Yeast-Based Magnetic Biocomposite for Efficient Sorption of Organic Pollutants

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(2), P. 655 - 655

Published: Jan. 12, 2024

The study aimed to prepare a biocomposite containing Yarrowia lipolytica yeast cells with magnetic properties. work proposes the use of this as sorbent for removal organic pollutants like methylene blue from liquids. sorption process was conducted in periodic through which different parameters were analyzed such initial concentration (50–250 mg/dm3), time (0.167–24 h), and temperature (25–40 °C). To fit experimental data theoretical models, Langmuir, Freundlich, Temkin, Dubinin–Radushkevich models used. In addition, pseudo-first-rate, pseudo-second-rate order, Weber–Morris Elovich kinetic evaluated. highest Freundlich isotherm model (R2 = 0.9959 ARE 3.41%) order 0.9989 1.14%). It has been shown that removing using is exothermic its usefulness decreases an increase (from 32.10 mg/g 23.64 mg/g). acquire information about material characteristics, instrumental methods applied: FTIR, SEM-EDX, TGA, VSM. This provides new on possibility composites made biochar, yeast, particles dyes aqueous environment. obtained effective contaminants easily separated after performed process.

Language: Английский

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Modifying Superparamagnetic Iron Oxide Nanoparticles as Methylene Blue Adsorbents: A Review

ChemEngineering, Journal Year: 2023, Volume and Issue: 7(5), P. 77 - 77

Published: Aug. 28, 2023

Methylene blue (MB) is a hazardous chemical that widely found in wastewater, and its removal critical. One of the most common methods to remove MB adsorption. To enhance adsorption process, magnetic adsorbents, particularly those based on superparamagnetic iron oxide nanoparticles (SPION), play vital role. This study focuses comparing recent novel SPION-based adsorbents how acquire critical parameters needed evaluate desorption mechanisms, including isotherms, kinetics, thermodynamic properties. Moreover, review article also discusses future aspects these adsorbents.

Language: Английский

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Green synthesis of magnetic azo-linked porous organic polymers with recyclable properties for enhanced Bisphenol-A adsorption from aqueous solutions

Environmental Research, Journal Year: 2024, Volume and Issue: 249, P. 118427 - 118427

Published: Feb. 5, 2024

Language: Английский

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Fabrication of Core-Shell Hydrogel Bead Based on Sodium Alginate and Chitosan for Methylene Blue Adsorption

JOURNAL OF RENEWABLE MATERIALS, Journal Year: 2024, Volume and Issue: 12(4), P. 815 - 826

Published: Jan. 1, 2024

A novel core-shell hydrogel bead was fabricated for effective removal of methylene blue dye from aqueous solutions.The core, made sodium alginate-g-polyacrylamide and attapulgite nanofibers, cross-linked by Calcium ions (Ca 2+ ).The shell, composed a chitosan/activated carbon mixture, then coated onto the core.Fourier transform infrared spectroscopy confirmed grafting polymerization acrylamide alginate.Scanning electron microscopy images showed structure.The core exhibited high water uptake ratio, facilitating diffusion into core.During process, first adsorbed shell further core.Adsorption tests that coreshell structure had larger adsorption capacity than alone.The effectively enhanced to compared single core.Methylene activated chitosan in residual diffused adsorbed.

Language: Английский

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Fabrication of a Fe3O4/CS/AgNPs Composite from Indigenous Iron Sand for Enhanced Methylene Blue Adsorption

Journal of Cluster Science, Journal Year: 2024, Volume and Issue: 35(5), P. 1463 - 1480

Published: April 5, 2024

Language: Английский

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Removal of methylene blue dye from aqueous solutions by adsorption technique using sodium alginate hybrid composites filled with SnS ₂

Journal of Dispersion Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 18

Published: Jan. 6, 2025

Tin disulfide has been the focus of several investigations on its applicability in various fields due to exceptional qualities. Furthermore, while there are studies adsorption properties, is a research gap effects incorporation into biopolymer matrix characteristics. In this study, experimental removal methylene blue (MB) dye from wastewaters by eco-friendly, low-cost and method using SA/SnS2 composite adsorbents filled with SnS2 were carried out performances evaluated. The characterized FTIR-ATR, SEM-EDX, XRD. It was observed that capacity increased 219.17 ± 5.36 mg/g 399.65 5.89 increasing mass percentage composition best adsorbent SA/SnS2/30. From isotherm models, Langmuir Temkin models found be most compatible for 𝑞𝑚 value SA/SnS2/30 determined as 532.52 6.67 at 318 K model. also about two times higher than adsorbent. process follow an Elovich quasi-second-order kinetic models. Thermodynamic parameters showed MB endothermic (Δ⁢𝐻𝑜=11.37±0.09 kJ/mol) spontaneous (Δ⁢𝐺𝑜=−25.24±0.28kJ/mol 298 K) Considering all results, can used environmentally friendly, biodegradable, sustainable, effective, reusable aqueous solutions.

Language: Английский

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Preparation of a New Hybrid MgAlLDH@Magnetite Activated Charcoal by Hydrothermal Method for Stability and Adsorption Mechanism of Congo Red

Results in Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 100440 - 100440

Published: Jan. 1, 2025

Language: Английский

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A comprehensive review on impregnated magnetic nanoparticle in advanced wastewater treatment: An in-depth technical review and future directions

Sustainable Chemistry for the Environment, Journal Year: 2025, Volume and Issue: unknown, P. 100220 - 100220

Published: Feb. 1, 2025

Language: Английский

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Mild sulfonation process of food grade algae for removal of methyl violet and methylene blue toxic dyes: Statistical modelling and desirability function optimization

Algal Research, Journal Year: 2025, Volume and Issue: unknown, P. 104040 - 104040

Published: April 1, 2025

Language: Английский

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Fast Kinetic Response and Efficient Removal of Methyl Blue and Methyl Green Dyes by Functionalized Multiwall Carbon Nanotubes Powered with Iron Oxide Nanoparticles and Citrus reticulata Peel Extract

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(8), P. 603 - 603

Published: April 14, 2025

Maghemite nanoparticles (NPs) were successfully developed using phenolic-rich extracts (cyanidin) from Citrus reticulata peel residues. The 11 nm maghemite NPs, obtained at 3% w/v and 353 K, presented the optimal synthesis conditions. To improve dye adsorption performance, synergetic behavior between these NPs multiwall carbon nanotubes was demonstrated. Prior to tests, aging effect on carefully assessed various analytical techniques, which clearly showed magnetite–maghemite phase transition. However, this had no impact cyanidin coating or properties. A remarkable percentage removal of (93 ± 3)% for methylene blue (84 green achieved in short equilibrium times 10 25 min, respectively, with an optimum pH value 5.5. Reuse experiments revealed that 90% both dyes second seventh regeneration cycles. Organic loading during cycles effectively confirmed by X-ray photoelectron spectroscopy magnetic measurements. Dye involves a two-step mechanism: (i) electrostatic negative surface groups adsorbent (isoelectric point 5.2) cationic (ii) π–π stacking interactions aromatic benzene rings dyes, hexagonal skeleton nanotubes, phenolic ring biosynthesized sample. These results suggest low-cost modified can be applied water promising recycling

Language: Английский

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