Voltammetry for Sensing Applications

Electrochemical, Sensing and Environmental Assessments of CuFe2O4/ZnO Nanocomposites Synthesized via Azadirachta Indica Plant Extract

Author(s): B. S. Surendra*, N. Raghavendra, H. P. Nagaswarupa*, T. R. Shashi Shekhar and S. C. Prashantha

Pp: 215-229 (15)

DOI: 10.2174/9789815039719122010010

* (Excluding Mailing and Handling)


The CuFe2O4/ZnO nanocomposite (CZO NCs) has been successfully
synthesized by a facile one-pot green assisted approach using Azadirachtaindica
extract. These synthesized nanocomposites were characterized by different techniques;
Powder X-ray diffractometer (PXRD) confirms the formation of nanocrystalline
composite material with crystallite size in the range 15-30 nm. The surface morphology
of prepared nanocomposite materials was changed due to the plant extraction action as
reducing and capping agent studied by Scanning electron microscope (SEM), which
shows porous and spongy like structure. The photocatalytic performance of CZO NCs
was examined for their potential role in the photodegradation of Methylene Blue (MB)
dye under UV light. The result shows that the 1:2 molar CZO NCs is suitable for
excellent photocatalytic degradation performance of MB dye (98%). Electrochemical
analysis of prepared material was conducted with graphite electrode paste in 0.1 M KCl
electrolyte, which showed excellent performance in redox potential measured by Cyclic
Voltammetry and extended their sensor activities towards chemical and bio-chemicals
(Paracetamol and Glucose). These studies open a new platform to utilize a simple
approach for the preparation of multifunctional CZO NCs for their potential
applications in wastewater treatment and electrochemical studies.

Keywords: CuFe2O4/ZnO, Cyclic Voltammetry, Green combustion, Photocatalysis, Sensor, Wastewater treatment.

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