الفهرس 
IntroductionOnly 14 pages are availabe for public view
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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.