High-capacity adsorption of organic dyes using separable pullulan gel encapsulated with PDA-modified ZIF-8

Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 345, P. 122562 - 122562

Published: July 31, 2024

Language: Английский

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Highly efficient unsymmetrical dimethylhydrazine adsorption using alginate microspheres encapsulated with ZIF-67-derived carbons

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159378 - 159378

Published: Jan. 1, 2025

Language: Английский

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Adsorptive nanofibrous membranes for bidirectional removal of cationic and anionic dyes

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131515 - 131515

Published: Jan. 1, 2025

Language: Английский

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A facile route to polyethyleneimine functionalized polyethersulfone membranes for drinking water softening and removal of diverse pollutants

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: 361, P. 131487 - 131487

Published: Jan. 10, 2025

Language: Английский

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New insights in the low-temperature-dependent formation of amorphous titania-coated magnetic polydopamine nanocomposites for the adsorption of methylene blue

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 9, 2025

Removal of accumulated dyes from the environment water bodies is essential to prevent further harm humans. The development and design new alternative nanoadsorbents that can conveniently, quickly, efficiently improve adsorption removal efficiency wastewater remains a huge challenge. An amorphous TiO2 with magnetic core-shell-shell structure (Fe3O4@PDA@a-TiO2, denoted as FPaT) was constructed through series steps. studies on formation mechanism FPaT indicated reaction temperature most important parameter affecting crystal structure. To analyze properties core, shell, surface (size morphology, elemental composition, functional groups, structure, properties, etc.) FPaT, various analytical techniques including scanning electronic microscopy (SEM), transmission electron (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) vibrating sample magnetometer (VSM) were utilized characterize it. Based unique physicochemical its surface, applied highly adsorb methylene blue (MB) simulated wastewater. Furthermore, batch experiments towards MB performed assess high ability reusability prepared FPaT. Using 4.5 mg solution an initial concentration 10 mg/L (pH = 8.2), 97% rate achieved within 30 min. Compared previously reported values other absorbent materials, maximum capacity (313.7 mg/g) much higher. equilibrium adsorptions kinetic data better depicted by Langmuir isothermal model (R2 0.943) second-order 0.999), respectively. In conclusion, this work indicates novel adsorbent, has good application prospects for removing actual dye

Language: Английский

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In Situ Anchored, Ultrasmall, Oxygen Vacancy-Rich TiO2−x on Carbonized Bacterial Cellulose for the Efficient Adsorption and Separation of Organic Pollutants

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(7), P. 514 - 514

Published: March 28, 2025

Superior selective adsorption of organic dye is still a big challenge in the process wastewater treatment. Meanwhile, low-price and environmentally friendly biomass-based adsorbents show huge potential fields separation purification. In this study, we adopted “hydrolysis–calcination method” to develop novel situ anchoring strategy for ultrasmall TiO2−x on carbonized bacterial cellulose (CBC), which was derived from natural cellulose. Notably, 3D networks porous CBC played dual role both providing hydrolytic sites controlling oxygen vacancies (Vo) TiO2−x. As single-dye adsorption, TiO2−x/CBC had strong ability (101.4 mg/g) removing methylene blue (MB), much higher than that methyl orange (MO), malachite green (MG), rhodamine B (RhB), tetracyclines (TC). Moreover, under optimized carbonization temperature (Tc) 300 °C, TiO2−x/CBC-300 exhibited an outstanding efficiency 97.07% MB/MO solution. Detailed analysis confirmed Tc key regulator adjusting Vo concentration, directly influenced surface charge density and, further, TiO2−x/CBC. Additionally, used adsorbent could be easily regenerated washing by ethanol. After 4 regenerations, declined only 6.9% after 20 min 13.6% 120 respectively. Ultimately, vacancy-rich TiO2−x/BC system illuminated good prospects mixed separation.

Language: Английский

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Renewable Magnetic NH₂-MIL-101(Fe) for the Efficient Removal of Bisphenol A from Aqueous Solutions

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Bisphenol A (BPA) is extensively utilized as an industrial chemical in the production of certain plastics and epoxy resins. They are frequently found environmental water have potential to cause risks both environment human health. To efficiently remove endocrine disruptor BPA from aqueous solutions, sea urchin-like magnetic material Fe3O4@PDA@NH2-MIL-101 (Fe) was synthesized via hydrothermal methods. has excellent adsorption performance, with a theoretical maximum capacity 300.47 mg/g for BPA. The kinetics by followed pseudo-second-order kinetic model Liu's isotherm model. Magnetic separation experiments reveal high recovery efficiency, maintaining 94.82% its initial after five cycles. primary mechanisms on included pore filling, hydrogen bonding, π-π interaction, Lewis acid-base interaction. Additionally, showed removal performance BPA, adsorbed amount 135.27 total organic carbon (TOC) shale gas fracturing flowback fluid. These findings suggest that holds significant adsorbent actual wastewater, offering promising prospects practical applications.

Language: Английский

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Interaction between 6PPD/6PPD-Q and natural Fe-Mn nodules: Performance and mechanism of adsorption and oxidative transformation

Environment International, Journal Year: 2025, Volume and Issue: 198, P. 109438 - 109438

Published: April 1, 2025

Language: Английский

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An integrated extraction platform based on hallysite nanotubes-enhanced PAN@UiO-66 nanofiber membrane for robust separation and sensitive detection of six pesticides from different families

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: 367, P. 132843 - 132843

Published: April 8, 2025

Language: Английский

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Determination of trace bisphenols in milk based on AMA/DVB@GO@UiO-66-NH2 dispersive micro solid-phase extraction coupled with HPLC–UV

Microchimica Acta, Journal Year: 2025, Volume and Issue: 192(5)

Published: May 1, 2025

Language: Английский

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