Insights into the Adsorption of Cr(VI) on Activated Carbon Prepared from Walnut Shells: Combining Response Surface Methodology with Computational Calculation

Clean Technologies, Journal Year: 2024, Volume and Issue: 6(1), P. 199 - 220

Published: Feb. 26, 2024

Walnut shells were used to produce highly microporous activated carbon. The prepared walnut found be an efficient adsorbent for removing Cr(VI). study the response surface methodology investigate four independent variables effect: Cr(VI) concentration, pH, AC-Ws dose, and temperature on removal efficiency, which was studied in concentration range of 0.1 0.3 g/L, 4 10, 15 35 °C 1 5 mg/L, respectively. Through experiments designed, optimum conditions determined 4, 0.23 298 k, 2 At these conditions, efficiency 93%. thermodynamic adsorption process showed a spontaneous exothermic nature. kinetic model that explains experimental data is pseudo-second-order model. Furthermore, Langmuir isotherm estimated excellent representation equilibrium data. Quantum calculations NCI analyses also performed get more light mechanism atom its complex form surface.

Language: Английский

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Investigation into highly selective uranium adsorption using a water-stable chitosan/ellagic acid/Cu-metal–organic framework material

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118768 - 118768

Published: March 1, 2025

Language: Английский

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Exploring the synthesis, properties, and potential of chitosan-functionalized metal-organic frameworks in emerging applications

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 148, P. 101387 - 101387

Published: Oct. 9, 2024

Language: Английский

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Selective detection of food contaminants using engineered gallium-organic frameworks with MD and metadynamics simulations

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

Published: Aug. 5, 2024

The exclusion mechanism of food contaminants such as bisphenol A (BPA), Flavonoids (FLA), and Goitrin (GOI) onto the novel gallium-metal organic framework (MOF) functionalized MOF with oxalamide group (MOF-OX) is evaluated by utilizing molecular dynamics (MD) Metadynamics simulations. atoms in molecules (AIM) analysis detected different types atomic interactions between contaminant substrates. To assess this procedure, a range descriptors including interaction energies, root mean square displacement, radial distribution function (RDF), density, hydrogen bond count (HB), contact numbers are examined across simulation trajectories. most important elements stability systems under examination found to be stacking π-π HB interactions. It was confirmed significant value total energy for BPA/MOF-OX (- 338.21 kJ mol

Language: Английский

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Exploring Principal Component Analysis for Enhanced Insights into Physical and Operational Characteristics of Palladium-Based Membrane Composites: Advancing Hydrogen (H2) Energy Potential to Revolutionize the Energy Sector

Processes, Journal Year: 2025, Volume and Issue: 13(1), P. 192 - 192

Published: Jan. 11, 2025

In this study, we used Principal Component Analysis (PCA) to evaluate the physical and operational properties of palladium (Pd)-based membrane composites, focusing on variables like temperature, differential pressure (ΔP), thickness, hydrogen (H2) permeability, H2 flux. The analysis revealed that first two principal components explained 53.16% total variance, indicating moderate explanatory power. Interdependencies were observed among flux, while ΔP functioned independently. This study found similarities membranes, such as eco-friendly chitosan-based which performed comparably conventional options Pd–PSS Pd–Cu/αAl2O3. Overall, PCA proved be an invaluable tool for uncovering hidden patterns, optimizing experimental processes, deepening understanding Pd-based membranes. findings underscore PCA’s potential enhance material performance promote sustainable alternatives, with practical benefits advancing separation technologies. illustrates how data-driven approaches can refine drive innovation in design.

Language: Английский

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Alginate versus Chitosan for Templating Growth and Shaping HKUST‐1 as Porous CO₂‐Adsorbent Beads

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(5)

Published: Feb. 1, 2025

Abstract This study aims at elucidating the role of polysaccharide skeleton (alginate versus chitosan) during growth and shaping HKUST‐1 as porous beads. Although two biopolymers afford an open hydrogel network, freeze‐drying step was crucial with water medium being inappropriate to preserve crystalline framework HKUST‐1. Alternatively, drying in ethanol circumvented this drawback by keeping intact structure However, a contrasting behavior observed resulting polysaccharide@HKUST‐1 beads, grown alginate underwent dramatic collapse, whereas self‐standing, microspheres could be obtained using chitosan templating route. The chitosan@HKUST‐1 cryogel displays enhanced CO 2 capture (2.67 mmol.g −1 ) compared its analogs shaped alginate, making consequently better option for structuring MOF‐based adsorbents.

Language: Английский

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Valorization of food wastes by catalytic metal–organic frameworks/chitosan platform and microalgae cultivation

Journal of the Science of Food and Agriculture, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

Abstract Innovative technologies can convert food waste into an economic opportunity. A potential approach to be discussed in this review article is combining microalgae cultivation with catalytic metal–organic frameworks (MOFs) and chitosan platforms. Due the high availability of nutrients organic content, classified as one most promising feedstocks for bioprocessing. MOFs are known surface area, modulable porosity, property adsorb molecules thus being recently used efficient catalysts related valorization wastes. Chitosan a natural polyelectrolyte copolymer exhibiting excellent biological properties, making it attractive platform fabricate diverse biomedical materials. The recent research proposes another use – resource producing high‐value In particular, studies concentrate on designing molecular porous MOF platforms applications valorization. One important would tailor synthetic properties functionalities chitosan‐based allowing them efficiently utilized. facile strategy established herein provides new way combine converting desirable biomass. This delivers future‐oriented idea regarding how co‐participated harvesting followed by perspective challenges future. © 2025 Society Chemical Industry.

Language: Английский

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Metal framework functionalized with nitro groups and chitosan composite adsorption of Congo red

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 305, P. 141140 - 141140

Published: Feb. 15, 2025

Language: Английский

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MOF/Chitosan Composites: An Emerging Class of Multifunctional Materials for Diverse Applications

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

Language: Английский

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Synthesis, characterization and computational study of chitosan-modified pH-responsive Mag@ZIF-8/CS drug delivery system loaded with magnolol for sustained drug release and synergistic antibacterial activity

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 142144 - 142144

Published: March 1, 2025

Language: Английский

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