Soil, air, and water pollution from mining and industrial activities: sources of pollution, environmental impacts, and prevention and control methods

Results in Engineering, Год журнала: 2024, Номер 23, С. 102729 - 102729

Опубликована: Авг. 15, 2024

Язык: Английский

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A comprehensive review on novel zeolite-based adsorbents for environmental pollutant

Journal of Hazardous Materials Advances, Год журнала: 2025, Номер unknown, С. 100617 - 100617

Опубликована: Янв. 1, 2025

Язык: Английский

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Efficient removal of Zn(II) ions from aqueous media using a facilely synthesized nanocomposite based on chitosan Schiff base

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

Опубликована: Июль 30, 2024

The development of nanomaterials incorporating organic components holds significant importance in addressing the efficient removal metal ions through adsorption. Hence, this study, a novel MnFe2O4/chitosan/Schiff base nanocomposite was successfully synthesized by crosslinking MnFe2O4 nanoparticles with functionalized chitosan using Schiff base. created condensation reaction between 2-aminophenol and terephthalaldehyde. Comprehensive characterization performed FT-IR, XRD, SEM, VSM analyses, revealing less crystalline arrangement compared to pure chitosan, rough non-uniform surface morphology, reduced magnetization value 30 emu/g. Furthermore, working as an adsorbent for effective disposal Zn(II) from aqueous solutions. exhibited maximum sorption capacity 289.86 mg/g ions. Additionally, results indicated that spontaneous, chemical, endothermic process, aligning well Langmuir isotherm pseudo-second-order model. at pH 7.5, contact duration 100 min temperature 328 K, fabricated reached its study demonstrate effectiveness newly removing media. synthesis approach high adsorption underscore potential composite practical applications industrial wastewater treatment. dual mechanism involving electrostatic attraction complexation processes further enhances utility, making it valuable contribution field environmental remediation.

Язык: Английский

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The adsorption behavior and mechanism of Cu(Ⅱ), Fe(Ⅱ) and Co(Ⅱ) on straw biochar and their Fenton-like performance for ciprofloxacin decontamination

Journal of Environmental Management, Год журнала: 2025, Номер 373, С. 123962 - 123962

Опубликована: Янв. 1, 2025

Язык: Английский

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Synthesis and characterization of allyl mannitol cross-linker based novel hydrogel for capturing of toxic metal ions from aqueous solution

Separation Science and Technology, Год журнала: 2024, Номер unknown, С. 1 - 20

Опубликована: Окт. 9, 2024

Three grades of allyl-mannitol cross-linker-based hydrogel (AMCLHs hydrogel) have been synthesized with the help acrylic acid and acrylamide monomers using a free radical co-polymerization technique. The three prepared AMCLHs referred to as AMCLHs-1, AMCLHs-2, AMCLHs-3, respectively. hydrogels characterized by several analytical techniques viz. Fourier transform infrared (FTIR) spectroscopy, thermogravimetric (TG) analysis, point zero charge (ΔpHPZC), scanning electron microscope (SEM) utilized for elimination Cu2+ Co2+ ions from wastewater. properties hydrogels, i.e. swelling water retention ratio studied in distilled under optimized conditions. maximum best grade (AMCLHs-1) has found be 400.5 g/g 75.09% during 24 h. These findings indicate AMCLHs-1 remarkable capacity. metal ion removal efficiency aqueous solutions 96.6% 94.2% optimum experimental data fitted well Langmuir Freundlich adsorption models, revealing capacities 431.03 mg/g 414.93 ions, In addition, rate onto follows both Pseudo first second-order kinetic models. negative ΔG values that process occurs spontaneously, while positive ΔH suggest is exothermic nature. reusable exhibits high desorption 87.63% 85.21% even after fourth cycle. Overall, cost-effective adsorbent possesses significant potential heavy solutions.

Язык: Английский

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A Deterministic Mechanism for Efficient Removal of Arsenic and Lead from Wastewater Using Rapidly Synthesized TiO2-(α-Fe2O3) Nanoshells

Journal of Molecular Liquids, Год журнала: 2024, Номер 413, С. 125958 - 125958

Опубликована: Сен. 10, 2024

Язык: Английский

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A comparative study on the water treatment effects of different advanced oxidation technologies in a water treatment system based on double-sided photovoltaic-thermoelectric generators

Renewable Energy, Год журнала: 2025, Номер unknown, С. 122412 - 122412

Опубликована: Янв. 1, 2025

Язык: Английский

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PAN/β-CD/MnO2 composite fibers for highly efficient adsorption of heavy metals and absorption of electromagnetic waves

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 132070 - 132070

Опубликована: Фев. 1, 2025

Язык: Английский

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Synthesis of nitrogen-purged biochar and modification with hydrothermal activation: comparative assessment as adsorbents for effective elimination of Pb(II) and Cd(II) from wastewater

Deleted Journal, Год журнала: 2025, Номер 7(2)

Опубликована: Фев. 15, 2025

For sustainable development, wastewater treatment and recycling are inevitable; using adsorbents to treat is widely accepted. This article aimed synthesize (novel biochars) from agricultural wastes investigate the adsorption behaviours of Pb(II) Cd(II) on novel biochars. Nitrogen purged biochar (NPBC) was synthesized by pyrolysis with nitrogen purgation wheat straw; whereas, steam activated (SABC) pyrolysis-cum-hydrothermal (steam) activation. Synthesized NPBC SABC were characterized physical, chemical, XRD, FTIR, SEM–EDX methods. more porous amorphous in nature higher specific surface area (SSA), but consisted relatively less polar functional groups than that NPBC. The external layer both negatively charged (pH > pHPZC). Results revealed exhibited 97% 80% recovery efficiency Cd(II), respectively, while demonstrated removal efficiencies 87.6% 69.4%, at initial concentrations 50 5 mg L−1. Adsorption upon occurred spontaneously, also exothermically, decreased increased reaction temperature. maximum capacities (qmax) for 452.13 1117 g−1, whereas those 314.9 470.43 according Langmuir isotherm approach (R2 0.989). So, performed better removing metals wastewater. Both exhibit substantial prospects regeneration consequent adsorbent recovery. Hence, designed can be very effective towards cationic toxic heavy metal

Язык: Английский

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Effective enhancement of copper selective removal from sodium alginate-based gel adsorbent by dual construction of slit-shaped structure and internal channel

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 141274 - 141274

Опубликована: Фев. 1, 2025

Язык: Английский

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