Adsorption of Organic Pollutants from Wastewater Using Chitosan-Based Adsorbents

Polymers, Journal Year: 2025, Volume and Issue: 17(4), P. 502 - 502

Published: Feb. 14, 2025

Among the naturally occurring polysaccharides, chitosan is second-most abundant polysaccharide. It obtained from chitin through a process known as deacetylation. biodegradable, biocompatible, and non-toxic, which made it suitable for various environmental applications. In present review, structure, properties, characteristics of were discussed. addition, modified forms (including cross-linked, nanoparticles, functionalized, grafted chitosan) enumerated. The applications these in adsorption organic pollutants (such antibiotics, dyes, pesticides, microplastics, polyaromatic hydrocarbons, parabens, polychlorobiphenyls) are comprehensively reviewed. Furthermore, mechanism adsorption, isotherm (Langmuir Freundlich), kinetic models highlighted. Finally, economic viability assessment impact processing tons shrimp shells into annually

Language: Английский

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Radiation-induced modification of chitosan and applications for water and wastewater treatment

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 467, P. 142924 - 142924

Published: June 19, 2024

Language: Английский

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Exploring the mechanisms of diazinon adsorption onto alpha and beta cyclodextrins through molecular dynamics simulations: Insights into environmentally friendly pesticide remediation

Results in Engineering, Journal Year: 2024, Volume and Issue: 21, P. 102020 - 102020

Published: March 1, 2024

This study investigated the adsorption of Diazinon on α and β-Cyclodextrins (CDs) through Molecular Dynamics Simulations. The entrance point variation in diazinon is analyzed, revealing distinct preferences for entry into β-CDs. center mass distance CDs investigated, highlighting dynamic behavior within β-CD. Interaction energies between diazinon, CD, water are explored, emphasizing significance van der Waals interactions adsorption. Hydrogen bonding analysis reveals preferential α-CD, attributed to number arrangement hydrogen bonds. Free energy calculations using Bennett acceptance ratio method indicate a stronger affinity supported by molecular electrostatic potential maps. also examines hydration capacity molecules' distribution, indicating differences Radial distribution function (RDF) illustrates process, molecule expulsion upon entry. Structural stability assessed root mean squared deviation, equilibrium attainment. Gibbs free suggest hydrophobic α-CD cavity. comprehensive contributes valuable insights MD diazinon-CDs interactions, shedding light their mechanisms applications wastewater treatment.

Language: Английский

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Design and Synthesis of Kaolin/Alumina Incorporated Biopolymeric Hybrid Composites for Efficient Malachite Green Adsorption

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(7)

Published: Feb. 1, 2025

Abstract The toxic dyes contaminated in water resources can cause dangerous diseases and severely affect the living organisms. In this research work, kaolin (KL) clay alumina (AO) ceramic was incorporated with alginate (Alg) chitosan (CS) biopolymers namely KLAOAlg KLAOCS composites were developed utilized for adsorption of most malachite green (MG) dye. morphology physico‐chemical nature investigated via SEM, FTIR, elemental mapping, XRD EDAX analysis. batch mode experiments performed to investigate different factors that affecting MG including reaction time, pH, co‐ions, adsorbent dosage, initial concentration temperature. Both reached their utmost capacity 42.00 45.00 mg/g at a shaking time 40 min composite dosage 0.1 g 100 mg/L solution. equilibrium data collected fit Langmuir isotherm, whereas kinetic aligned pseudo‐second‐order model. results derived from thermodynamic considerations indicate process endothermic, feasible, spontaneous. mechanism superior onto is primarily driven by hydrogen bonding electrostatic interaction. regeneration test explored be reused upto five cycles as promising adsorbents removal.

Language: Английский

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Design and preparation of a novel Mg–Al LDH@EDTA-Melamine nanocomposite for effective adsorptive removal of methylene blue and rhodamine B dyes from water

Heliyon, Journal Year: 2024, Volume and Issue: 10(12), P. e32447 - e32447

Published: June 1, 2024

Language: Английский

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Remediation of tetracycline pollution using microplastics, green materials, membranes and sonocatalysts: a review

Environmental Chemistry Letters, Journal Year: 2024, Volume and Issue: 22(6), P. 2943 - 2975

Published: Oct. 9, 2024

Language: Английский

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Synthesis of Ag2ZnGeO4/g-C3N4 binary heterostructure: A Z-scheme heterojunction photocatalyst for enhanced tetracycline degradation under visible light

Chemical Engineering Science, Journal Year: 2024, Volume and Issue: 296, P. 120253 - 120253

Published: May 21, 2024

Language: Английский

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Confiscation of Cr(VI) by cross-linked shrimp waste-derived chitosan @Al2O3 nanocomposite: Experimental and theoretical approach

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: unknown, P. 140182 - 140182

Published: Sept. 1, 2024

Language: Английский

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Fabrication of Znin2s4/Ceo2 S-Scheme Heterojuntion for the Enhanced Removal of Tetracycline Under Visible Light Irradiation

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

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Fabrication of ZnIn ₂S ₄/CeO ₂ S-Scheme Heterojuntion for the Enhanced Removal of Tetracycline Under Visible Light Irradiation

Published: Jan. 1, 2024

Language: Английский

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