The two-and three-chamber, linear, high voltage (200-300 V) and limited current (120-280 A) plasma generators (PGs) have been designed and manufactured by us for application in surface engineering. The operating and thermal characteristics (TC) of PGs, along with the distribution of w local plasma flow velocity (m s −1 ) w f plasma jet mean velocity (m s −1 ) ρ gas density (kg m −3 ) η PG efficiency σ electrical conductivity ( −1 m −1 )
Herein, photothermal
modification of nanocomposite films consisting
of hydrated vanadium pentoxide (V
2
O
5
·
n
H
2
O) nanoribbons wrapped with graphene oxide
(GO) flakes was performed via 405 nm direct laser irradiation. The
combination of X-ray diffraction, X-ray photoelectron spectroscopy,
Raman scattering, transmission electron microscopy, and scanning electron
microscopy allowed comprehensive characterization of physical and
chemical changes of GO/V
2
O
5
·
n
H
2
O nanocomposite films upon photothermal modification.
The modified nanocomposite films exhibited porous surface morphology
(17.27 m
2
g
–1
) consisting of randomly
distributed pillarlike protrusions. The photothermal modification
process of GO/V
2
O
5
·
n
H
2
O enhanced the electrical conductivity of nanocomposite from
1.6 to 6.8 S/m. It was also determined that the direct laser irradiation
of GO/V
2
O
5
·
n
H
2
O resulted in considerable decrease of C–O bounds as well
as O–H functional groups with an increase of the laser power
density.
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