Selective adsorption of cationic dye by κ-carrageenan-potato starch bio-hydrogel: Kinetics, isotherm, and thermodynamic studies

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 281, С. 136377 - 136377

Опубликована: Окт. 9, 2024

Язык: Английский

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A water stable Cu-MOF/GO composite as a persulfate activator for efficient degradation of dye wastewater

Journal of Saudi Chemical Society, Год журнала: 2024, Номер 28(3), С. 101856 - 101856

Опубликована: Апрель 9, 2024

Water pollution caused by textile dyes is considered a major and growing issue. To address this challenge, in research, water-stable Cu-MOFs/GO composite catalysts were produced using the hydrothermal synthesis method as an efficient persulfate (PDS) activator for methyl orange (MO) degradation. We also explored changes surface morphology, crystal structure, functional groups, valence states of materials before after introduction GO Cu-MOFs. It was shown that demonstrates more stable unique folded structure provides better hydrophobic environment Cu metal cluster hence making MOF easier to grow. The Cu-MOFs/GO-PDS system showed high activation performance on wide pH range (3–11), meanwhile, less affected presence natural anions inhibited organic matter citric acid. Furthermore, had excellent stability, reusability structural integrity, removal rate MO maintained five cycles. In terms oxidation mechanism, addition generation ·SO4− OH· radicals, there singlet oxygen 1O2 active Cu(III) system, all these substances contributed pollutant MO.

Язык: Английский

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Feasibility evaluation of near dissolved organic matter microfiltration (NDOM MF) for the efficient removal of microplastics in the water treatment process

Chemosphere, Год журнала: 2024, Номер 356, С. 141882 - 141882

Опубликована: Апрель 4, 2024

Язык: Английский

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Engineering efficient carrageenan materials for simultaneously removing herbicide, eight anionic/cationic dyes and metal ion contaminants and adsorption mechanism

International Journal of Biological Macromolecules, Год журнала: 2025, Номер 302, С. 140551 - 140551

Опубликована: Фев. 3, 2025

Язык: Английский

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Functionalized nanocomposite biopolymer-based environmental-friendly adsorbents: Design, adsorption mechanism, regeneration, and degradation

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 132034 - 132034

Опубликована: Фев. 1, 2025

Язык: Английский

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Simultaneous Removal of Heavy Metals and Dyes on Sodium Alginate/Polyvinyl Alcohol/κ-Carrageenan Aerogel Beads

Gels, Год журнала: 2025, Номер 11(3), С. 211 - 211

Опубликована: Март 16, 2025

Industrial textile wastewater containing both heavy metals and dyes has been massively produced. In this study, semi-interpenetrating polymer network structures of sodium alginate (SA)/polyvinyl alcohol (PVA)/κ-carrageenan (CG) aerogel beads were synthesized for their simultaneous reduction. The SA/PVA/CG through a cost-effective environmentally friendly method using naturally abundant biopolymers without toxic cross-linkers. spheres with size 3.8 ± 0.1 mm, exhibiting total pore areas 15.2 m2/g porous (pore distribution: 0.04–242.7 μm; porosity: 93.97%) hydrogen bonding, high water absorption capacity, chemical resistance. adsorption capacity mechanisms the investigated kinetic isotherm experiments (Cu(II), Pb(II)), cationic dye (methylene blue, MB), anionic (acid blue 25, AB)) in single binary systems. maximum capacities based on Langmuir model Cu(II), Pb(II), MB 85.17, 265.98, 1324.30 mg/g, respectively. Pb(II) showed higher affinity than Cu(II) ionic properties, such as electronegativity hydration radius. was spontaneous, endothermic exothermic natures,

Язык: Английский

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From preparation to application: Functional carrageenan-based hydrogels for biomedical and sensing uses

Materials Today Chemistry, Год журнала: 2025, Номер 45, С. 102668 - 102668

Опубликована: Апрель 1, 2025

Язык: Английский

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Removal of tetramethylammonium hydroxide (TMAH) by cold plasma treatment combined with periodate oxidation: Degradation, kinetics, and toxicity study

Chemosphere, Год журнала: 2024, Номер 362, С. 142704 - 142704

Опубликована: Июнь 25, 2024

Язык: Английский

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Superior adsorptive uptake of methylene blue pollutant by nanobiochar- impregnated-layered double hydroxides

Inorganic Chemistry Communications, Год журнала: 2024, Номер 168, С. 112913 - 112913

Опубликована: Июль 28, 2024

Язык: Английский

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Sulphonated Poly (Glycidyl Methacrylate-co-Styrene)-based Adsorbents for the Removal of Methylene Blue (MB) Dye from Aqueous Solutions

Desalination and Water Treatment, Год журнала: 2024, Номер 320, С. 100759 - 100759

Опубликована: Сен. 7, 2024

Язык: Английский

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