g)	K _L(L/mg)	R ²	K _F (mg^1–1/n L^1/n g⁻¹)	n	R ²
RhB	55.22	6.43	0.98506	38.65	4.03	0.8628
MB	28.43	20.15	0.95061	23.10	5.99	0.9741
MO	18.65	0.80	0.97768	8.70	3.46	0.9999
Rh6G	18.79	10.25	0.99207	14.55	7.39	0.9794