Innovative cross-linked electrospun PVA/MOF nanocomposites for removal of cefixime antibiotic

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 2, 2025

In this study, we synthesized two nanocomposites, cross-linked PVA/HKUST and PVA/ZIF-67, by integrating metal–organic frameworks (MOFs) into electrospun polyvinyl alcohol (PVA). Several characterization techniques including FTIR, XRD, ICP, SEM, TGA, UV–Vis, zeta potential, N2 adsorption–desorption were employed. The adsorption performance of the composites for cefixime (CFX) removal was assessed under varying conditions such as MOF content, contact time, pH, initial CFX concentration, temperature. ZIF-67 HKUST contribute to high efficiency providing a porous structure with surface area, facilitating interactions molecules, enhancing overall stability composite material in process. Langmuir isotherm model revealed maximum capacity 282.5 mg/g 211.4 PVA/ZIF-67. Notably, rapidly removed within 50 min, demonstrating potential these nanofibers wastewater treatment. However, after six cycles, efficiencies declined from 88 74% 85 59%

Language: Английский

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Efficient removal of Sunset yellow food dye from aqueous environment using bimetal-organic frameworks encapsulated with chitosan: Synthesis, characterization, adsorption analysis, and optimization

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 407, P. 125208 - 125208

Published: June 6, 2024

Language: Английский

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Effective Co2+ removal from aqueous solution and industrial wastewater using ZIF-7 and MnFe2O4-modified walnut shell biochar composite

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 353, P. 128574 - 128574

Published: June 25, 2024

Language: Английский

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Sustainable synthesis and environmental application of chitosan-Ocimum basilicum leaves-ZnO composite membrane for permanganate ion removal in wastewater treatment

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 2, 2024

Language: Английский

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Cobalt adsorption by Ca(OH)2 Modified quartz rock particles adsorbent: Equilibrium isotherm, kinetics, and thermodynamic studies

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 319, P. 100477 - 100477

Published: June 7, 2024

The presence of cobalt ions Co(II) in wastewater poses major threats to both humans and the environment. effectiveness adsorption modified quartz rock particles (MQRP) adsorbent with calcium hydroxide solution Ca(OH)2 for eliminating from a water was examined. MQRP had maximum ability adsorb 47.112 mg g−1 at pH 6.0 contact time 2 h. HCl stripping agent offered highest desorption efficiency regenerate use again new cycle adsorption. equilibrium isotherms characteristics were experimentally identified, results aligned principles Langmuir model. Under examined temperature conditions, thermodynamic evaluation proved that on vacancies spontaneous exothermic. outcomes kinetic process demonstrated closely conformed pseudo-second-order pattern. Therefore, high silica content makes it an important adsorbent, could be applied as cost-effective efficient control release industrial wastewater.

Language: Английский

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Recent advances on 2D Metal Organic Framework (MOF) membrane for waste water treatment and desalination

Desalination, Journal Year: 2024, Volume and Issue: 592, P. 118183 - 118183

Published: Oct. 11, 2024

Language: Английский

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NH2-UiO-66 (Zr) modified waste wool fibers for efficient adsorption of dye from water

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 318, P. 100305 - 100305

Published: April 1, 2024

Language: Английский

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Enhanced adsorption and removal of Cd(II) from aqueous solution by amino-functionalized ZIF-8

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: May 10, 2024

Abstract Zeolite imidazolate framework-8 (ZIF-8), which is a special subgroup of metal–organic frameworks (MOFs), was synthesized and modified by ethylenediamine (ZIF-8-EDA) to prepare an efficient adsorbent for the high sorption Cd 2+ ions from solution. The ZIF-8 were characterized X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy, Brunauer–Emmett–Teller (BET), field emission scanning electron microscopy (FE-SEM) with energy dispersive spectroscopy (EDS), transmission (TEM) analysis. optimum conditions dosage adsorbent, initial ion concentration, pH, contact time 0.05 g/l, 50 mg/l, 6, 60 min, respectively, cadmium aqueous solutions removal efficiency 89.7% 93.5% ZIF-8-EDA. Adsorption kinetics equilibrium data analyzed using Langmuir Freundlich equations. model fitted better than model. According equation, maximum uptake 294.11(mg/g). calculated thermodynamic parameters (ΔG°, ΔH°, ΔS°) indicated that adsorption process feasible, spontaneous, endothermic at 20–50 °C. Based on results, amino functionalized had improved performance due replacing starting linker organic ligands effective functional groups, leading chemical coordination interaction metal non-bonding pair electrons N atoms group. selectivity toward ZIF-8-EDA > Pb Ni ‏.

Language: Английский

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Highly stable mesoporous Co/Ni mixed metal-organic framework [Co/Ni(μ3-tp)2(μ2-pyz)2] for Co (II) heavy metal ions (HMIs) remediation

Heliyon, Journal Year: 2024, Volume and Issue: 10(15), P. e35044 - e35044

Published: July 24, 2024

Language: Английский

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Phosphate-modified hydrothermal biochar: Green and efficient uranium adsorption

Materials Letters, Journal Year: 2024, Volume and Issue: 377, P. 137363 - 137363

Published: Sept. 6, 2024

Language: Английский

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