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Materials Science and Nanotechnology | Volume 2
May 21-22, 2018 | New York, USA
International Conference on
Nanoscience & Technology
I
-III/V-VI2 family ternary chalcogenides e.g. CuInSe2 (CISe),
AgInSe
2
(AISe), CuSbSe2 (CSbSe) etc. have attracted
attention because of properties such as, high absorption
coefficient, high photo stability and high solar cell conversion
efficiency. Ternary selenides have extensively studied for
various important energy applications such as, solar cells,
photonics and other electronic devices. However, there is
need toexplore someother areaswhere such semiconductors
can be effectively employed. The NIR absorption and small
band gap of ternary selenides has potential as photocatalyst
thus making them technologically more important.Ternary
chalcogenides are not so much explored as photocatalyst
for degradation of dyes. Present study therefore heighlights
the use of hybridized ternary selenide/TiO
2
nanostructured
materials as photocatalyst against Methylene blue (MB)
under long UV light (365 nm). Microwave method was
used for effective coupling between spherical CISe/AISe/
CSSe nanoparticles (NPs) and anatase TiO
2
NPs. The hybrid
photocatalysts were characterized by various advanced
analytical tools such as, UV-Visible spectroscopy, XRD,
TEM etc. The X-ray diffractions of hybrid nanomaterials
revealed effective hybridization while TEM showed surface
modification due to accumulation of TiO2 NPs over ternary
selenide NPs. The degradation of MB revealed maximum
efficiency of about ~89% for AISe/TiO
2
. The degradation
efficiency as well as degradation rate constant were found
to be significantly enhanced as compared to TiO
2
and
parent ternary selenides alone. The different intermediates
were identified by HPLC/MS which suggests formation of
environmental friendly oxidized products.
e:
anu_ksagar24@rediffmail.comMicrowave assisted hybridization of Ternary selenides with TiO
2
for enhancement in Phtocatalytic
degradation efficiency against Methylene Blue (MB)
Anuraj Kshirsagar
Defence Institute of Advanced Technology, India