Adsorptive removal of synthetic dye from its aqueous solution by using chitosan-bentonite composite: DFT and experimental studies

Polymer Bulletin, Год журнала: 2024, Номер 81(14), С. 12795 - 12817

Опубликована: Май 24, 2024

Abstract This research investigates the adsorption efficiency of a chitosan-bentonite (Ch–B) composite in removing methyl orange (MO), common textile dye, from aqueous solutions. The study integrates experimental and theoretical analyses, employing density functional theory (DFT) to gain insights into molecular interactions between material MO molecules. Ch–B was characterized using various techniques, including FT-IR spectroscopy, XRD, SEM–EDX. results indicate that exhibits high capacity for MO, with optimal conditions identified efficient removal. Langmuir model found best fit data 117 mg g −1 . Adsorption thermodynamics showed process spontaneous, feasible, exothermic. DFT calculation are correlated findings confirm predictions improve overall understanding process. Electronic structure calculations reveal nature molecules, hydrogen bonds electrostatic forces.

Язык: Английский

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Impact of environmental pollution from human activities on water, air quality and climate change

Deleted Journal, Год журнала: 2024, Номер unknown

Опубликована: Июнь 1, 2024

Interactions between humans and the physical environment in which they live have been studied extensively reason being that human activities to a great extent exert an influence on (biotic abiotic). Pollution other hand is introducing harmful substances into are damaging living organisms. Pollutants can be gases, liquids or solids produced concentrations higher than usual diminish quality of environment. Human adverse effects by polluting air we breathe, water drink even cause climatic changes. In terms provision manifold services, technology societal modernization, industrial revolution recorded outstanding success, it however, was beginning mass production pollutants emitted caused health our era, industrialization urbanization evidently reaching unprecedented disturbing proportions globally with anthropogenic pollution one major public hazards, accounting for almost 9 million deaths annually. This research therefore aims investigate environmental from activities, particularly water, climate change provide comprehensive understanding interconnectedness their consequences. Furthermore, since emerges as global concern developing countries; this study thus also highlights significance efficient wastewater treatment crucial strategy sustainable development, exploring its potential contribution mitigation.

Язык: Английский

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Green synthesis of silver nanoparticles and its environmental sensor ability to some heavy metals

BMC Chemistry, Год журнала: 2024, Номер 18(1)

Опубликована: Янв. 6, 2024

Abstract This study marks a pioneering effort in utilizing Vachellia tortilis subsp. raddiana (Savi) Kyal. & Boatwr., (commonly known as acacia ) leaves both reducing and stabilizing agent the green “eco-friendly” synthesis of silver nanoparticles (AgNPs). The research aimed to optimize AgNPs process by investigating influence pH, temperature, extract volume, contact time on reaction rate resulting AgNPs' morphology well discuss potential detecting some heavy metals. Various characterization methods, such UV–vis spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR), Zeta sizer, EDAX, transmitting (TEM), were used thoroughly analyze properties synthesized AgNPs. XRD results verified successful production with crystallite size between 20 30 nm. SEM TEM analyses revealed that are primarily spherical rod-shaped, sizes ranging from 8 41 Significantly, was notably higher basic conditions (pH 10) at 70 °C. These underscore effectiveness source for sustainable synthesis. also examined ability detect various metal ions colorimetrically, including Hg 2+ , Cu Pb Co . UV–Vis proved useful this purpose. color shifts brownish-yellow pale yellow, colorless, red, reddish yellow when ions, respectively. change an alteration absorbance band, vanishing shifting 423 352 nm, 438 429 nm showed high sensitivity, detection limits 1.322 × 10 –5 M, 1.37 –7 1.63 1.34 –4 M highlights using eco-friendly their environmental sensors metals, showcasing strong capabilities colorimetric

Язык: Английский

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Water Quality, Air Pollution, and Climate Change: Investigating the Environmental Impacts of Industrialization and Urbanization

Water Air & Soil Pollution, Год журнала: 2025, Номер 236(2)

Опубликована: Янв. 3, 2025

Язык: Английский

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Polydopamine-based nanoadsorbents for water purification

Chemical Engineering Journal, Год журнала: 2025, Номер 505, С. 159314 - 159314

Опубликована: Янв. 9, 2025

Язык: Английский

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Graphene oxide as an emerging sole adsorbent and photocatalyst: Chemistry of synthesis and tailoring properties for removal of emerging contaminants

Chemosphere, Год журнала: 2024, Номер 352, С. 141483 - 141483

Опубликована: Фев. 18, 2024

Язык: Английский

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Ultrastructural investigation of iron oxide nanoparticles accumulation in the liver of common carp (Cyprinus carpio Linnaeus, 1758)

Aquatic Toxicology, Год журнала: 2024, Номер 272, С. 106961 - 106961

Опубликована: Май 16, 2024

Язык: Английский

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Effective removal of personal care product residues from aqueous media using hydrophobic deep eutectic solvents: Experimental and computational approach

Microchemical Journal, Год журнала: 2024, Номер 197, С. 109891 - 109891

Опубликована: Янв. 2, 2024

Язык: Английский

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Molecular imprinting technology for next-generation water treatment via photocatalysis and selective pollutant adsorption

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112768 - 112768

Опубликована: Апрель 10, 2024

Язык: Английский

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Recent progress in green thin film membrane based materials for desalination: Design, properties and applications

Desalination, Год журнала: 2024, Номер 591, С. 117973 - 117973

Опубликована: Авг. 5, 2024

Язык: Английский

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