Numerical desirability function for adsorption of methylene blue dye by sulfonated pomegranate peel biochar: Modeling, kinetic, isotherm, thermodynamic, and mechanism study

Sulfonated pomegranate ( Punica granatum ) peel biochar (SPPBC) was developed via thermal activation with sulfuric acid (H 2 SO 4 ) to act as a promising biochar material for the adsorptive removal of toxic cationic dye namely methylene blue (MB) dye from contaminated water. A Box-Behnken design (BB...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2021, 38(7), 256, pp.1499-1509
Main Authors: Jawad, Ali H., Abdulhameed, Ahmed Saud, Hanafiah, M. A. K. M., ALOthman, Zeid A., Khan, Mohammad Rizwan, Surip, S. N.
Format: Article
Language:English
Subjects:
Adsorption
Adsorptivity
Biotechnology
Catalysis
Cationic dyes
Chemistry
Chemistry and Materials Science
Dosage
Dyes
Industrial Chemistry/Chemical Engineering
Isotherms
Lignocellulose
Materials Science
Mathematical models
Methylene blue
Optimization
Separation Technology
Sulfuric acid
Thermodynamics
화학공학
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Summary:Sulfonated pomegranate ( Punica granatum ) peel biochar (SPPBC) was developed via thermal activation with sulfuric acid (H 2 SO 4 ) to act as a promising biochar material for the adsorptive removal of toxic cationic dye namely methylene blue (MB) dye from contaminated water. A Box-Behnken design (BBD) and numerical desirability function were adopted to optimize the input adsorption variables (SPPBC dosage, temperature, pH, and contact time). The maximum removal of the MB dye can be accomplished by simultaneous significant interaction between SPPBC dosage with solution pH, SPPBC dosage with time, SPPBC dosage with temperature, solution pH with time, and time with temperature. The numerical desirability function identified the highest MB dye removal (93.9%) can be achieved at the following optimum numerical adsorption conditions: SPPBC dosage 0.18 g, temperature 49 °C, pH 9.7, and time 4.3 h. Equilibrium data were well fitted to the Temkin and Langmuir isotherm models. The maximum recorded adsorption capacity of SPPBC for MB dye adsorption by using Langmuir isotherm model was 161.9mg/g. This research work reveals the possibility of converting lignocellulose pomegranate peel into a renewable and environment-friendly biochar via a relatively fast acid-activation process with the great potential to be promising adsorbent for removal of MB dye.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-021-0801-9