Research Article

Mechanistic Study of Adsorption of Acid Orange-7 over Aluminum Oxide Nanoparticles

Table 2

Adsorption isotherm and statistical comparison values of adsorption isotherm.

Isotherm model Isotherm parameters 303 K313 K323 K

Freundlich 1.2231.2283.154
0.93351.16642.0242
0.98010.97620.9957
Std error0.009990.03170.0023
Std deviation 0.024470.077660.0023
−11.568−4.492 7.954

Langmuir 0.97660.85090.2086
1.31553.942511.517
0.980170.95160.9957
Std error0.003950.00370.00353
Std deviation 0.01090.009060.00806
1.2652.9456.332

Temkin 0.9990.9970.995
91.72882.71268.135
0.933770.95420.9884
Std error4.52362.82965.0095
Std deviation 11.08056.931312.271
−8.646−13.527−9.111