Опубликована: Июль 12, 2024
Язык: Английский
Опубликована: Июль 12, 2024
Язык: Английский
Journal of Polymers and the Environment, Год журнала: 2025, Номер unknown
Опубликована: Май 29, 2025
Язык: Английский
Процитировано
0Processes, Год журнала: 2025, Номер 13(6), С. 1714 - 1714
Опубликована: Май 30, 2025
The widespread industrial use of chromium has exacerbated water contamination issues globally. In this study, a nitrogen-doped wheat straw biochar loaded with nanoscale zero-valent iron composite (nZVI/N-KBC) was synthesized via liquid-phase reduction method, and its adsorption properties for hexavalent (Cr(VI)) in aqueous solutions were systematically investigated. material characterized using SEM, XRD, Raman spectroscopy, FTIR, XPS. Experimental results demonstrated that under optimal conditions (pH 2, 0.05 g adsorbent dosage, 50 mg/L initial Cr(VI) concentration), the capacity reached 41.29 mg/g. Isothermal analysis revealed process followed Langmuir model, indicating monolayer maximum 100.9 Kinetic studies show conforms to pseudo-second-order kinetic thermodynamic XPS analyses jointly prove chemical is dominant. Thermodynamic confirmed endothermic entropy-driven nature adsorption. Mechanistic FTIR dual mechanism: (1) partial onto nZVI/N-KBC surface, (2) predominant Cr(III) mediated by Fe0 Fe2+. This study highlights synergistic role nitrogen doping nZVI loading enhancing removal, offering promising approach remediating chromium-contaminated water.
Язык: Английский
Процитировано
0Journal of Industrial and Engineering Chemistry, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
2Biomass Conversion and Biorefinery, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 27, 2024
Язык: Английский
Процитировано
1International Journal of Biological Macromolecules, Год журнала: 2024, Номер 278, С. 134876 - 134876
Опубликована: Авг. 22, 2024
Язык: Английский
Процитировано
1Опубликована: Июль 12, 2024
Язык: Английский
Процитировано
0