Metal/metal oxide nanoparticles: A revolution in the biosynthesis and medical applications

Nano-Structures & Nano-Objects, Год журнала: 2023, Номер 37, С. 101071 - 101071

Опубликована: Ноя. 22, 2023

Язык: Английский

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Interfacial Adsorption Interactions of Dyes and Chitosan/Activated Carbon@Curcumin Derivatives in Single-Component and Binary Solutions

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

The remediation of wastewaters contaminated with dyes (discharged mainly from industry) is very important for preserving environmental quality and human health. In this study, a new composite chitosan (CS)-based adsorbent combined activated carbon (AC) curcumin (Cur) (abbreviated hereafter as CS/AC@Cur) in three different ratios (12.5%, 25%, 50%) was synthesized the removal anionic [reactive black 5 (RB5)] cationic [methylene blue (MB)] single-component or binary systems. materials were completely characterized through Fourier transform infrared spectroscopy, scanning electron microscopy, Brunauer-Emmett-Teller analysis, X-ray diffraction. Specifically, decrease surface area CS/AC@ observed addition curcumin, 163 to 18 m2/g, all CS/AC@Cur derivatives. terms adsorption results, optimal derivative both RB5 MB found be CS/AC@Cur50%, providing 93% at pH 2.0 ± 0.1 54% optimum 9.0 due electrostatic attractions. Elovich pseudo-second-order kinetic model, correlation coefficient R2 >0.98, better tailored indicating that controlled by chemisorption. addition, Sips (Langmuir-Freundlich) isotherm model fitted calculated capacities 338 307 mg/g MB, respectively. thermodynamic analysis showed spontaneous endothermic procedure, chemisorption main mechanism. Reuse experiments efficiency retained high levels, while stability studies revealed retains its structural integrity, even extreme values. Finally, mixed solution investigated, competitive effect between dyes.

Язык: Английский

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Cellulose-citric acid-chitosan@metal sulfide nanocomposites: Methyl orange dye removal and antibacterial activity

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 276, С. 133795 - 133795

Опубликована: Июль 10, 2024

Язык: Английский

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Insights into adsorption performance and mechanism of chitosan-bentonite biocomposites for removal of imazethapyr and imazamox

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 262, С. 129903 - 129903

Опубликована: Фев. 6, 2024

Язык: Английский

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Surface decorated graphene oxide with porphyrin: A Promising On-off sensor for Mn2+ ions detection in aqueous media

Journal of Molecular Structure, Год журнала: 2024, Номер 1315, С. 138897 - 138897

Опубликована: Июнь 6, 2024

Язык: Английский

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Enhanced adsorption of lead (II) ions onto cellulose nanoparticles/chitosan composite based on loofah sponge: kinetic and thermodynamic studies

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

Опубликована: Июнь 24, 2024

Abstract The purpose of this work is to study the efficiency lead ions removal via adsorption onto created solid nanomaterials. Three adsorbents were synthesized as cellulose nanoparticles (CN) extracted from plant loofah sponge using alkali treatment and acid hydrolysis techniques, chitosan beads (CZ), nanoparticles/chitosan composite (CZC). generated investigated TGA, N 2 adsorption/desorption, ATR-FTIR spectroscopy, SEM, TEM, XRD, pH PZC . Based on our findings, CZC had a 7.2, larger specific surface area (645.3 m /g), total pore volume (0.372 cm 3 /g). batch was well-fitted by pseudo-second order, Elovich, Langmuir, Temkin, Dubinin-Radushkevich all samples. Cellulose highest Langmuir capacity (221.104 mg/g) at 47°C, 120 min shaking time, g/L adsorbent dose, 6.5. Nitric desorption percentage (92%). thermodynamic investigation revealed that ion endothermic, favorable, spontaneous, physisorption. Our findings showed has high rapid kinetics, indicating its potential for employment in water treatment.

Язык: Английский

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Bacillus proteolyticus UPMC1508: A novel bacterial strain capable of biologically synthesize iron oxide nanoparticles

Biologia, Год журнала: 2025, Номер unknown

Опубликована: Фев. 11, 2025

Язык: Английский

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Novel Chitosan-Magnetite-Silica Ternary Capsules for Highly Efficient Sequestration of Reactive Dyes from aqueous media

Environmental Research, Год журнала: 2025, Номер unknown, С. 121359 - 121359

Опубликована: Март 1, 2025

Язык: Английский

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Nanobioinoculants and their applications in different sectors

Elsevier eBooks, Год журнала: 2025, Номер unknown, С. 3 - 20

Опубликована: Янв. 1, 2025

Язык: Английский

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Sustainable biocatalyst for textile dye effluent treatment using immobilized turnip peroxidase on polydopamine coated sawdust

Bioresource Technology Reports, Год журнала: 2025, Номер 30, С. 102118 - 102118

Опубликована: Апрель 15, 2025

Язык: Английский

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