Hybrid multifunctional biocomposite of chitosan grafted benzaldehyde/montmorillonite/algae for effective removal of brilliant green and reactive blue 19 dyes: Optimization and adsorption mechanism

Journal of Cleaner Production, Год журнала: 2023, Номер 393, С. 136334 - 136334

Опубликована: Фев. 4, 2023

Язык: Английский

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Sustainable sewage sludge biosorbent activated carbon for remediation of heavy metals: Optimization by response surface methodology

Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 8, С. 100437 - 100437

Опубликована: Июль 28, 2023

This study investigated the potential use of sewage sludge-based activated carbon in removal copper (Cu) and cadmium (Cd) ions from aqueous solutions. The (AC) was prepared by chemical activation using potassium hydroxide KOH heating a tube furnace at 600 °C for 2 h. produced further subject to sulfurization process enhance its efficiency. used Box-Behnken Design (BBD) response surface methodology (RSM) optimize several parameters, including initial metal concentration, dose, pH, contact time. Results showed that introduced sulfur functional groups (SO) decreased specific area 190 173 m2/g. quadratic model suggested as best describe effect adsorption parameters on percentage with high R2 values (≥0.9) p-value less than 0.05. Second-order polynomial equations, analysis variance (ANOVA), three-dimensional plots were developed assess interaction between optimal conditions remove ions. optimum 300 min, 100 ppm 20 g/L pH 6, efficiency 83.9%. Cadmium 87.5% achieved 11 ppm, minutes time, 2.5 adsorbent dose. capacity removing 16 mg/g 17.6 respectively. increased 14.5 18.7% Advanced analytical techniques such FITR, SEM-EDX, BET area, elemental characterize materials.

Язык: Английский

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Valorization of Parthenium hysterophorus weed into biochar for adsorptive removal of industrial dyes from multi-pollutant aqueous systems

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

Опубликована: Апрель 2, 2024

Язык: Английский

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Olive mill wastewater from a liquid biological waste to a carbon/oxocalcium composite for selective and efficient removal of methylene blue and paracetamol from aqueous solution

Bioresource Technology, Год журнала: 2022, Номер 365, С. 128162 - 128162

Опубликована: Окт. 22, 2022

Язык: Английский

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Carbon nanotubes for dye removal: A comprehensive study of batch and fixed-bed adsorption, toxicity, and functionalization approaches

Journal of Water Process Engineering, Год журнала: 2024, Номер 67, С. 106193 - 106193

Опубликована: Сен. 27, 2024

Язык: Английский

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

Langmuir, Год журнала: 2024, Номер 40(16), С. 8427 - 8439

Опубликована: Апрель 12, 2024

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

Язык: Английский

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Efficient CO2 capture using a novel Zn-doped activated carbon developed from agricultural liquid biomass: Adsorption study, mechanism and transition state

Surfaces and Interfaces, Год журнала: 2024, Номер 52, С. 104846 - 104846

Опубликована: Июль 24, 2024

Язык: Английский

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Hydrothermal carbonization of muskmelon exocarp for enhanced dye removal from an aqueous solution: A sustainable approach

Desalination and Water Treatment, Год журнала: 2024, Номер 317, С. 100259 - 100259

Опубликована: Янв. 1, 2024

In a vibrant world of industrial growth, the realm color and creativity has flourished. The volume wastewater contaminated with dyes increased significantly alarmingly as result rise in operations. This research paper introduces an innovative, eco-friendly method for effectively eliminating Coomassie Brilliant Blue R-250 (CBB) dye from waste-based solutions. explores utilization hydrothermal carbonization (HTC) to convert muskmelon exocarp into hydrochar, highly effective green adsorbent material. properties adsorption material were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive (EDS), BET isotherm analysis. efficiency peel hydrochar (MMPH) was evaluated using series batch study tests. Under ideal conditions 1 g/L dose, pH 7, 30 minutes contact time, 303 K temperature, remarkable maximum capacity 422.9 mg/g achieved. Equilibrium reached minutes, allowing thorough examination Isothermal, Kinetic, Thermodynamic processes. thermodynamic analysis demonstrated successful spontaneous process negative ∆Go ∆Ho values, indicating exothermic release, ∆So reflecting reduced unpredictability during adsorption. results highlighted superiority Freundlich pseudo-first-order kinetics accurately describing data. Current investigations have revealed that produced exhibits outstanding efficacy adsorptive MMPH removal CBB dye.

Язык: Английский

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Spectroscopically study of competitive adsorption of planer and non-planer reactive dyes over magnesium oxide nanoparticles sustainably fabricated through autoignition

Applied Materials Today, Год журнала: 2025, Номер 44, С. 102689 - 102689

Опубликована: Март 27, 2025

Язык: Английский

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Statistical Optimization and Evaluation of the Adsorptive Efficiency of Base Modified Saccharum munja Biomass for Safranine O and Crystal Violet Dyes in Single and Binary Systems

Colloid Journal, Год журнала: 2025, Номер unknown

Опубликована: Апрель 9, 2025

Язык: Английский

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