State of the art on the magnetic iron oxide Nanoparticles: Synthesis, Functionalization, and applications in wastewater treatment

Results in Chemistry, Год журнала: 2024, Номер 7, С. 101388 - 101388

Опубликована: Янв. 1, 2024

Water pollution poses significant environmental and health challenges globally due to increasing industrialization urbanization, which have led a rise in wastewater discharges containing hazardous pollutants. These pollutants not only degrade aquatic ecosystems but also pose risks human health. To address these issues, researchers been exploring various treatment technologies including adsorption specific can be removed efficiently selectively using adsorbents. Magnetic adsorbents, especially magnetite (Fe3O4), emerged as promising adsorbent material for water purification. Its high surface area, supermagnetism, ease of functionalization make it suitable the many contaminants. In this Review, we highlight recent developments Fe3O4 nano adsorbents synthesis, properties, strategies, challenges. The stability were discussed. A comparison Fe3O4-based traditional was then addressed. Finally, an outlook on opportunities future advancement practical application is provided. Such interdisciplinary research field expected stimulate further nanoscience advanced nanotechnology treatment.

Язык: Английский

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Synthesis of activated carbon from cherry tree waste and its application in removing cationic red 14 dye from aqueous environments

Applied Water Science, Год журнала: 2023, Номер 13(4)

Опубликована: Март 6, 2023

Abstract The environment is threatened by a diversity of pollutants, and synthetic dyes are considered foremost environmental pollutant among them. characteristics detected for the dye, e.g., toxicity carcinogenicity, have brought severe problems humans aquatic organisms. present study was done to clarify potential activated carbon made from cherry tree wood (CWAC) in adsorption cationic red 14 dye. In our experimental-laboratory study, changes removal efficiency were assessed considering values pH, concentration, adsorbent dose, contact time, temperature. addition, nature prepared defined based on scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET), X-ray diffraction (XRD), Fourier-transformed infrared (FTIR) spectroscopy techniques. concentration dye after completion experiments recorded using spectrophotometer at 514 nm. Evaluating attained data isotherm kinetic models also considered. Our results demonstrated enhancement studied process higher times, temperatures, pH its decline initial concentrations. = 11, time 45 min, 50 mg/L, AC mass 0.25 g/l optimal obtaining highest Langmuir pseudo-second-order (PSO) with ( R 2 0.9972) 0.9947) best isotherms description observed data, respectively. Considering results, CWAC could be effectively utilized solutions.

Язык: Английский

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Magnetic Fe3O4 nanoparticles loaded guava leaves powder impregnated into calcium alginate hydrogel beads (Fe3O4-GLP@CAB) for efficient removal of methylene blue dye from aqueous environment: Synthesis, characterization, and its adsorption performance

International Journal of Biological Macromolecules, Год журнала: 2023, Номер 246, С. 125675 - 125675

Опубликована: Июль 4, 2023

Язык: Английский

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Synthesis of activated carbon/magnetite nanocatalyst for sono-Fenton-like degradation process of 4-chlorophenol in an ultrasonic reactor and optimization using response surface method

Journal of Water Process Engineering, Год журнала: 2023, Номер 55, С. 104216 - 104216

Опубликована: Сен. 7, 2023

Язык: Английский

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Loading of zinc oxide nanoparticles from green synthesis on the low cost and eco-friendly activated carbon and its application for diazinon removal: isotherm, kinetics and retrieval study

Applied Water Science, Год журнала: 2023, Номер 13(4)

Опубликована: Март 19, 2023

Abstract Diazinon (DZN) has been reported as an important pesticide with wide application in agriculture. The entry of these compounds into water resources brought serious environmental problems due to their resistance biodegradation; thus, this study was considered be done explore the process DZN uptake and influence effective parameters. performed experimentally on a laboratory scale. Investigating structure morphology nanocomposite based different analyses, i.e., FE-SEM, FTIR, XRD. experiments Box–Behnken scheme were by surveying four operating parameters (pH, contact time, dose, concentration). Optimization experiment design software using response surface method analysis proposed model. removal efficiency obtained 100% under optimal conditions including pH = 5, dose 0.83 g/L, reaction time 55 min, concentration 5 mg/L. Considering high correlation coefficient R 2 (0.9873) $$R_{{{\text{Adj}}}}^{{2}}$$ R Adj 2 (0.9725), model (quadratic) approved. results indicative conforming kinetic pseudo-second-order correspondence isotherm Freundlich ( 0.997). Based results, adsorption AC–ZnO could introduced efficient eco-friendly technique remove DZN.

