Multifunctional Ag/MoO3 hybrid nanofiller-enabled PVA/CMC nanocomposite films: complementary enhancement of structural, optical, electrical, dielectric, and antibacterial properties
7 affiliations
- 1Department of Physics, Faculty of Science, Mansoura University Mansoura Egypt
- 2Department of Chemistry, “Giacomo Ciamician” University of Bologna 40126 Bologna BO Italy
- 3Kocaeli University, Faculty of Arts & Sciences, Department of Chemistry 41001 Umuttepe-Kocaeli Turkey
- 4Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Department of Optical Science and Engineering, Fudan University Shanghai 200433 China
- 5Department of Pharmaceutics, College of Pharmacy, King Saud University Riyadh 11495 Saudi Arabia
- 6Department of Physics and Astronomy, College of Science, King Saud University Riyadh-11451 Saudi Arabia
- 7Department of Biochemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
Abstract
In this study, Ag/MoO3 hybrid nanofiller-modified PVA/CMC nanocomposite films were prepared using a solution-casting method. The effect of addition of Ag/MoO3 on the functional properties of PVA/CMC matrix has been systematically studied emphasising the role of hybrid nanofillers in enhancing material properties. Structural analyses confirmed the successful integration of crystalline Ag and MoO3 phases within the polymer network, while FTIR results revealed evidence of possible polymer–nanofiller interactions. UV-visible analysis indicated that the optical absorption was enhanced and the optical band-gap energy was decreased due to the formation of localised electronic states and the enhanced interfacial charge-transfer. The electrical studies showed an increase in AC conductivity with increasing concentration of Ag and the 4 wt% Ag/MoO3 nanocomposite showed the best charge transport behaviour. The dielectric and impedance analyses showed increased interfacial polarization, reduced bulk resistance, and non-Debye relaxation behaviour associated with heterogeneous Ag/MoO3–polymer interfaces. Furthermore, the antibacterial activity was evaluated against Staphylococcus spp. and Klebsiella pneumoniae, where the nanocomposite films exhibited concentration-dependent bacterial inhibition. The highest antibacterial activity against Staphylococcus spp. and Klebsiella pneumoniae was exhibited by the PVA/CMC composite containing 4 wt% Ag/MoO3, indicating the effective antimicrobial contribution of the hybrid nanofiller. The obtained results demonstrate that Ag/MoO3-modified PVA/CMC nanocomposites possess multifunctional optical, electrical, dielectric, and antibacterial characteristics, indicating potential for future applications in dielectric components, antimicrobial coatings, and polymer-based functional materials.
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BibTeX
@article{asnag2026multifunctional,
title = {{Multifunctional Ag/MoO3 hybrid nanofiller-enabled PVA/CMC nanocomposite films: complementary enhancement of structural, optical, electrical, dielectric, and antibacterial properties}},
author = {G. M. Asnag and Mohammed ALSaeedy and Ramzan Ullah and Mohamed M. Badran and Aziz A. Aziz and Syed Mansoor Ali and Mansour K. Gatasheh and ZabnAllah M. Alaizeri},
journal = {RSC Advances},
year = {2026},
month = oct,
doi = {10.1039/d6ra09276d},
url = {https://doi.org/10.1039/d6ra09276d},
note = {CC BY 3.0},
}
RIS
TY - JOUR
TI - Multifunctional Ag/MoO3 hybrid nanofiller-enabled PVA/CMC nanocomposite films: complementary enhancement of structural, optical, electrical, dielectric, and antibacterial properties
AU - G. M. Asnag
AU - Mohammed ALSaeedy
AU - Ramzan Ullah
AU - Mohamed M. Badran
AU - Aziz A. Aziz
AU - Syed Mansoor Ali
AU - Mansour K. Gatasheh
AU - ZabnAllah M. Alaizeri
PY - 2026
DA - 2026/10/26
JO - RSC Advances
DO - 10.1039/d6ra09276d
UR - https://doi.org/10.1039/d6ra09276d
AB - In this study, Ag/MoO3 hybrid nanofiller-modified PVA/CMC nanocomposite films were prepared using a solution-casting method. The effect of addition of Ag/MoO3 on the functional properties of PVA/CMC matrix has been systematically studied emphasising the role of hybrid nanofillers in enhancing material properties. Structural analyses confirmed the successful integration of crystalline Ag and MoO3 phases within the polymer network, while FTIR results revealed evidence of possible polymer–nanofiller interactions. UV-visible analysis indicated that the optical absorption was enhanced and the optical band-gap energy was decreased due to the formation of localised electronic states and the enhanced interfacial charge-transfer. The electrical studies showed an increase in AC conductivity with increasing concentration of Ag and the 4 wt% Ag/MoO3 nanocomposite showed the best charge transport behaviour. The dielectric and impedance analyses showed increased interfacial polarization, reduced bulk resistance, and non-Debye relaxation behaviour associated with heterogeneous Ag/MoO3–polymer interfaces. Furthermore, the antibacterial activity was evaluated against Staphylococcus spp. and Klebsiella pneumoniae, where the nanocomposite films exhibited concentration-dependent bacterial inhibition. The highest antibacterial activity against Staphylococcus spp. and Klebsiella pneumoniae was exhibited by the PVA/CMC composite containing 4 wt% Ag/MoO3, indicating the effective antimicrobial contribution of the hybrid nanofiller. The obtained results demonstrate that Ag/MoO3-modified PVA/CMC nanocomposites possess multifunctional optical, electrical, dielectric, and antibacterial characteristics, indicating potential for future applications in dielectric components, antimicrobial coatings, and polymer-based functional materials.
SN - 2046-2069
ER -