Simultaneous degradation of methyl orange and indigo carmine dyes from an aqueous solution using nanostructured WO3 and CuO supported on Zeolite 4A

Separation and Purification Technology, Год журнала: 2024, Номер 344, С. 127265 - 127265

Опубликована: Март 30, 2024

Язык: Английский

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Amendment of Sargassum oligocystum bio-char with MnFe2O4 and lanthanum MOF obtained from PET waste for fluoride removal: A comparative study

Environmental Research, Год журнала: 2024, Номер 251, С. 118641 - 118641

Опубликована: Март 6, 2024

Язык: Английский

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Decontamination of tetracycline from aqueous solution using activated carbon/Fe3O4/ZIF-8 nanocomposite adsorbent

Separation and Purification Technology, Год журнала: 2024, Номер 343, С. 127188 - 127188

Опубликована: Март 20, 2024

Язык: Английский

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Remediation of malachite-green dye from textile wastewater using biosorbent almond shell-based cellulose

Journal of Molecular Liquids, Год журнала: 2024, Номер 399, С. 124435 - 124435

Опубликована: Март 12, 2024

The presence of malachite green (MG) in surface waters represents a major health hazard for aquatic organisms and communities living near contaminated water sources. In this study, almond shell adsorbents prepared from the four types Marcona (M), Fournat de Brézenaud (FZ), Ferraduel (FD) Ferriages (FG), used to clean wastewater textile industry that had been with color MG. Optimal adsorption parameters were determined through batch experiments using standard dye solution. Further, SEM, XRD, BET, FTIR employed characterizing biosorbents. examination experimental data isotherms kinetic models revealed MG occurs monolayer, chemical as rate-controlling step. maximum capacities, under pH around 7 temperature 35 °C 40.82, 60.98, 48.08, 117.65 mg/g M, FD, FG, FZ, respectively. addition, MC simulation models, DFT, calculations performed provide more detailed understanding mechanism. Topological studies such NCI, RDG, LOL, ELF conducted discussed Multiwave function (Multiwfn) VMD programs liquid phase. conclusion, chemisorption limits rate process, cation is susceptible nucleophilic than electrophilic attacking. Based on these theoretical results, it possible consider materials an inexpensive viable solution eliminate wastewater. Adsorption cellulose can be considered feasible strategy treatment, optimized use real samples at even lower concentrations. This approach offers effective technological alternative conventional methods retention

Язык: Английский

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Efficient removal of toxic dyes malachite green and fuchsin acid from aqueous solutions using Pullulan/CMC hydrogel

Polymer, Год журнала: 2024, Номер 307, С. 127203 - 127203

Опубликована: Май 27, 2024

Язык: Английский

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Enhanced removal of methylene blue and procion deep red H-EXL dyes from aqueous environments by modified-bentonite: Isotherm, kinetic, and thermodynamic

Desalination and Water Treatment, Год журнала: 2024, Номер 320, С. 100607 - 100607

Опубликована: Июль 15, 2024

This study aims to enhance local bentonite's effectiveness in removing methylene blue and procion deep red dyes from aqueous media through organic modification with cetyltrimethylammonium bromide surfactant. Raw modified bentonites were analyzed using XRF, XRD, FTIR, BET/BJH, DSC techniques. The bentonite showed a crystalline structure mesoporous morphology heterogeneous surface. Optimal adsorption conditions for MB dye 0.2 g adsorbent dose, 60 min contact time, mg/L initial concentration, pH 8, achieving maximum sorption capacity of 6.418 mg/g. For PDR dye, optimal 0.125 40 30 acidic pH, 8.503 Isotherm analysis indicated the Langmuir model best fits data, suggesting mono-layer process. Kinetic investigations revealed that follows pseudo-second-order model, indicating chemisorption mechanism. Thermodynamic results exothermic endothermic PDR. work highlights potential surfactant-modified as cost-effective sorbent treating polluted systems, effectively both cationic anionic dyes.

Язык: Английский

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Evaluation of neem gum-poly(acrylic acid) based adsorbent for cationic dye removal using adsorption isotherm, kinetics and thermodynamics: Linear regression models

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 142059 - 142059

Опубликована: Март 1, 2025

Язык: Английский

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Enhanced methylene blue degaradation and miniralization through activated persulfate coupled with magnetic field

Cleaner Engineering and Technology, Год журнала: 2024, Номер unknown, С. 100822 - 100822

Опубликована: Окт. 1, 2024

Язык: Английский

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Effective removal of hazardous cationic dye from polluted water using sulfonated copolymer hydrogel: Synthesis, nonlinear isotherm, and kinetics investigation

Journal of Saudi Chemical Society, Год журнала: 2024, Номер 28(3), С. 101852 - 101852

Опубликована: Апрель 5, 2024

In this study, a novel copolymer hydrogel according to poly (acrylonitrile-co-sodium styrene sulfonate) (ASD) as an effective adsorbent was prepared via free radical polymerization of the solution at ratio 1:1 remove cationic crystal violet dye (CV) from wastewater. The thoroughly characterized using FTIR, TGA, SEM and EDX analysis. that produced has notable capacity for adsorbing uptake over wide pH range well easily separated without need filtration centrifugation. Under optimal conditions 1 g/L hydrogel, 400 mg/L concentration contact time 5 h, showed high removal efficiency approaching 100 %. sulfonated maximum adsorption 518.49 mg/g, which is six times larger than pristine PAN. Langmuir model properly represented isotherm data, however kinetics data better described by pseudo-second-order model. Based on calculated thermodynamic characteristics, process CV surface spontaneous exothermic.

Язык: Английский

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Lead and cadmium decontamination from water media by CNT/Starch/Fe3O4, as reclaimable magnetic nanocomposite

Biomass Conversion and Biorefinery, Год журнала: 2024, Номер unknown

Опубликована: Апрель 13, 2024

Язык: Английский

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