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AuthorNabhan, Fatma
AuthorFayyad, Eman M.
AuthorSliem, Mostafa H.
AuthorShurrab, Farah M.
AuthorEid, Kamel
AuthorNasrallah, Gheyath
AuthorAbdullah, Aboubakr M.
Available date2023-09-27T05:52:42Z
Publication Date2023-06-27
Publication NameACS Omega
Identifierhttp://dx.doi.org/10.1021/acsomega.2c07288
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85163496482&origin=inward
URIhttp://hdl.handle.net/10576/47985
AbstractA carbon nitride (C3N4) nanomaterial has superior mechanical, thermal, and tribological properties, which make them attractive for various applications, including corrosion-resistant coatings. In this research, newly synthesized C3N4 nanocapsules with different concentrations (0.5, 1.0, and 2.0 wt %) of ZnO as a dopant were incorporated into the NiP coating using an electroless deposition technique. The nanocomposite coatings either ZnO-doped (NiP-C3N4/ZnO) or undoped (NiP-C3N4) were heat-treated at 400 °C for 1 h. The as-plated and heat-treated (HT) nanocomposite coatings were characterized by their morphology, phases, roughness, wettability, hardness, corrosion protection, and antibacterial properties. The results indicated that the microhardness of as-plated and heat-treated nanocomposite coatings was significantly improved after the incorporation of 0.5 wt % ZnO-doped C3N4 nanocapsules. The outcomes of electrochemical studies revealed that the corrosion resistance of the HT coatings is higher than the corresponding as-plated ones. The highest corrosion resistance is achieved on the heat-treated NiP-C3N4/1.0 wt % ZnO coatings. Although the presence of ZnO in the C3N4 nanocapsules increased its surface area and porosity, the C3N4/ZnO nanocapsules prevented localized corrosion by filling the microdefects and pores of the NiP matrix. Furthermore, the colony-counting method used to evaluate the antibacterial behavior of the different coatings demonstrated superior antibacterial properties, namely, after heat treatment. Therefore, the novel perspective C3N4/ZnO nanocapsules can be utilized as a reinforcement nanomaterial in improving the mechanical and anticorrosion performance of NiP coatings in chloride media, together with providing superior antibacterial properties.
SponsorThis publication was made possible by NPRP Grant 13S-0117-200095 from the Qatar National Research Fund (QNRF) (a member of the Qatar Foundation). Statements made herein are solely the responsibility of the authors. This work also was supported by Qatar University through High Impact Grant, QUHI-CAM-22/23-550. The authors would like to acknowledge the Central Laboratory Unit (CLU) efforts, Qatar University, for SEM, EDX, TEM analyses, and elemental mapping. The authors also thank the Biomedical Research Center (BRC) at Qatar University for conducting the antibacterial analysis. The publication of this article was funded by Qatar National Library.
Languageen
PublisherAmerican Chemical Society
SubjectCoating materials
Heat treatment
Nanocapsules
Nanocomposites
Oxides
TitleZnO-Doped gC3N4 Nanocapsules for Enhancing the Performance of Electroless NiP Coating─Mechanical, Corrosion Protection, and Antibacterial Properties
TypeArticle
Pagination22361-22381
Issue Number25
Volume Number8
ESSN2470-1343
dc.accessType Open Access


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