Metal–Organic Framework (MOF)-Embedded Magnetic Polysaccharide Hydrogel Beads as Efficient Adsorbents for Malachite Green Removal

Molecules, Год журнала: 2025, Номер 30(7), С. 1560 - 1560

Опубликована: Март 31, 2025

Sodium alginate is a polysaccharide compound extracted from natural plants that has been successfully prepared as hydrogel for adsorbing and removing pollutants. However, the selectivity of alginate-based hydrogels to malachite green (MG) dyes stability in air cannot meet requirements. Herein, metal–organic frameworks (MOFs) are embedded into magnetic create MOF (MMOF hydrogel) microspheres with high adsorption capacity. The morphology physical properties MMOF were characterized by scanning electron microscopy optical microscopy. Under optimized conditions, rate MG reached 96.5%. maximum capacity was determined be 315 mg·g−1. This highly efficient adsorbent dye removal considerable potential rapidly toxic contaminants aquatic food matrices high-throughput sampling pretreatment, which rapid, green, large-scale environmental remediation future.

Язык: Английский

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Carboxyethyl chitosan/oxidized sodium alginate composite hydrogel loaded with AgNPs and Zn2+: dye adsorption and antibacterial function

International Journal of Biological Macromolecules, Год журнала: 2025, Номер 309, С. 143124 - 143124

Опубликована: Апрель 12, 2025

Язык: Английский

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Preparing Macro-Mesoporous Membranes Based on Carbon-Nanotube-Supported “Rattan-Like” Amyloid Protein Nanofibers for High-Performance Removal of Congo Red

Industrial & Engineering Chemistry Research, Год журнала: 2024, Номер 63(43), С. 18655 - 18666

Опубликована: Окт. 18, 2024

Herein, a unique "rattan-like" three-dimensional porous fiber membrane is fabricated by integrating carbon nanotubes (CNTs) into amyloid bovine serum albumin fibers (ABFs). Specifically, the CNTs are embedded as an inner interpenetrating framework to organize thoroughly connected macro-mesoporous architecture. The distinctive reticular microstructure instrumental in minimizing hydraulic resistance, maximizing availability of adsorption sites, and enhancing dye mass transfer. Comprehensive physical characterizations have been conducted, revealing highly structures (55.3 m2/g) multimodal pore size distribution with average diameter 41.8 nm, both beneficial for adsorption. As expected, ABF/CNT exhibits extraordinary capacity 682.9 mg/g Congo red, rapid kinetics (90% its equilibrium within 150 min), good reusability that dropped 24.7% efficiency even after 15 cycles. Furthermore, introduction staggered macropores has significantly enhanced transfer factor ([kLa]d), which turn improved global ([kLa]g). simple fabrication efficient performance make it capable alleviating CR contamination problems biological adsorbent.

Язык: Английский

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Adsorption of amoxicillin by chitosan and alginate biopolymers composite beads

Environmental Science and Pollution Research, Год журнала: 2024, Номер 31(54), С. 62930 - 62949

Опубликована: Окт. 28, 2024

Язык: Английский

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Modular hydrogel selectively adsorbs phosphates and hexavalent chromium while enabling phosphate recovery

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 680, С. 373 - 386

Опубликована: Ноя. 3, 2024

Язык: Английский

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Flourescent Reponsive Film Based on Nitrogen-Doped Carbon Quantum Dots Embedded in Mesoporous Silica for Visual Detection of Cr(Vi)

Опубликована: Янв. 1, 2024

Язык: Английский

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Reaction mechanism study of calcium carbide residue with graphene oxide in aqueous environment: Adsorption properties and mechanical potentials

Arabian Journal of Chemistry, Год журнала: 2024, Номер 17(12), С. 106038 - 106038

Опубликована: Окт. 31, 2024

Язык: Английский

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