Abstract
The present manuscript describes the formation of oxide based nanocomposite of copper and iron oxide (CuFeO2NCNPs) nanoparticles. The nanocomposite nanoparticles (NCNPs) were processed via solution process with copper nitrate hexahydrate, iron nitrate nonhydrate and sodium hydroxide as a reducing agent. The chemicals were utilized to form a uniform solution and it refluxed at ∼80 °C for 60 min for the formation of CuFeO2NCNPs and analyzed well with various techniques. It reveals that the NCNPs are in range of 45–50 nm in size with clear spherical shaped morphology with good chemical characteristics. These NCNPs were utilized for to check their sensing performance against phenol, which is a hazardous chemical compound for the environment and human body analysed with glassy carbon electrode (GCE). The electrochemical observations were conducted with cyclic voltammetry (CV) from very low to high concentration range (7.8 μM–1000 μM in PBS) of phenol; effect of scan was analyzed from 5 to 100 mV/s with CuFeO2NCNPs/GCE electrode. The modified sensors reproducibly and sustainability were also identified for a longer period in presence of Phenol (62.5 μM). Based on the results and their discussion a possible mechanism was also presented.
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•The CuFeO2 nanocomposite NPs were prepared via solution process.•NPs were characterized via XRD, SEM, TEM, FTIR and CV spectroscopy.•The CuFeO2 nanocomposite NPs was utilized for sensing against phenol.•Effect of concentration, scan rate and cycle response were studied against phenol.•Mechanism explained for the sensing of phenol with CuFeO2 nanocomposite NPs.