Bimetallic Zinc-Iron-Modified Sugarcane Bagasse Biochar for Simultaneous Adsorption of Arsenic and Oxytetracycline from Wastewater

Molecules, Journal Year: 2025, Volume and Issue: 30(3), P. 572 - 572

Published: Jan. 27, 2025

Arsenic (As), a highly toxic and carcinogenic heavy metal, poses significant risks to soil water quality, while oxytetracycline (OTC), widely used antibiotic, contributes environmental pollution due excessive human usage. Addressing the coexistence of multiple pollutants in environment, this study investigates simultaneous adsorption As(III) OTC using novel bimetallic zinc-iron-modified biochar (1Zn-1Fe-1SBC). The developed adsorbent demonstrates enhanced recovery, improved efficiency, cost-effective operation. Characterization results revealed high carbon-to-hydrogen ratio (C/H) specific surface area 1137 m2 g−1 for 1Zn-1Fe-1SBC. Isotherm modeling indicated maximum capacities 34.7 mg 172.4 OTC. Thermodynamic analysis confirmed that processes both were spontaneous (ΔG < 0), endothermic (ΔH > driven by chemical 80 kJ mol−1), with increased system disorder (ΔS 0). mechanisms involved interactions, including pore filling, hydrogen bonding, electrostatic attraction, complexation, π-π interactions. These findings underscore potential 1Zn-1Fe-1SBC as promising remediation wastewater containing coexisting pollutants.

Language: Английский

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Removal of tetracycline from aqueous solution by magnetic biochar modified with different iron valence and K2C2O4: a comparative study and mechanism

Journal of Analytical and Applied Pyrolysis, Journal Year: 2025, Volume and Issue: 187, P. 107005 - 107005

Published: Feb. 5, 2025

Language: Английский

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Adsorption characteristics and mechanism insights of K2FeO4 coupling with ZnCl2-assisted modified functionalized biochar for Pb (II) in wastewater

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 115279 - 115279

Published: Dec. 1, 2024

Language: Английский

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Bimetallic Fe-Mo modified N-doped carbon materials activating peroxymonosulfate for acetaminophen degradation: Synergistic effects of free radicals and electron transfer process

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121013 - 121013

Published: Jan. 1, 2025

Language: Английский

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

Biochar, Journal Year: 2025, Volume and Issue: 7(1)

Published: Feb. 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

Language: Английский

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Enhancing capacitive performance through solvent-coupled two-step carbonization of cotton stalk biochar with tunable melamine doping: Deciphering the redox activity of pyrrolic nitrogen

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 106, P. 1480 - 1490

Published: Feb. 11, 2025

Language: Английский

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Efficient removal of lead ion from aqueous solution by β-Cyclodextrin modified magnetic sludge biochar

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Language: Английский

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Engineered synthesis of Fe-Mn bimetallic anchored hierarchical bamboo-derived activated carbon: Dual-functional platform for ultrahigh-capacity phenol adsorption and high-energy supercapacitors

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162439 - 162439

Published: April 1, 2025

Language: Английский

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Electronic differences based on fluoroquinolone and piperazine groups: Preparation of copper-manganese doped biochar to optimize adsorption patterns and selective recognition of ciprofloxacin

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133068 - 133068

Published: April 1, 2025

Language: Английский

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Competitive and synergistic effects of biochar modified with phosphoric acid and manganese oxide on the removal of Cd and Congo red from wastewater

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 69, P. 106675 - 106675

Published: Nov. 29, 2024

Language: Английский

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