Preparation polymer-grafted magnetic starch adsorption material St/Fe3O4-g-p(GMA-r-HEMA) used for removal of heavy metals

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 685, С. 133255 - 133255

Опубликована: Янв. 21, 2024

Язык: Английский

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Remediation of malachite-green dye from textile wastewater using biosorbent almond shell-based cellulose

Journal of Molecular Liquids, Год журнала: 2024, Номер 399, С. 124435 - 124435

Опубликована: Март 12, 2024

The presence of malachite green (MG) in surface waters represents a major health hazard for aquatic organisms and communities living near contaminated water sources. In this study, almond shell adsorbents prepared from the four types Marcona (M), Fournat de Brézenaud (FZ), Ferraduel (FD) Ferriages (FG), used to clean wastewater textile industry that had been with color MG. Optimal adsorption parameters were determined through batch experiments using standard dye solution. Further, SEM, XRD, BET, FTIR employed characterizing biosorbents. examination experimental data isotherms kinetic models revealed MG occurs monolayer, chemical as rate-controlling step. maximum capacities, under pH around 7 temperature 35 °C 40.82, 60.98, 48.08, 117.65 mg/g M, FD, FG, FZ, respectively. addition, MC simulation models, DFT, calculations performed provide more detailed understanding mechanism. Topological studies such NCI, RDG, LOL, ELF conducted discussed Multiwave function (Multiwfn) VMD programs liquid phase. conclusion, chemisorption limits rate process, cation is susceptible nucleophilic than electrophilic attacking. Based on these theoretical results, it possible consider materials an inexpensive viable solution eliminate wastewater. Adsorption cellulose can be considered feasible strategy treatment, optimized use real samples at even lower concentrations. This approach offers effective technological alternative conventional methods retention

Язык: Английский

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Efficient removal of toxic dyes malachite green and fuchsin acid from aqueous solutions using Pullulan/CMC hydrogel

Polymer, Год журнала: 2024, Номер 307, С. 127203 - 127203

Опубликована: Май 27, 2024

Язык: Английский

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Green synthesis of gold nanoparticles using macroalgae Halimeda macroloba extract and their photocatalytic degradation of methylene blue and methyl orange

Polymers for Advanced Technologies, Год журнала: 2024, Номер 35(4)

Опубликована: Апрель 1, 2024

Abstract Green synthesis of gold nanoparticles (AuNPs) is gaining attention researchers because their varieties biomedical and environmental applications. This study reported the novel eco‐friendly AuNPs using green macroalgae Halimeda macroloba (HM) extract evaluate photocatalytic potential. The synthesized H. mediated (HM‐AuNPs) was characterized UV–visible spectrophotometry, Fourier‐transform infrared (FT‐IR) spectroscopy, transmission electron microscope (TEM), scanning microscope‐energy dispersive x‐ray photoelectron spectroscopy (XPS), particle size distribution (PSD) anlaysis. spectrum shows a sharp intense plasmonic resonance peak at 543 nm. bioactive compounds present in HM were primarily responsible for biological reduction ions validated by FT‐IR analysis. XRD analysis proved crystalline face centered cubic structure HM‐AuNPs. average 18.72 nm morphological evidences obtained from images TEM. metallic form biosynthesised HM‐AuNPs confirmed XPS results with distinctive binding energy. degradation ability investigated against methylene blue (MB) orange (MO) dyes under sunlight irradiation. exhibited 97.23% 89.91% activity MB MO after 90 min exposure to sunlight, respectively. overall this research indicate that can be used as an effective option industrial dyes.

Язык: Английский

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Sodium alginate-encapsulated nano-iron oxide coupled with copper-based MOFs (Cu-BTC@Alg/Fe3O4): Versatile composites for eco-friendly and effective elimination of Rhodamine B dye in wastewater purification

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 274, С. 133498 - 133498

Опубликована: Июнь 27, 2024

Язык: Английский

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Functionalization strategy of carboxymethyl cotton gauze fabrics with zeolitic imidazolate framework-67 (ZIF-67) as a recyclable material for biomedical applications

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 279, С. 135148 - 135148

Опубликована: Авг. 28, 2024

Язык: Английский

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Cellulose –Polyvinylalcohol supported magnetic nanocomposites from lentil husk for sequestration of cationic dyes from the aqueous solution: Kinetics, isotherm and reusability studies

Journal of Contaminant Hydrology, Год журнала: 2025, Номер 269, С. 104503 - 104503

Опубликована: Янв. 21, 2025

Язык: Английский

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Adsorptive removal of toxic methylene blue and crystal violet dyes from aqueous solutions using Prunus spinosa: isotherm, kinetic, thermodynamic, and error analysis

Biomass Conversion and Biorefinery, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Язык: Английский

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Synthesis, Characterization, and Application of an Ecofriendly C/TiO₂ Composite to Efficiently Remove Reactive Black 5 (RB-5) Textile Dye from Aqueous Solutions

ACS Omega, Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

The textile industry is known for its high water consumption and production of toxic effluents, including azo dyes such as Reactive Black 5 (RB-5), which are resistant to removal. Adsorption offers a promising, cost-effective solution, particularly with value-added composites made from abundant materials. This study synthesized, characterized, applied C/TiO2-based composite remove RB-5 water. XRD analysis only confirmed anatase the primary support, while FTIR detected adsorbate molecules on C/TiO2 surface, marked by appearance sulfone group band. Raman XPS analyses indicated reduced Sp2 carbon content lower graphitization after adsorption, probably due mechanical stress. Additionally, nitrogen physisorption demonstrated that material mesoporous, surface area 56.24 m2 g–1, pore diameter 9.41 nm. exhibited strong affinity anionic species like RB-5, especially at pH values below point zero charge (7.47). Batch studies Avrami kinetic adsorption rate 0.3023 min–1 (at 25 °C), temperature effects followed Arrhenius model, an activation energy +41.10 kJ mol–1. Sips isotherm data maximum capacity 17.48 mg g–1 55 °C. Thermodynamic entropically controlled, endothermic, spontaneous process temperatures. These aspects confirm potential eco-friendly effective removal aqueous solutions.

Язык: Английский

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A sustainable strategy for mitigating water pollution: Photocatalytic enhancement of hydrothermally synthesized hydrochars from waste parsley stalks via doping magnetite and sphalerite ores

Journal of Water Process Engineering, Год журнала: 2025, Номер 70, С. 106925 - 106925

Опубликована: Янв. 9, 2025

Язык: Английский

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