Efficient removal of methyl orange using magnesium oxide nanoparticles loaded onto activated carbon
نویسندگان
چکیده
ABSTRACT. In this work, an activated carbon composite made with magnesium oxide nanoparticles (MgONP-AC) was effectively utilized for methyl orange (MO) adsorption. The effect of pH (6-10), mass MgONP-AC (0.1-0.3 g/L), initial MO concentration (10-30 mg/L), and temperature (283-323 K) on removal investigated using a central rotatable experimental design based the response surface technique (RSM) at equilibrium agitation period 60 min. studies predicted optimal 98.99% 7.68, dosage 0.24 g/L, starting 15 mg/L, 313 K. Furthermore, artificial neural network (ANN) to simulate adsorption, it properly mean squared error (MSE) R2 testing data. ANN predicts maximum 99.63% = 0.9926. kinetic results suited pseudo-second order equation, data from investigations corresponded well Langmuir isotherm (maximum uptake capacity qmax 346 mg/g). Endothermic, spontaneous, physical adsorption were discovered during thermodynamic investigations.
 
 KEY WORDS: Adsorption, Artificial network, Experimental design, isotherms, Kinetics, Methyl orange, MgONP-AC
 Bull. Chem. Soc. Ethiop. 2022, 36(3), 531-544. DOI: https://dx.doi.org/10.4314/bcse.v36i3.4
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ژورنال
عنوان ژورنال: Bulletin of The Chemical Society of Ethiopia
سال: 2022
ISSN: ['1011-3924', '1726-801X']
DOI: https://doi.org/10.4314/bcse.v36i3.4