Preparation of Cellulose-Grafted Acrylic Acid Stabilized Jujube Branch Biochar-Supported Nano Zero-Valent Iron Composite for Cr(VI) Removal from Water

Nanomaterials, Год журнала: 2025, Номер 15(6), С. 441 - 441

Опубликована: Март 14, 2025

A stabilized biochar (BC)–nano-scale zero-valent iron (nZVI) composite (BC-nZVI@Cell-g-PAA) was prepared using cellulose-grafted polyacrylic acid (Cell-g-PAA) as the raw material through in situ polymerization and liquid-phase reduction methods for remediation of hexavalent chromium (Cr(VI))-contaminated water. BC-nZVI@Cell-g-PAA characterized by XRD, FT-IR, SEM, BET, TEM, XPS. According to batch experiments, under optimized conditions (Cr(VI) concentration 50 mg/L, pH = 3, dosage 2 g/L), achieved maximum Cr(VI) removal efficiency (99.69%) within 120 min. Notably, BC, a carrier, high dispersion nZVI its porous structure, effectively preventing particle agglomeration improving reaction activity. Simultaneously, functional groups on surface Cell-g-PAA provided excellent protection nZVI, significantly suppressing oxidative deactivation. Furthermore, reduced insoluble trivalent chromium(Cr(III)) species them immobilization. The synergistic effects physical adsorption chemical greatly contributed Cr(VI). Remarkably, exhibited reusability with 62.4% after five cycles, demonstrating potential promising remediating Cr(VI)-contaminated In conclusion, not only demonstrated remarkable but also showcased practical applications environmental remediation, evidenced sustained performance over multiple reuse cycles. Moreover, Cr(VI), toxic carcinogenic substance, poses significant risks aquatic ecosystems human health, underscoring importance developing effective from contaminated

Язык: Английский

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Efficient co-removal of aqueous Cr(Ⅵ) and ciprofloxacin by alkali lignin-derived carbon supported nanoscale zero-valent iron via adsorption and redox synergistic mechanisms

Separation and Purification Technology, Год журнала: 2024, Номер 354, С. 129402 - 129402

Опубликована: Авг. 30, 2024

Язык: Английский

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Hybrid synthesis of Carboxymethylated-Lignin-Tetra ethoxysilane nanocomposite for adsorption of hexavalent chromium

Separation and Purification Technology, Год журнала: 2024, Номер unknown, С. 130861 - 130861

Опубликована: Дек. 1, 2024

Язык: Английский

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Kinetic insights into the relationships between anaerobic corrosion and decontamination of nanoscale zerovalent iron improved by sulfidation

Chemical Engineering Journal, Год журнала: 2024, Номер 501, С. 157638 - 157638

Опубликована: Ноя. 14, 2024

Язык: Английский

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