Influence of extraction techniques on the adsorption capacity of methylene blue on sawdust: Optimization by full factorial design

Bouyahia, Chaimaa; Rahmani, Maryem; Bensemlali, Meryem; Hajjaji, Souad El; Slaoui, Miloudia; Bencheikh, Imane; Azoulay, Karima; Labjar, Najoua

doi:10.1016/j.mset.2022.12.004

Cited by 17 publications

(8 citation statements)

References 38 publications

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“…The reported adsorption capacity for the removal of methylene blue using the fabricated Fe 3 O 4 core-TiO 2 /mesoSiO 2 and Fe 3 O 4 core-mesoSiO 2 /TiO 2 double shell nanoparticles is compared with other studies from the literature [ 30 , 31 , 35 , 61 , 62 , 63 ] ( Table 5 ). The obtained adsorption capacity achieved in this work is higher than that reported by Zheng et al onto Fe 3 O 4 @ZIF-8 (20.2 mg.g −1 ) [ 30 ], Saini et al using Fe 3 O 4 @Ag/SiO 2 (128.5 mg/g) [ 31 ], Akbarbandari et al (66.51 and 71.43 mg.g −1 onto bi-metallic and tri-metallic metal–organic frameworks, respectively) [ 35 ], Bouyahia et al (7.84 mg.g −1 ) onto sawdust [ 61 ], Kazemi and Sobhani (54.05 mg.g −1 ) onto CuMn 2 O 4 /chitosan micro/nanocomposite [ 62 ] and Taweekarn et al (34.84 mg.g −1 ) onto Monolithic starch cryogel [ 63 ]. The obtained results in this work are lower than those reported by Zhan et al (higher than 400.00 mg.g −1 ) onto Fe 3 O 4 -derived organic/inorganic (S-Fe 3 O 4 and C-Fe 3 O 4 ) [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 Double Shell Nanoparticles for Methylene Blue Adsorption: Kinetic, Isotherms and Thermodynamic Characterization

El-Toni,

Habila,

Sheikh

et al. 2023

Nanomaterials

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Herein, Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 double shell nanoparticles were prepared by first (R1) and second (R2) routes and applied for the removal of methylene blue. The reported adsorption capacities for R1-0.2, R1-0.4 and R2 samples were 128, 118 and 133 mg.g−1, respectively, which were obtained after 80 min as equilibrium contact time, and pH of 6 using a methylene blue concentration of 200 ppm. The adsorption of methylene blue using the prepared Fe3O4 core-meso SiO2/TiO2 double shell was analyzed by kinetic and isotherms models. In addition, thermodynamic investigations were applied to assess the spontaneous nature of the process. The obtained results confirmed that the pseudo-second order model is well fitted with the adsorption data and the Freundlich-isotherm assumption suggested a multilayer adsorption mechanism. In addition, results of the thermodynamic investigation indicated that ΔG° was in the range of −2.3 to −6.8 kJ/mol for R1-0.2, −2.8 to −6.3 kJ/mol for R1-0.4 and −2.0 to −5.2 kJ/mol for R2. In addition, the ΔH° and ΔS° values were found in the range of 26.4 to 36.19 kJ.mol−1 and 94.9 to 126.3 Jmol−1 K−1, respectively. These results confirm that the surfaces of Fe3O4 core-mesoSiO2/TiO2 and Fe3O4 core-TiO2/mesoSiO2 double shell exhibit a spontaneous tendency to adsorb methylene blue from the aqueous solutions. The achieved performance of Fe3O4 core-meso SiO2/TiO2 and Fe3O4 core-TiO2/meso SiO2 double shell as adsorbent for methylene blue removal will encourage future research investigations on the removal of a broad range of contaminants from wastewater.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 Double Shell Nanoparticles for Methylene Blue Adsorption: Kinetic, Isotherms and Thermodynamic Characterization

El-Toni,

Habila,

Sheikh

et al. 2023

Nanomaterials

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“…The most practical way to minimize process costs, recover resources, and minimize the need for producing new adsorbent is to regenerate and reuse adsorbent [46][47][48][49][50][51] . The hydrogel regeneration process was run through four iterations at optimal process conditions (74.54 mg/L of initial concentration, 2.22 g/L of the dosage, and 80.36 min of contact time at 30 °C).…”

