Improved removal of methyl orange dye by adsorption using modified clay: Combined experimental study using surface response methodology

Abbou, Brahim; Lebkiri, İmane; Ouaddari, Hanae; Amri, Abdelhay El; Achibat, Fatima Ezzahra; Kadiri, Lamya; Ouass, Abdelkarim; Lebkiri, Ahmed; Rifi, El Housseine

doi:10.1016/j.inoche.2023.111127

Cited by 26 publications

(7 citation statements)

References 82 publications

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“…In addition, as the amount of CTAB increases, the number of positive charges of La@D increases, which helps to adsorb more CR molecules. Further, CTAB altered the hydrophilicity of La@D and endowed it with alkyl chain functional groups, which enabled it to form hydrophobic interactions with aromatic and aliphatic π-functional groups in CR molecules, increasing more hydrophobic adsorption sites. , In addition, the formation of hydrogen bonds between the pollutant molecules and the adsorbent surface may also be a key factor in the enhancement of the adsorption performance . Therefore, the adsorption mechanism of modified materials on CR can be explained by electrostatic attraction and hydrophobic effect. , …”

Section: Resultsmentioning

confidence: 99%

Cetyltrimethylammonium Bromide-Modified Laponite@Diatomite Composites for Enhanced Adsorption Performance of Organic Pollutants

Dai,

Liu,

Yang

et al. 2024

Langmuir

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This work aims to enhance the adsorption performance of Laponite @diatomite for organic pollutants by modifying it with cetyltrimethylammonium bromide (CTAB). The microstructure and morphology of the CTAB-modified Laponite @ diatomite material were characterized using SEM, XRD, FTIR, BET, and TG. Furthermore, the influences of key parameters, containing pH, adsorbent dosage, reaction time, and reaction temperature, on the adsorption process were investigated. The kinetics, thermodynamics, and isotherm models of the adsorption process were analyzed. Finally, potential adsorption mechanisms were given based on the characterization. The research findings indicate that CTAB-La@D exhibits good adsorption performance toward Congo red (CR) over a broad pH range. The maximum adsorption capacity of CR was 451.1 mg/g under the optimum conditions (dosage = 10 mg, contact time = 240 min, initial CR concentration = 100 mg/L, temperature = 25 °C, and pH = 7). The adsorption process conformed to the pseudo-second-order kinetic model, and the adsorption isotherms indicated that the adsorption process of CR was more in line with the Langmuir model, and it was physical adsorption. Thermodynamic analysis illustrates that the adsorption process is exothermic and spontaneous. Additionally, the mechanisms of electrostatic adsorption and hydrophobic effect adsorption of CR were investigated through XPS and FTIR analysis. This work provides an effective pathway for designing high-performance adsorbents for the removal of organic dye, and the synthesized materials hold great capability for practical utilization in the treatment of wastewater.

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Section: Resultsmentioning

confidence: 99%

Cetyltrimethylammonium Bromide-Modified Laponite@Diatomite Composites for Enhanced Adsorption Performance of Organic Pollutants

Dai,

Liu,

Yang

et al. 2024

Langmuir

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“…The validated differential pulse voltammetry (DPV) methodology was utilized to determine the detection limit of methyl orange (MO) in deionized water, tap water, and spring water, and the findings were statistically compared to those obtained using a published spectroscopy technique [60]. As shown in Table 2, a statistical comparison of the results obtained using the recommended DPV strategy and those acquired using the reported spectroscopy method, using Student's ttest and variance ratio F-test, revealed no significant difference between the two techniques.…”

Section: Comparison To Reported Methodsmentioning

confidence: 99%

“…Mean a � S.D.98.6 � 1.34 98.54 � 1.46 98.1 � 1.9 98.4 � 1.36[60] The values in parenthesis are the corresponding theoretical values of t and F at P = 0.05.…”

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confidence: 99%

Bio‐based Nanomaterial in Carefully Designed Carbon Paste Electrode for the Detection of Methyl Orange

Romain Njimou,

Tamwa Sieugaing,

Péguy Nanseu‐Njiki

et al. 2024

Electroanalysis

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“…The data clearly demonstrate that there is a notable enhancement in the adsorption capability of the wastes as the starting concentration increases (C o ). The observed phenomenon can be attributed to the increase in the driving force at the solid-liquid interface caused by the rising concentration gradient, which facilitates mass transfer and increases the likelihood of collision between the waste surface and dye molecules, providing higher adsorption capacity [61][62][63].…”

Section: Effect Of Initial Dye Concentration and Isothermal Studymentioning

confidence: 99%

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

Filho,

Silva,

Silva

et al. 2023

Sustainability

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Perlite waste materials with different particle sizes were evaluated as potential candidates for removing the malachite green (MG) and Congo red (CR) dyes from contaminated water. Two types of waste, referred to as coarse (CP) and fine (FP), with particle sizes of 0.075 mm, 0.045 mm, and 0.037 mm, were used. The samples were characterized using X-ray diffraction, X-ray fluorescence, Fourier transform infrared spectroscopy, and N2 adsorption/desorption. The adsorption efficiency of MG and CR was investigated by varying the parameters of pH, contact time, and initial concentration. The reduction in particle size significantly influenced the removal of the CR dye, leading to an increase in the adsorption rate of 23.9% and 45.5% for CP and FP, respectively. Conversely, the adsorption of the MG dye on the residues was not affected by different particle sizes. CP and FP exhibited a removal rate exceeding 70% for both dyes. The adsorption of MG and CR on the wastes was well-described by the Sips isotherm model. The results of adsorption kinetics were best fit by the Elovich model. Perlite waste materials have demonstrated significant potential for the adsorptive remove of cationic and anionic dyes from aqueous solutions.

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Improved removal of methyl orange dye by adsorption using modified clay: Combined experimental study using surface response methodology

Cited by 26 publications

References 82 publications

Cetyltrimethylammonium Bromide-Modified Laponite@Diatomite Composites for Enhanced Adsorption Performance of Organic Pollutants

Cetyltrimethylammonium Bromide-Modified Laponite@Diatomite Composites for Enhanced Adsorption Performance of Organic Pollutants

Bio‐based Nanomaterial in Carefully Designed Carbon Paste Electrode for the Detection of Methyl Orange

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

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