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.com
November 13-15, 2017 | Las Vegas, USA
14
th
International Conference and Exhibition on
Materials Science and Engineering
RRJOMS | Volume 5 | Issue 7 | November, 2017
The improved photoelectrochemical properties using
α
-hematite -molybdenum disulfide nanostructured
material
Hussein Alrobei
and
Manoj K Ram
University of South Florida, USA
T
he alpha (α)- hematite (Fe
2
O
3
) nanomaterials are attractive due its optical, electrical, and photoelectrochemical (PEC) properties.
Several transition metal ions (Ti, Al, Pt, Zn etc.) have been doped to enhance low conductivity, surface kinetic, carrier diffusion,
and decreasing of the photocorrosion. However, little attention is paid to dope dichalcogenide 2D- molybdenum disulfide (MoS
2
)
with α-Fe
2
O
3
. The MoS
2
has shown interesting photo-activity due to its bonding, chemical composition and doping properties. So,
we have synthesized nanocomposite α-Fe
2
O
3
-MoS
2
using sol-gel technique. The α-Fe
2
O
3
- MoS
2
nanomaterial was characterized
using combination of physical techniques such as SEM, X-ray diffraction, UV-vis, FTIR and Raman techniques, respectively.
The photocurrent, electrode/electrolyte interface of α-Fe
2
O
3
-MoS
2
nanocomposite films were investigated using electrochemical
techniques. The rhombohedral structure with lower band gap is obtained using X-ray diffraction and UV-vis measurements for
α-Fe
2
O
3
-MoS
2
films. Besides, α-Fe
2
O
3
-MoS
2
film revealed improved hydrogen production compared to α-Fe
2
O
3
as well as aluminum
doped α-Fe
2
O
3
nanostructured films. Later, mechanism of photoelectrochemical water splitting in nanocomposite α-Fe
2
O
3
-MoS
2
films is understood through band diagram.
Biography
Hussein Alrobei is a Ph.D student under the supervision of Manoj K Ram. He has background in the field of photoelectrochemical, advanced materials, polymers and energy.
He has been involved on photoelectrochemical properties on various metal oxides, polymers and conducting polymers, and recently his patent on nano-hybrid structured
regioregular polyhexylthiophene blend films for production of photoelectrochemical energy has been approved.
alrobei@mail.usf.eduHussein Alrobei et al., Res. Rev. J Mat. Sci. 2017, 5:7
DOI: 10.4172/2321-6212-C1-011