الفهرس | Only 14 pages are availabe for public view |
Abstract This comprehensive study explores the multifaceted application of metalincorporated cellulose (CS) or chitosan (CH) nanocomposites for the efficient removal of antibiotics from water sources. The results of the antibiotics (Ciprofloxacin (CIP), Doxycycline (DOX), Gatifloxacin (GAT), and Ampicillin (AMP)) adsorption study using various DFNT cellulose-based particles demonstrate that Cu/Fe2O4@cellulose (Cu/CS) and Mn/Fe2O4@cellulose (Mn/CS) are promising candidates for these antibiotics removal from water. While Cu/CS exhibited the highest removal efficiency among all the DFNT materials, Mn/CS showed the most significant adsorption rate for these antibiotics. Synthesized materials—ZnFe2O4@chitosan (Zn/CH), CuFe2O4@chitosan (Cu/CH), and MnFe2O4@chitosan (Mn/CH) demonstrated exceptional photocatalytic degradation and adsorption capabilities against CIP, AMP, and ERY. Under visible light, Zn/CH exhibited outstanding efficiency, degrading CIP, AMP, and ERY by 99.8%, 94.5%, and 83.2%, respectively. Reusability and stability were demonstrated over 15 cycles, with regeneration capacities exceeding 90%, highlighting economic viability for water treatment.Cu/CH and Mn/CH displayed robust photocatalytic activities, boasting degradation efficiencies of 94.6% and 98.1%, respectively, for CIP. Both nanocomposites exhibited excellent reusability over 15 cycles, emphasizing stability and economic feasibility for water purification. The study extended its application to a pilot water treatment device, incorporating Cu/CS and Mn/CS adsorbents for the removal of CIP, GAT, and AMP. Cu/CS achieved 100% removal of AMP within 30 minutes and demonstrated an overall removal ratio of 67% for mixed antibiotics. In conclusion, this study not only provides a comprehensive understanding of the efficiency, mechanisms, and reusability of metal-incorporated chitosan nanocomposites for antibiotic removal, but also explores their potential in adsorption studies using cellulose ferrite-based materials. These findings contribute significantly to the development of sustainable and effective strategies for mitigating antibiotic contamination in aquatic environments. Future research should focus on expanding the scope to include additional antibiotics, optimizing nanocomposite compositions, and conducting scale-up studies to validate and advance these innovative water treatment approaches. |