Язык: Английский

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Preparation and model construction of novel 2D nanocomposite of Zn-P-GCNN and its mechanisms of synergistic adsorption for Cu(II) and methylene blue

Journal of Cleaner Production, Год журнала: 2023, Номер 395, С. 136387 - 136387

Опубликована: Фев. 9, 2023

Язык: Английский

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Adsorptive removal of heavy metals from wastewater using Cobalt-diphenylamine (Co-DPA) complex

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

Опубликована: Янв. 29, 2024

Abstract Heavy metals like Cadmium, Lead, and Chromium are the pollutants emitted into environment through industrial development. In this work, a new diphenylamine coordinated cobalt complex (Co-DPA) has been synthesized tested for its efficiency in removing heavy from wastewater, adsorption capacity was investigated. The effectiveness of removal by Co-DPA evaluated adjusting parameters, such as adsorbent dose, pH, initial concentration, period. metal concentrations real sample were 0.267, 0.075, 0.125 mg/L Cd 2+ , Pb Cr 3+ before using as-synthesized to treat wastewater. After being treated with concentration reduced 0.0129, 0.00028, 0.00054 respectively, 80 min. 95.6%, 99.5%, 99.5% respective metals. process fitted satisfactorily Freundlich isotherm R 2 (0.999, 0.997, 0.995) respectively. kinetic data obeyed pseudo-second order pseudo-first . Based on results obtained within framework study, it is concluded that good eliminate ions wastewater solution. general, promising material water. Graphical

Язык: Английский

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Magnetic activated carbon: A promising approach for the removal of methylene blue from wastewater

Desalination and Water Treatment, Год журнала: 2024, Номер 317, С. 100146 - 100146

Опубликована: Янв. 1, 2024

The contamination of water bodies by synthetic dyes, namely methylene blue (MB), is a significant environmental concern due to their contrary effects on aquatic ecosystems. This study proposes novel approach integrating magnetic properties into activated carbon improve the removal efficiency and simplifies separation process. synthesis involved impregnation (Rice husk as precursor) with iron oxide nanoparticles ((Fe3O4-RAC), which imparted matrix. characterization studies were performed perceive morphology adsorbent. adsorption tests examined under various factors such contact time, initial MB concentration, adsorbent dosage pH. data revealed that equilibrium onto Fe3O4-RAC was achieved within 60 min, maximal strength 32.25 mg g−1. Langmuir model (R2 = 0.997) demonstrated best fit, suggesting monolayer behaviour. Furthermore, kinetics tailed pseudo-second-order 0.995), indicating chemisorption rate-determining step. results indicated positive correlation between temperature adsorption, signifying endothermic nature. facilitated from treated solution using an external field, eliminating need for additional filtration or centrifugation steps. regeneration also investigated, it found composite could be efficiently regenerated ethanol desorption agent, allowing repeated use. In conclusion, promising potential efficient reusable wastewater.

Язык: Английский

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Optimization by Box–Behnken design for environmental contaminants removal using magnetic nanocomposite

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

Опубликована: Март 23, 2024

Abstract In this study, a CoO–Fe 2 O 3 /SiO /TiO (CIST) nanocomposite was synthesized and utilized as an adsorbent to remove methylene blue (MB), malachite green (MG), copper (Cu) from aqueous environments. The characterized using field emission scanning electron microscopy (FE-SEM), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD). Input parameters included pH (3–10), contact time (10–30 min), amount (0.01–0.03 g), pollutant concentration (20–60 mg L −1 ). effects of these on the removal process efficiency were modeled optimized response surface methodology (RSM) based Box–Behnken design (BBD). RSM-BBD method demonstrated capability develop second-degree polynomial model with high validity (R ˃ 0.99) for process. optimization results revealed 98.01%, 93.06%, 88.26% MB, MG, Cu, respectively, under optimal conditions. These conditions 6, 10 min, 0.025 g, 20 . recovered through five consecutive adsorption–desorption cycles hydrochloric acid. showed approximately 12% reduction first seventh cycle. Also, Cu real water samples in achieved range 81.69–98.18%. This study demonstrates potential use CIST accessible reusable option removing pollutants aquatic

Язык: Английский

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Bisphenol A adsorption using modified aloe vera leaf-wastes derived bio-sorbents from aqueous solution: kinetic, isotherm, and thermodynamic studies

International Journal of Environmental Health Research, Год журнала: 2023, Номер 34(4), С. 2031 - 2051

Опубликована: Май 9, 2023

Reactive-oxygen-species are produced more often in the body when bisphenol A (BPA), an endocrine-disrupting-substance, is present. In this investigation, bio-sorbents from aqueous solution adapted Aloe-vera were used to survey BPA removal. leaf wastes create activated carbon, which was then analyzed using Fourier transform infrared (FTIR), Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Thermogravimetric analysis (TGA), Zeta potential, and Brunauer-Emmett-Teller (BET) techniques. It revealed that adsorption process adheres Freundlich isotherm model with R2>0.96 pseudo-second-order kinetic R2>0.99 under ideal conditions (pH = 3, contact time 45 min, concentration of 20 mg.L−1, adsorbent 2 g.L−1). After five-cycle, efficacy removal greater than 70%. The phenolic-chemicals industrial-effluent can be accomplished assistance a cost-effective effective-approach.

Язык: Английский

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