Removal of Methylene Blue and Basic Yellow 28 Dyes from Aqueous Solutions Using Sulphonated Waste Poly Methyl Methacrylate

Dahdouh, Nadjib; Amokrane, Samira; Murillo, R.; Mekatel, Elhadj; Nibou, Djamel

doi:10.1007/s10924-019-01605-w

Cited by 22 publications

(17 citation statements)

References 53 publications

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“…Each adsorption experiment was performed in triplicate and the average value was reported. The removal percentage of dyes, at equilibrium, denoted as R (%), was determined by the Equation () [ 34 ] and adsorption capacity at any time ( t ) was calculated by Equation () [ 35 ] :

R (() %) goodbreak= \frac{C_{0} - C_{e}}{C_{0}} goodbreak\times 100

q_{t} ((), g^{- 1}) goodbreak= \frac{C_{0 -} C_{t}}{m} goodbreak\times normalV

where C 0 (mg L −1 ) is initial dye concentration, C t (mg L −1 ) is dye concentration at time t after adsorption, m (g) is the amount of adsorbent added, and V (L) is the volume of the dye solution.…”

Section: Methodsmentioning

confidence: 99%

“…[66] The effect of temperature on the adsorption capacity of the prepared materials was investigated at 295, 310, and 320 K, for 10 mg L À1 concentration of the dye solutions. The thermodynamic parameters of the process, enthalpy ΔH (kJ mol À1 ), entropy ΔS (kJ mol À1 K) and free Gibbs's enthalpy ΔG (kJ mol À1 ), were determined by plotting 1/T versus ln K d (Figure 9) and then calculated using the following equations [34] :…”

Section: Thermodynamic Studymentioning

confidence: 99%

“…Each adsorption experiment was performed in triplicate and the average value was reported. The removal percentage of dyes, at equilibrium, denoted as R (%), was determined by the Equation (3) [34] and adsorption capacity at any time (t) was calculated by Equation (4) [35] :…”

Section: Dye Removal Experiments and Analytical Proceduresmentioning

confidence: 99%

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Equilibrium, kinetic, and thermodynamic studies of new materials based on xanthan gum and cobalt ferrite for dye adsorption

Spiridon¹,

Apostol²,

Anghel³

et al. 2022

Applied Organom Chemis

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The present work is focused on developing new eco-friendly materials based on xanthan gum (XG) and cobalt ferrite (CF) nanoparticles with adsorptive properties. CF powder was prepared by the co-precipitation method. Esterification of XG was performed in order to improve its hydrophobic character, resulting in xanthan acrylate (XGAC). Thin films were prepared and characterized. The influence of pH and materials' composition on their water uptake capacity was investigated. Batch adsorption experiments were performed to evaluate the dye adsorption capacity of the materials. Materials comprising CF showed the highest values of dye removal percentage (up to 83%). The adsorption capacity of XGACCF for Methyl Blue (MB) was 65.56 mg g À1 , while the same material retained 63.35 mg g À1 of Basic Fuchsine (BF) dye solution. Equilibrium adsorption data were well fitted to two (Langmuir and Dubinin-Radushkevich) isotherm models. The adsorption kinetics were analyzed by the pseudo-first-order model, pseudo-second-order model, and Elovich model. A spontaneous endothermic physisorption process was recorded for MB adsorption, while BF retention was evaluated as an exothermic process.

