Enhancing Dielectric, Ferroelectric and Antibacterial Properties of Siloxene Nanosheets by Wet Chemical Deposition of Flower-like Spherical ZnO Nanosheets

The incorporation of metal oxides onto two-dimensional layered siloxene has emerged as an efficient method to expand possible applications in various fields. However, the interfacial polarization occurring in siloxene nanosheets (SiNSs) and their combination with a metal oxide remains unexplored. In this study, flower-like spherical zinc oxide (ZnO) was successfully deposited onto SiNSs through a straightforward wet chemical precipitation method. Electron microscopy analysis revealed well-crystallized ZnO deposition with an average particle size of 100 nm. Dielectric measurements showcased the remarkable stability of interfacial polarization in ZnO-doped SiNSs (SiNSs@ZnO) across a wide frequency range, along with low electrical dissipation values below 0.1 in the frequency range of 100 Hz-1 MHz. On the other hand, the ferroelectric study of SiNSs@ZnO demonstrated a slim hysteresis loop with a maximum polarization of 0.0554 & mu;C/cm2 and a remnant polarization of 0.00778 & mu;C/cm2. The newly synthesized nanocomposite exhibited a stored energy of 827.51 mJ.cm-3 and a dissipated energy of 343.63 mJ.cm-3, resulting in an energy efficiency of 70.65%. Furthermore, the antibacterial activity of SiNSs@ZnO revealed stronger inhibition compared to SiNSs against both gram-positive and gram-negative bacteria. This study emphasizes that modifying siloxene layers through the deposition of nanostructured transition metal oxide materials leads to stabilized interfacial polarization, efficient energy storage, and effective bacterial inhibition.

Journal

SILICON

Year

2024

Volume

16

Issue

1

Pages

189-202

ISSN

1876-990X

eISSN

1876-9918

DOI

10.1007/s12633-023-02664-4

WoS UID

WOS:001066751800002