Section: Regeneration Of Corncob Cellulose-based Hydrogelmentioning

confidence: 99%

Expermental investigation on adsorption of methylene blue dye from waste water using corncob cellulose-based hydrogel

Majamo,

Amibo,

Mekonnen

2024

Sci Rep

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Hydrogel from corncob cellulose was synthesized in this investigation. The synthesized Hydrogel was characterized by SEM, XRD, and FTIR instruments. As the results indicate the synthesized hydrogel has required and important features, these suggest the suitability of hydrogel for the adsorption of methylene blue dye (MBD). Three important process variables (dosage, contact time, and initial concentration) with three levels were studied during the adsorption process at 30 °C and neutral pH. The efficiency of hydrogel for adsorption of MBD was determined in each experiment. The experimental results were statistically analyzed and interpreted. The maximum removal efficiency was achieved at 2.22 g/L of dosage, 80.36 min of contact time, and 74.54 mg/L of initial concentration. At this condition, 98.25% of MBD was achieved through experimental tests. Kinetics, isotherm, and thermodynamics studies were performed. Langmuir isotherm is more suitable to describe the adsorption process and the Pseudo second-order kinetic model fits this process. From the thermodynamics studies, all negative values of change in Gibbs free energy (ΔG°), and positive value of change in enthalpy (ΔH°), and change in entropy (ΔS°) indicate that the carried out experimental process is a spontaneous and endothermic. Moreover, the regeneration experiment for adsorbent was performed. The treatment of real textile industry waste water was conducted and the removal efficiency of hydrogel was 64.76%. This removal percentage reduction from sythetic aqueous solution is due to involvement of other pollutants in the real waste water. The synthesized hydrogel adsorbent is suitable up to the third cycle without significant loss in removal efficiency.

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“…The primary advantage of this approach over other statistical experimental design methods is the decreased number of experiment trials required to assess multiple parameters and their interactions [17]. Full factorial designs are systematic and uncomplicated designs that allow for the evaluation of the primary effects and interactions [18]. When dealing with a large number of variables or many levels of a factor, the required number of test points in the full factorial design grows exponentially.…”

Section: Introductionmentioning

confidence: 99%

Designing an Efficient Surfactant–Polymer–Oil–Electrolyte System: A Multi-Objective Optimization Study

et al. 2023

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This research aimed to study the effects of individual components on the physicochemical properties of systems composed of surfactants, polymers, oils, and electrolytes in order to maximize the recovery efficiency of kerosene while minimizing the impact on the environment and human health. Four independent factors, namely anionic surfactant sodium dodecylbenzene sulfonate (X1) (SDBS), oil (X2) (kerosene), water-soluble polymer poly(ethylene glycol) (X3) (PEG), and sodium chloride (X4) (NaCl), were studied using the full factorial design (FFD) model. Four output variables, namely conductivity (Y1), turbidity (Y2), viscosity (Y3), and interfacial tension (IFT) (Y4), were taken as the response variables. All four FFD models have high coefficients of determination and low errors. The developed models were used in a multi-objective optimization (MOO) framework to determine the optimal conditions. The obtained optimal conditions are X1 = 0.01, X2 = 50, X3 = 5, and X4 = 0.1, with an error of 0.9414 between the predicted and experimental objective function values. This result shows the efficiency of the model developed and the system used for the recovery of kerosene, while also having a positive effect on the protection of the environment.

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Influence of extraction techniques on the adsorption capacity of methylene blue on sawdust: Optimization by full factorial design

Cited by 17 publications

References 38 publications

Fabrication of Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 Double Shell Nanoparticles for Methylene Blue Adsorption: Kinetic, Isotherms and Thermodynamic Characterization

Fabrication of Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 Double Shell Nanoparticles for Methylene Blue Adsorption: Kinetic, Isotherms and Thermodynamic Characterization

Expermental investigation on adsorption of methylene blue dye from waste water using corncob cellulose-based hydrogel

Designing an Efficient Surfactant–Polymer–Oil–Electrolyte System: A Multi-Objective Optimization Study

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