Enhanced Charge Separation and Visible-Light Harvesting in Bi2MoO6 via Nitrogen-Doped Carbon Quantum Dots for Improved Antibiotic Degradation

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 136409 - 136409

Опубликована: Фев. 1, 2025

Язык: Английский

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Pharmaceuticals removal from aqueous solution by water hyacinth (Eichhornia crassipes): a comprehensive investigation of kinetics, equilibrium, and thermodynamics

Environmental Science and Pollution Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

Язык: Английский

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Dissolved Oxygen Changes in Wastewater During Sulfamethoxazole Degradation by Photo-Fenton Treatment

Sustainability, Год журнала: 2025, Номер 17(8), С. 3333 - 3333

Опубликована: Апрель 9, 2025

This study examines the degradation of sulfamethoxazole (SMX) in water using photo-Fenton process, focusing on dissolved oxygen (DO) dynamics, organic matter mineralization, and quality improvement. The results show that SMX follows a rapid kinetic pattern, achieving complete removal within 30 min. However, total carbon reduction occurs more gradually, indicating persistence intermediates before full mineralization into CO2 H2O. DO evolution biphasic trend: an initial decline due to oxidative consumption, followed by increase H2O2 decomposition O2. Initially, at [H2O2]0 ≥ 3.0 mM, sharply increases, while [Fe(II)]0 = 5.0 mg/L, reaches minimum 0.3 mg/L higher reactive species (ROS) production. Water parameters such as color, turbidity, aromaticity were also monitored. Aromaticity significantly decreases min, confirming ring cleavage. Color turbidity initially intensify intermediate formation but later decrease progresses. Optimal conditions (1 mol SMX: 10 H2O2: 0.05 Fe(II)) ensure efficient with minimal depletion without excessive scavenging effects. These findings confirm process effectively removes improving quality, making it sustainable alternative for pharmaceutical wastewater treatment.

Язык: Английский

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Cysteine-Functionalized Magnetic Manganese-Based MOF Composite for Enhanced Removal of Pb²⁺ from Water

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Among the multitude of toxic water pollutants, Pb2+ poses a significant threat to human health. A novel magnetic manganese-based metal-organic framework (Mn-MOF) composite, MFCys, was designed for selective removal Pb2+. MFCys readily synthesized through postsynthetic modification Mn-MOF/Fe3O4 (MF) with l-cysteine (l-Cys), utilizing prospective Mn-MOF, {[Mn2(tzpa)(OH)(H2O)2]·DMA}n. demonstrated superior adsorption Pb2+, reaching equilibrium within 2 h compared Mn-MOF and MF. The Langmuir model indicated that underwent chemisorption Meanwhile, process aligned pseudo-second-order (PSO) kinetic model, confirming adsorbed by mainly monolayer chemisorption. Thermodynamic results revealed spontaneous endothermic. Moreover, even in presence competing Cd2+, Zn2+, Ca2+, Mg2+, Na+, K+, exhibited exceptional selectivity due electrostatic interaction electronic coupling effect between enabled easy separation from suspension 1 min using an external magnet recycling. retained 98.0% initial capacity after five cycles, demonstrating excellent reusability. Notably, displayed simulated lead-acid battery wastewater, retaining 98.3% its pristine cycles. These findings suggest easily separated composite has promising application prospects wastewater treatment.

Язык: Английский

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Functionalized biochar for enhancing the removal of antibiotics and resistance genes in swine manure composting: A review

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116752 - 116752

Опубликована: Апрель 1, 2025

Язык: Английский

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Innovative approaches in adsorbent production through pyrolysis of waste biomass: Effective parameters, modifications, and techno‐economic analysis

The Canadian Journal of Chemical Engineering, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Abstract The growing demand for sustainable waste management solutions and protection of natural resources from pollution has increased interest in effective adsorbents. This study explores recent advancements producing biochar activated carbon derived various biomass, including novel pyrolysis methods, such as microwave, flash, vacuum pyrolysis. Moreover, innovative upgrading processes, ultrasound, electrochemical, plasma modification, were assessed. article also examines the role chemical physical modification developing optimal pore structures surface characteristics that improve pollutant removal efficiency. Key parameters influence effectiveness analyzed, temperature, heating rate, residence time, reactor type. Furthermore, a techno‐economic analysis is presented, investigating feasibility cost‐effectiveness production. comprehensive overview serves foundation future research to advance field biomass‐derived adsorbents, with potential implications control resource recovery.

Язык: Английский

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Biochar Composite with Enhanced Performance Prepared Through Microbial Modification for Water Pollutant Removal

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(21), С. 11732 - 11732

Опубликована: Окт. 31, 2024

This study developed mycelial biochar composites, BQH-AN and BQH-MV, with stable physicochemical properties significantly improved adsorption capabilities through microbial modification. The results showed that the specific surface area porosity of (3547.47 m

Язык: Английский

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Synthesis of porous carbon xerogel adsorbents with tailored hierarchical porosity and morphology for the selective removal of sulfamethoxazole from water

Environmental Science and Pollution Research, Год журнала: 2024, Номер 31(59), С. 67105 - 67120

Опубликована: Дек. 10, 2024

Язык: Английский

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