Contact
    Start Publications Effect of Tetrafluorethane and Sulfur Hexafluoride Plasma ...
    ←  Publication Finder
    Attension

    Effect of Tetrafluorethane and Sulfur Hexafluoride Plasma Treatment on Wettability of Boron Nitride Nano-Sheets

    Year: 2019

    Journal: Acta Phys. Pol. A, Volume 136, SEP, page 467–473

    Authors: Liu, H.; Wang, X.; Lan, Z.; Liu, S.

    Organizations: Research Project of Educational Commission of Hubei Province, China [B2017296]; Hubei Natural Science Foundation, China [2018CFC876]

    Boron nitride nanosheets (BNNS) consisting of 2D hexagonal boron nitride nano-layers were deposited, onto silicon substrates, via chemical vapour deposition process at 1000 degrees C. The BNNS were functionalized in argon plasma admixed with sulfur hexafluoride (SF6) or tetrafluorethane (C2H2F4) gases. Scanning electron microscope (SEM), High resolution transmission electron microscope (HRTEM), X-ray photoelectron spectroscopy (XPS), and Water contact angle (WCA) measurements were used to characterize the BNNS before and after plasma modification. Significant changes in the surface features, upon plasma treatments of the BNNS, were noticed during scanning and transmission electron microscopy examinations. The XPS analyses revealed an extensive surface fluorination in the case of Ar/SF 6 plasma, while formation of fluoro-carbon layer coating on the surface of BNNS was noticed in the case of Ar/C2H2F4 plasma. Furthermore, the plasma treatments made BNNS super-hydrophobic with a contact angle as high as 167.9 degrees compared to 118.2 degrees for the untreated BNNS. The wettability of the nanostructures, as measured form the water contact angle measurements, is discussed by referring to changes in surface chemistry and morphology after plasma treatment. The stability of BNNS at high temperatures, coupled with plasma treatment can make this material a potential candidate as super-hydrophobic coating for self-cleaning application at the industrial level.
    View publication