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Abstract

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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