Development of nanoscale zero-valent iron embedded on polyaniline reinforced with sodium alginate hydrogel microbeads for effective adsorption of arsenic from apatite soil leachate water

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 304, P. 140841 - 140841

Published: Feb. 8, 2025

Language: Английский

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Comprehensive insights into the application of graphene-based aerogels for metals removal from aqueous media: Surface chemistry, mechanisms, and key features

Advances in Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 335, P. 103338 - 103338

Published: Nov. 14, 2024

Efficient removal of heavy metals and other toxic metal pollutants from wastewater is essential to protect human health the surrounding vulnerable ecosystems. Therefore, significant efforts have been invested in developing practical sustainable tools address this issue, including high-performance adsorbents. In respect, within last few years, graphene-based aerogels/xerogels/cryogels (GBAs) emerged drawn attention as excellent materials for removing recovering harmful valuable different aqueous media. Such an upward trend mainly due features aerogel combined with properties graphene derivatives aerogel's network, GBAs' unique three-dimensional (3D) porous structure, high porosity, low density, large specific surface area, exceptional electron mobility, adjustable rich chemistry, remarkable mechanical features, tremendous stability. This review offers a comprehensive analysis fundamental aspects phenomena related application GBAs removal. Herein, we cover all types (bottom-up) synthesized GBAs, true microporous aerogels well 3D open-cell interconnected mesoporous macroporous aerogels, foams, sponges. Indeed, provide insights into understanding suitability such important by revealing mechanisms involved factors inducing controlling highly selective behavior these distinctive Besides conventional adsorptive pathways, critically analyzed ability electrochemically capture (i.e., electrosorption) their efficiency detoxification through reductive adsorption-reduction-readsorption). We also covered reusability aspect (GAs)-based adsorbents, which strongly linked outstanding stability efficient desorption captured metals. Furthermore, view numerous environmental benefits, development magnetically recoverable GAs highlighted. Moreover, shed light on potential scalable implementation evaluating performance continuous processes while highlighting versatility demonstrated remove multiple contaminants along Finally, provides readers accessible overview critical discussion major recent achievements regarding applications GAs-based adsorbents ions Along our recommendations suggestions future work new research directions opportunities, aims serve resource researchers field treatment inspire further progress towards next-generation expanding application.

Language: Английский

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Fabrication of novel antimicrobial nanocomposite films based on polyvinyl alcohol, bacterial cellulose nanocrystals, and boric acid for food packaging

Journal of Food Measurement & Characterization, Journal Year: 2024, Volume and Issue: 18(3), P. 2146 - 2161

Published: Jan. 4, 2024

Language: Английский

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Application of periwinkle shell for the synthesis of calcium oxide nanoparticles and in the remediation of Pb2+-contaminated water

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 30, 2024

Language: Английский

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Biogenic mediated green synthesis of NiO nanoparticles for adsorptive removal of lead from aqueous solution

Heliyon, Journal Year: 2024, Volume and Issue: 10(11), P. e31669 - e31669

Published: May 22, 2024

The spread of heavy metal in water bodies, particularly lead (Pb), has occurred as a global threat to human existence. In this study, NiO NPs was prepared by coprecipitation approach using Hagenia abyssinica plant extract mediated reducing and template agent for the removal Pb from aqueous solution. X-ray crystallographic diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR), Brunauer-Emmett-Teller (BET) techniques were employed characterization NPs. efficacy adsorbent evaluated on Pb2+ varying adsorptive parameters such pH, Bio-NiO amount, interaction time, concentration. adsorption 99.99% at pH 0.06 g dose, 60 mg L-1 concentrations within 80 min contact time. higher efficiency is could be due surface area (151m2g-1). process best fitted with Freundlich isotherm pseudo-second order kinetic models, implying that it chemical heterogeneous surface. intensity (n) found 1/n<1 (0.47) indicating favorable maximum capacity 60.13 mgg-1. reusability studies confirmed synthesized bio-NiO an effective removing solution up five cycles.

Language: Английский

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Preparation and modification of polymer microspheres, application in wastewater treatment: A review

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 366, P. 121807 - 121807

Published: July 17, 2024

Language: Английский

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Sulfur-Doped Binary Layered Metal Oxides Incorporated on Pomegranate Peel-Derived Activated Carbon for Removal of Heavy Metal Ions

Molecules, Journal Year: 2022, Volume and Issue: 27(24), P. 8841 - 8841

Published: Dec. 13, 2022

In this study, a novel biomass adsorbent based on activated carbon incorporated with sulfur-based binary metal oxides layered nanoparticles (SML-AC), including sulfur (S2), manganese (Mn), and tin (Sn) oxide synthesized via the solvothermal method. The newly SML-AC was studied using FTIR, FESEM, EDX, BET to determine its functional groups, surface morphology, elemental composition. Hence, performed an appropriate specific area for raw AC (356 m2·g−1) modified AC-SML (195 m2·g−1). To prepare water samples ICP-OES analysis, suggested nanocomposite used as efficient remove lead (Pb2+), cadmium (Cd2+), chromium (Cr3+), vanadium (V5+) from oil-rich regions. As chemical structure of ions is influenced by solution pH, parameter considered experimentally, pH 4, dosage 50 mg, time 120 min were found be best high capacity all adsorbates. At different experimental conditions, provided satisfactory adsorption 37.03−90.09 mg·g−1 Cd2+, Pb2+, Cr3+, V5+ ions. experiment explored, method fitted Langmuir model (R2 = 0.99) compared Freundlich 0.91). kinetic models free energy (<0.45 KJ·mol−1) parameters demonstrated that rate limited pseudo-second order under physical mechanism, respectively. Finally, study recyclable at least five times in continuous adsorption−desorption

Language: Английский

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Eco-Friendly Electroless Template Synthesis of Cu-Based Composite Track-Etched Membranes for Sorption Removal of Lead(II) Ions

Membranes, Journal Year: 2023, Volume and Issue: 13(5), P. 495 - 495

Published: May 7, 2023

This paper reports the synthesis of composite track-etched membranes (TeMs) modified with electrolessly deposited copper microtubules using deposition baths based on environmentally friendly and non-toxic reducing agents (ascorbic acid (Asc), glyoxylic (Gly), dimethylamine borane (DMAB)), comparative testing their lead(II) ion removal capacity via batch adsorption experiments. The structure composition composites were investigated by X-ray diffraction technique scanning electron atomic force microscopies. optimal conditions for electroless plating determined. kinetics followed a pseudo-second-order kinetic model, which indicates that is controlled chemisorption process. A study was conducted applicability Langmuir, Freundlich, Dubinin–Radushkevich models to define equilibrium isotherms isotherm constants prepared TeMs. Based regression coefficients R2, it has been shown Freundlich model better describes experimental data TeMs ions.

Language: Английский

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Novel magnetic polyethersulfone-polyethyleneimine-based microbeads for removal of lead ions from water: Kinetics and thermodynamics

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 387, P. 122632 - 122632

Published: July 20, 2023

Language: Английский

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Effect of conductive polyaniline on the cationic and anionic dye adsorption properties of amphoteric alginate/chitosan composite foams

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112532 - 112532

Published: March 18, 2024

Language: Английский

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