SIZE DETERMINATION OF NICKEL OXIDE NANOPARTICLES BY ELECTROCHEMICAL REDUCTION METHOD AND ITS ANTIBACTERIAL ACTIVITY
Ashwini A. Agale, Nitin R. Dighore, Sonali M. Janjal, Suresh T.Gaikwad, Anjali S. Rajbhoj*
ABSTRACT
Nickel oxide nanoparticles were synthesized by electrochemical
reduction method using tetra butyl ammonium bromide (TBAB) and
tetra octyl ammonium bromide (TOAB) as structure directing agents in
an organic medium viz. tetra hydro furan (THF) and acetonitrile
(ACN) in 1:4 ratio by optimizing current density 10mA/cm2. The
reduction process takes place over a period of 2 hrs. Such nanoparticles
were prepared using simple electrolysis cell in which the sacrificial
anode is commercially available nickel metal sheet and platinum
(inert) sheet acts as a cathode. As the length of stabilizer increases the
size of nanoparticles decreases. The parameters current density was
also used to control the size of nanoparticles. The synthesized nickel
oxide nanoparticles were characterized by FT-IR, UV, XRD, SEM–
EDS and TEM. Antibacterial activity of synthesized nanoparticles reveal that the nickel
nanoparticles showed good antibacterial activity.
Keywords: Electrochemical cell, Tetra octyl ammonium bromide, Tetra butyl ammonium bromide, nickel oxide nanoparticles, antibacterial study.
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