Mechanism of Enhanced Fluoride Adsorption Using Amino-Functionalized Aluminum-Based Metal–Organic Frameworks

Water, Journal Year: 2024, Volume and Issue: 16(20), P. 2889 - 2889

Published: Oct. 11, 2024

Due to the increasing fluoride concentrations in water bodies, significant environmental concerns have arisen. This study focuses on aluminum-based materials with a high affinity for fluorine, specifically enhancing metal–organic frameworks (MOFs) amino groups improve their adsorption and defluorination performance. We systematically investigate factors influencing mechanisms governing behavior of amino-functionalized MOF aqueous environments. An SEM, XRD, FT-IR characterization confirms successful preparation NH2-MIL-101 (Al). In 10 mg/L ion solution at pH 7.0, removal efficiency increases dosage (Al), although marginal improvement decreases beyond 0.015 g/L. Under identical conditions, capacity (Al) is seven times greater than that (Fe). demonstrates effective across broad range, superior uptake acidic conditions. At concentration 7 mg/L, g 3.0, equilibrium achieved within 60 min, 31.2 mg/g. analysis using isotherm models reveals follows monolayer model, while kinetic studies indicate predominant mechanism chemical adsorption. research provides scientific basis advanced treatment fluoride-containing wastewater, offering theoretical practical contributions.

Language: Английский

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Removal of Chemical Oxygen Demand (COD) from the Wastewater using Plant Based Nanobiomass

Water Conservation Science and Engineering, Journal Year: 2025, Volume and Issue: 10(1)

Published: Jan. 31, 2025

Language: Английский

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Preparation of nanocellulose-based adsorbent from plant leaves for application in oily wastewater treatment

International Journal of Environmental Studies, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 24

Published: March 21, 2025

Language: Английский

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Hybrid Activated Carbon/ Maltodextrin-Functionalized Fibrous Silica for Acetaminophen and Amoxicillin Adsorption: Advanced Statistical Physics Modelling

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121691 - 121691

Published: April 1, 2025

Language: Английский

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Evaluating and Selecting Kinetic and Isotherm Models for Copper and Nickel Removal Using Cow Bone Char as an Adsorbent via Excel Solver Functions

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(9), P. 4316 - 4316

Published: May 1, 2025

This study explores the effectiveness of cow bone char as a low-cost, eco-friendly, and biodegradable adsorbent for removing Cu(II) Ni(II) ions from acidic wastewater challenging is due to heavy metal-contaminated industrial wastewater. Batch adsorption experiments were conducted evaluate performance, with advanced nonlinear kinetic isotherm models applied analyze behavior. Model fitting was performed using Microsoft Excel Solver, model selection validated Akaike Information Criterion Average Absolute Relative Deviation Percentage. The FL-PFO provided best fit time-dependent data, while Liu Toth most accurately described equilibrium adsorption. Maximum capacities 110 mg g−1 95 Ni(II), exhibiting faster more complete removal. Reusability testing over five cycles showed good potential repeated use, though gradual efficiency decline structural degradation limited site regeneration. These results confirm suitability sustainable effective metal removal, particularly in low-resource or decentralized water treatment systems.

Language: Английский

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Effective enhancement of copper selective removal from sodium alginate-based gel adsorbent by dual construction of slit-shaped structure and internal channel

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 141274 - 141274

Published: Feb. 1, 2025

Language: Английский

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