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R (() %) goodbreak= \frac{C_{0} - C_{e}}{C_{0}} goodbreak\times 100

q_{t} ((), g^{- 1}) goodbreak= \frac{C_{0 -} C_{t}}{m} goodbreak\times normalV

Section: Methodsmentioning

confidence: 99%

Section: Thermodynamic Studymentioning

confidence: 99%

See 1 more Smart Citation

Equilibrium, kinetic, and thermodynamic studies of new materials based on xanthan gum and cobalt ferrite for dye adsorption

Spiridon¹,

Apostol²,

Anghel³

et al. 2022

Applied Organom Chemis

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“…Polymethyl The sulfonation of PMMA with concentrated sulfuric acid was carried out at different temperature, ratio of PMMA to sulfuric acid and durations (Table 1). The experimental parameters to synthesize the sulfonated PMMA (SPMMA) were of modification to the published procedure [7]. The SPMMA was produced under different experimental conditions to identify the optimum condition to produce the SPMMA.…”

Section: Sulfonation Of Pmmamentioning

confidence: 99%

Additively Manufactured Patient Specific Cranioplasty Implants with Antibacterial Properties

Nazeer

Choo

Wong

et al. 2022

J. Phys.: Conf. Ser.

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Cranioplasty is the surgical procedure to repair the bone defects in the cranium. Poly(methylmethacrylate) (PMMA) is the most common used biomaterial as it showed better long-term outcomes. Cranioplasty is usually performed through in-situ forming approach. However, the heat and shrinkage and the release of unreacted monomers represent the main drawbacks. Studies also shown a rate of graft infection higher than 10% in surgical PMMA cranioplasty. To overcome these, prefabricating the implants using additive manufacturing (AM) has been proposed. The AM implants could be tailored according to the defect and reduce surgical time, blood loss and the risk of infection. However, the insufficient disinfection of the AM implants may increase the risk of infection. Therefore, the implants can be loaded with antimicrobial agents prior to the cranioplasty. This study synthesised a chemically modified PMMA that can be loaded with antimicrobial agent for AM. The PMMA was sulfonated under different sulfonation temperature, duration, and ratio of PMMA to sulfuric acid. The ionic exchange capacity and degree of sulfonation of the sulfonated PMMA (SPMMA) was determined. In the future, SPMMA with the optimal IEC and DS will be loaded with antimicrobial agent and will be evaluated using the zone of inhibition assay.

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“…The value of ∆H° indicates that the biosorption of MB on Alfa biomass was controlled by the physiosorption process, it is estimated below 40 kJ/mol. The biosorption process becomes chemical when ∆H° values are comprised between 40 and 120 kJ/mol (30).…”

Section: Table 3 Kinetic Parameters For the Mb Biosorption By Stipa Tenacissima L (Alfa)mentioning

confidence: 99%

Removal of methylene blue by biosorption onto Stipa tenacissima L. (Alfa) plants: Kinetics, equilibrium and thermodynamic studies

et al. 2021

Self Cite

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This study examines the ability of Stipa tenacissima L. (Alfa) to biosorb the Methylene Blue dye. Biosorption tests were performed in aqueous solution based on certain essential parameters such as solution?s pH (2-12), solid/liquid ratio (1-6 g/L), initial dye concentration (25-125 mg/L) and contact time (0-300 min). The Langmuir, Freundlich, Temkin and Elovich models were applied. It was found that the equilibrium data could be fitted to the Langmuir isotherm for MB biosorption with a maximum capacity qmax 55, 95 mg/g. The kinetic study shows that the experimental data correspond to the pseudo-second order kinetic model. The negative Gibbs values free energy ?G? reveal the spontaneity of MB biosorption at the surface of Stipa tenacissima L. The positive value of ?H? reveals the endothermic nature of the process.

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Removal of Methylene Blue and Basic Yellow 28 Dyes from Aqueous Solutions Using Sulphonated Waste Poly Methyl Methacrylate

Cited by 22 publications

References 53 publications

Equilibrium, kinetic, and thermodynamic studies of new materials based on xanthan gum and cobalt ferrite for dye adsorption

Equilibrium, kinetic, and thermodynamic studies of new materials based on xanthan gum and cobalt ferrite for dye adsorption

Additively Manufactured Patient Specific Cranioplasty Implants with Antibacterial Properties

Removal of methylene blue by biosorption onto Stipa tenacissima L. (Alfa) plants: Kinetics, equilibrium and thermodynamic studies

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