Adsorption of reactive blue day 49 from aqueous solution on commercial activated carbon and polyaniline electrochemically deposited on carbon felt: Kinetic modeling and equilibrium isotherm analysis

International Journal of Electrochemical Science, Journal Year: 2024, Volume and Issue: 19(9), P. 100713 - 100713

Published: July 6, 2024

In this study, we investigated the effectiveness of commercially available activated carbon (CAC) and felt (PANI/CF) for removal reactive blue dye 49 (RB49) from an aqueous solution. We performed a parametric analytical adsorption research in order to achieve goal, looking at impact several important parameters like adsorbent mass, absorption duration, concentration ionic strength, pH RB49 The measurement results demonstrate that CAC dosage ranged 0.1 5 g. levels increased 17.73 % 97.62 PANI/CF assay 0.228 1.044 percentage delayed 90.78 99.97 %. It was found highest obtained < 7 both adsorbents. yield then stabilized equilibrium within 2 hours contact. kinetics were determined using pseudo-first-order, pseudo-second-order Elovich models. According experimental results, pseudo-first kinetic model proved be most suitable adsorbent, while three models perfectly adsorbent. (parameters) isotherms studied Langmuir, Freundlich Temkin data are more satisfactory better fitted Langmuir on second CF/PANI; show is agreement with isothermal study shown organic may successfully removed solutions as materials.

Language: Английский

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Insight into anti-corrosion behavior of Cladanthus mixtus (L.) flower extracts as a biodegradable inhibitor for carbon steel in acid medium: Experimental and theoretical studies

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 326, P. 129827 - 129827

Published: Aug. 6, 2024

Language: Английский

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Removal of Methyl Violet from Aqueous Solution by Adsorption onto Halloysite Nanoclay: Experiment and Theory

Toxics, Journal Year: 2022, Volume and Issue: 10(8), P. 445 - 445

Published: Aug. 3, 2022

Methyl Violet (MV) was removed from aqueous solutions by adsorption onto halloysite nanoclay (HNC) employing equilibrium, kinetics, thermodynamic data, molecular modellingR (MD), and Monte Carlo (MC) simulations. The chosen experimental variables were pH, temperature, starting MV concentration, contact time, adsorbent dosage. rate determined to increase with increasing initial dye temperature. Langmuir, Freundlich, Temkin, Dubinin–Radushkevich (D-R) isotherms utilized determine the capacity of HNC. Langmuir equation matched equilibrium data better than other models, whereas pseudo-second-order model described kinetic analyses revealed that process spontaneous, endothermic, physisorption-based. This study focused on two distinct mechanics-based theoretical approaches (MC MD). These techniques enabled a comprehension interaction between molecule surface. Theoretical results consistent findings. outcomes HNC is an excellent for industrial effluents.

Language: Английский

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Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta)

Molecules, Journal Year: 2022, Volume and Issue: 27(21), P. 7574 - 7574

Published: Nov. 4, 2022

The production and consumption of cassava (Manihot esculenta) occur in several places worldwide, producing large volumes waste, mostly the form bark. This study sought to bring a new purpose this biomass through activated carbon use as an adsorbent remove herbicide Diuron from water. It was observed that contains functional groups methyl, carbonyl, hydroxyl strongly amorphous structure. had surface area 613.7 m2 g−1, pore volume 0.337 cm3 diameter 1.18 nm. Freundlich model found best describe experimental data. increase temperature favored adsorption, reaching maximum capacity 222 mg g−1 at 328 K. thermodynamic parameters showed adsorption spontaneous, favorable, endothermic. enthalpy magnitude consistent with physical adsorption. Equilibrium attained within 120 min. linear driving force (LDF) provided strong statistical match kinetic curves. Diffusivity (Ds) coefficient (KLDF) both increased rise concentration. removed up 68% pollutants simulated effluent containing different herbicides. Activated zinc chloride (ZnCl2), produced leftover husks, shown be viable alternative for treatment effluents not only but also mixture other

Language: Английский

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Modeling of tenofovir disoproxil fumarate decontamination using sodium alginate-encapsulated activated carbon: Molecular dynamics, monte carlo and density functional theory

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2023, Volume and Issue: 663, P. 131057 - 131057

Published: Feb. 1, 2023

Language: Английский

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Development of a novel in-situ aluminum/carbon composite from olive mill wastewater for the selective adsorption and separation of malachite green and acid yellow 61

Bioresource Technology, Journal Year: 2023, Volume and Issue: 384, P. 129272 - 129272

Published: June 7, 2023

Language: Английский

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The efficiency of carbon modified by phosphoric acid (H3PO4) used in the removal of two antibiotics amoxicillin and metronidazole from polluted water: Experimental and theoretical investigation

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 391, P. 123237 - 123237

Published: Oct. 4, 2023

Language: Английский

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Optimization of the adsorption of lead (II) by hydroxyapatite using a factorial design: Density functional theory and molecular dynamics

Frontiers in Environmental Science, Journal Year: 2023, Volume and Issue: 11

Published: March 2, 2023

Hydroxyapatite (HAp) synthesized through a wet chemical procedure was used to adsorb lead (II) from an aqueous solution. HAp characterized using Fourier transform infrared, X-ray diffraction, Brunauer–Emmett–Teller analysis, and scanning electron microscopy. The removal of Pb +2 investigated the factorial design approach investigate efficiency different concentrations, adsorption contact time, mass. greatest (98.94%) obtained at starting concentration 50 mg/L, period 15 min, pH 8. At 323 K, isothermal adoption module fitted Langmuir isotherms with regression coefficient ( R 2 ) 0.96. thermodynamic calculations revealed that process exothermic, spontaneous, predominantly dominated by chemisorption. Furthermore, maximum capacity Q max equilibrium 90.18 mg/g, kinetics specified pseudo-second-order kinetic model. Density functional theory theoretical studies showed results experiment were correlated observation much higher negative E ads value for ion adsorbate molecules as they attached surface adsorbent.

Language: Английский

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Insights of the adsorption mechanism of Bemacid Red using coagulation-flocculation sludge: Optimisation using BBD-RSM and DFT calculations

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 409, P. 125540 - 125540

Published: July 14, 2024

Language: Английский

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Density functional theory and quantum mechanics studies of 2D carbon nanostructures (graphene and graphene oxide) for Lenalidomide anticancer drug delivery

Computational and Theoretical Chemistry, Journal Year: 2023, Volume and Issue: 1230, P. 114371 - 114371

Published: Oct. 14, 2023

Language: Английский

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