Synthesis, characterization and application of chitosan/graphene oxide/copper ferrite nanocomposite for the adsorptive removal of anionic and cationic dyes from wastewater

RSC Advances, Год журнала: 2023, Номер 13(8), С. 5337 - 5352

Опубликована: Янв. 1, 2023

The increased discharge of water pollutants drives the development new and effective wastewater remediation methods. Herein, a magnetic nanocomposite chitosan-graphene oxide (GO) decorated with copper ferrite (MCSGO) was synthesized under ultrasound agitation applied to removal Safranin O (SAF) indigo carmine (IC) dyes from wastewater. structural, magnetic, physicochemical features as-prepared MCSGO have been thoroughly investigated using various characterization techniques. operational parameters such as mass, contact time, pH, initial dye concentration were investigated. effects diverse coexisting species on both elimination processes examined. experimental results demonstrated that adsorption capacity for IC SAF 112.6 66.15 mg g-1, respectively. Five different isotherms two-parameter (Langmuir, Tekman, Freundlich) three-parameter (Sips, Redlich-Peterson) models. Thermodynamic studies revealed endothermic spontaneous, anionic cationic molecules randomly arranged onto adsorbent nanoparticles. Moreover, mechanism deduced. Furthermore, even after five cycles desorption, showed no significant loss in efficiency, indicating it has superior stability recycling potential.

Язык: Английский

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The use of chitosan-based composites for environmental remediation: A review

International Journal of Biological Macromolecules, Год журнала: 2023, Номер 242, С. 124787 - 124787

Опубликована: Май 17, 2023

Язык: Английский

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Efficient photodegradation of methyl orange and bactericidal activity of Ag doped ZnO nanoparticles

Journal of the Indian Chemical Society, Год журнала: 2023, Номер 100(2), С. 100920 - 100920

Опубликована: Янв. 21, 2023

Язык: Английский

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ZnO nanostructures – Future frontiers in photocatalysis, solar cells, sensing, supercapacitor, fingerprint technologies, toxicity, and clinical diagnostics

Coordination Chemistry Reviews, Год журнала: 2024, Номер 515, С. 215942 - 215942

Опубликована: Май 20, 2024

Язык: Английский

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Ficus carica latex mediated biosynthesis of zinc oxide nanoparticles and assessment of their antibacterial activity and biological safety

Nano-Structures & Nano-Objects, Год журнала: 2024, Номер 38, С. 101163 - 101163

Опубликована: Апрель 25, 2024

Язык: Английский

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Synthesis, structural, optical, and thermal properties of LaFeO3/Poly(methyl methacrylate)/Poly(vinyl acetate) nanocomposites for radiation shielding

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Фев. 14, 2024

Abstract This work is an attempt to develop flexible radiation shielding based on a blend of polymethyl methacrylate (PMMA)/polyvinyl acetate (PVAc) and LaFeO 3 nanoparticles (NPs). /PMMA/PVAc were made using simple chemical techniques. A high-resolution transmission electron microscope (HR-TEM) X-ray diffraction (XRD) showed that well-crystallized NPs with particles 79 nm in size orthorhombic shape obtained. In addition, XRD confirmed the existence PMMA, PVAc, nanocomposite films. Fourier transform infrared (FTIR) reactive functional groups interacted each other. Field emission-scan (FE-SEM) analysis PMMA PVAc form homogenous spread out inside surface. The samples transmittance range 30–74% small extinction coefficient (≤ 0.08). exhibited dual-band gap structure, direct (indirect) band shrank from 5.1 4.7 eV (4.9 4.4 eV). thermal analyses are thermally stable up 260 °C. Phy-X/PSD software was used figure theoretical gamma-ray attenuation parameters, such as mass coefficient, mean free path, half-value layer, for different PMMA/PVAc + x% composites. It demonstrated 10 wt% sample exhibits much better effectiveness than PMMA/PVAc, hence it suitable protecting against radiation.

Язык: Английский

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Green synthesis of copper oxide nanoparticles using Macroptilium Lathyroides (L) leaf extract and their spectroscopic characterization, biological activity and photocatalytic dye degradation study

Journal of Molecular Structure, Год журнала: 2023, Номер 1301, С. 137404 - 137404

Опубликована: Дек. 23, 2023

Язык: Английский

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Multitasking needle-shaped copper oxide nanorods decorated cystine modified polymer/graphene oxide nanocomposite for 4-nitrophenol reduction, dye degradation, and textile effluent treatment

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(2), С. 112346 - 112346

Опубликована: Фев. 27, 2024

Язык: Английский

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Hierarchical ZnO/ZnFe2O4 yolk-shell adsorbent as a promising material for phosphate recovery and adsorption of organic pollutants from the simulated wastewater

Separation and Purification Technology, Год журнала: 2024, Номер 348, С. 127598 - 127598

Опубликована: Апрель 20, 2024

Язык: Английский

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Plasmonic Nanocomposites of ZnO-Ag Produced by Laser Ablation and Their Photocatalytic Destruction of Rhodamine, Tetracycline and Phenol

Materials, Год журнала: 2024, Номер 17(2), С. 527 - 527

Опубликована: Янв. 22, 2024

Hydrosphere pollution by organic pollutants of different nature (persistent dyes, phenols, herbicides, antibiotics, etc.) is one the urgent ecological problems facing humankind these days. The task water purification from such can be effectively solved with help modern photocatalytic technologies. This article devoted to study properties composite catalysts based on ZnO modified plasmonic Ag nanoparticles. All materials were obtained laser synthesis in liquid and differed their silver content preparation conditions, as additional irradiation and/or annealing produced powders. prepared ZnO-Ag powders investigated electron microscopy, X-ray diffraction UV-Vis spectroscopy. Photocatalytic tests carried out well- known test molecules dye rhodamine B, phenol common antibiotic tetracycline) using LED light sources wavelengths 375 410 nm. introduction small concentrations (up 1%) nanoparticles shown increase efficiency photocatalyst expanding its spectral range. Both conditions material composition optimized obtain photocatalysts highest efficiency. Finally, operation mechanisms distribution are discussed.

Язык: Английский

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