Metal Oxide/Biochar Hybrid Nanocomposites for Adsorption and Photocatalytic Degradation of Textile Dye Effluents: A Review

Desalination and Water Treatment, Год журнала: 2025, Номер unknown, С. 101004 - 101004

Опубликована: Янв. 1, 2025

Язык: Английский

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Rapid and efficient removal of OG dye from wastewater using polypyrrole-coated zinc cobaltite nanorods: RSM optimization and mechanisms insight

Journal of Industrial and Engineering Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Laccase immobilized on cobalt ferrite magnetic nanoparticles for bioremoval of thymol blue dye

Systems Microbiology and Biomanufacturing, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Язык: Английский

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Efficient recovery of rare metal lanthanum from water by MOF-modified biochar: DFT calculation and dynamic adsorption

Biochar, Год журнала: 2025, Номер 7(1)

Опубликована: Фев. 8, 2025

Abstract In this research, a novel metal-organic framework-modified biochar composite (MIL-88b@BC) was created for the first time by modifying rice husk using excellent adsorption properties of framework (MOF), as well reducing solubility MOF substrate, aiming to improve understanding characteristics rare-earth metal recycling and predict its mechanism. Density functional theory (DFT) computations allowed rationally constructing model. According DFT calculations, primary processes involved in La 3+ were π–π interaction ligand exchange, wherein surface hydroxyl group played crucial role. MIL-88b@BC interacted better with than or did. Accompanying batch tests theoretical conjecture's verification demonstrated that pseudo-second-order model Langmuir model, respectively, provided good fit kinetics isotherms. The maximum capacity MOF@BC (288.89 mg g −1 ) achieved at pH 6.0, which significantly higher adsorbents' previously documented capacities. Confirming estimations, BC@MIL-88b BC. Additionally, can be recycled least four times. To mitigate growing scarcity rare earth elements (REEs) lessen their negative environmental effects, work laid path effectively treating substantial volumes wastewater produced while mining REEs. Highlights adsorbent prepared situ growth method. mechanism innovatively investigated based on calculations. Ligand exchange La–O–Fe formation dominated lanthanide ion removal. Graphical

Язык: Английский

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Effective Co2+ removal from aqueous solution and industrial wastewater using ZIF-7 and MnFe2O4-modified walnut shell biochar composite

Separation and Purification Technology, Год журнала: 2024, Номер 353, С. 128574 - 128574

Опубликована: Июнь 25, 2024

Язык: Английский

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MOF biochar composites for environmental protection and pollution control

Bioresource Technology, Год журнала: 2024, Номер 418, С. 131982 - 131982

Опубликована: Дек. 16, 2024

Язык: Английский

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Non-wood-based biochars as promising and eco-friendly adsorbents for chromium hexavalent Cr (VI) removal from aquatic systems: state-of-the-art, limitations, and potential future directions

Environmental Pollutants and Bioavailability, Год журнала: 2024, Номер 36(1)

Опубликована: Авг. 14, 2024

Chromium exists from both natural geological processes and human actions, it has a substantial impact on health ecosystems. This study addresses the major challenges in using biochar as an environmentally friendly, sustainable, economical sorbent for removing chromium hexavalent throughout remediation process. The results exhibited that produced non-woody feedstocks pyrolyzed at (300°C −700°C) significantly large amount of various functional groups, higher pH (7 to 11.10) CEC (27 21.70 cmol kg−1), greater surface area (2–300 m2g−1), O/C H/C ratios with increasing carbonization temperature, adsorption capacities (1.63 435 mg g) superior performance removal compared biochars woody-biomass. use equilibrium isotherm, thermodynamic, kinetic models aids comprehending interactions between biochar, well their processes.

Язык: Английский

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Optimization-driven modelling of hydrochar derived from fruit waste for adsorption performance evaluation using response surface methodology and machine learning

Journal of Industrial and Engineering Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Июль 1, 2024

Язык: Английский

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Modelling and optimization of nonylphenol biosorption by novel low-cost magnetic Chlorella vulgaris

Emerging contaminants, Год журнала: 2024, Номер 10(3), С. 100310 - 100310

Опубликована: Фев. 15, 2024

Discharging untreated wastewater causes environmental pollution. This research examined the efficiency of removal and adsorption process Emerging Contaminant nonylphenol (NP) using magnetic Chlorella vulgaris (M-Chlorella vulgaris). The characterization M-Chlorella involved XRD, FESEM, EDS-Mapping, BET, FTIR, VSM analyses. impact four different parameters—pH, dose, initial concentration NP, contact time on biosorption was investigated. To model optimize study while minimizing costs number experiments, Response Surface Methodology (RSM) with Central Composite Design (CCD) employed. According to findings, quadratic adjusted R2 = 0.96 best fitted among other models. With pH 3.5, dosage 2.5 g/l, NP 4 mg/l, reaction 70 min, which are optimal parameters, maximum effectiveness about 91%. Langmuir (R2 0.998) pseudo-second-order 0.997) exhibited fits for isotherm kinetic studies, respectively. characteristics were determined facilitate a spontaneous nature, thermodynamic experiments indicated that is exothermic. inexpensiveness availability adsorbent, suitable in pollutant collection from aquatic environment can be mentioned as advantages this process.

Язык: Английский

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Unveiling the adsorption mechanisms and key influencing factors of cyclic acetals on powdered activated carbon

Environmental Technology, Год журнала: 2025, Номер unknown, С. 1 - 11

Опубликована: Март 18, 2025

Cyclic acetals (CAs), such as 2-ethyl-5,5-dimethyl-1,3-dioxane (2-EDD) and 2-ethyl-4-methyl-1,3-dioxolane (2-EMD), are emerging odourants in drinking water, raising significant concerns due to their extremely low odour thresholds, high stability, potential health risks. This study investigated 2-EDD 2-EMD adsorption performance on six powdered activated carbons (PACs). The isotherms fitted well with Freundlich (R2 = 0.907∼0.996) Temkin models 0.874-0.997). efficiency of (the constant KF 0.0847-0.802) was higher than (KF 0.0435-0.239), because its greater molecular mass hydrophobicity. All PACs reached equilibrium about 120 minutes, the kinetics better pseudo-second-order model 0.920∼0.997), indicating that chemical significantly contributed CAs' adsorption. rates for (k2 0.123-1.235) were lower compared 0.245-4.770). Results from correlation analysis revealed average pore size, volume, mesoporous fraction key PAC properties controlling Diffusion-chemisorption model, Weber Morris intraparticle diffusion kinetic Boyd employed elucidate mechanism. results indicated two CAs interacted mainly through adsorption, film serving step rate. exhibited effective under neutral slightly alkaline conditions, source water tap water. Meanwhile, 20 mg·L-1 could reduce concentration 40 ng·L-1 5 ng·L-1. provides a benchmark selecting carbon address issues caused by CAs.

Язык: Английский

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