PROJECT TITLE :
CuO Nanoparticles Intermixed With Chemically Modified Multiwalled Carbon Nanotubes as a Novel Electrode for Cu2+ Ion Determination
A novel carbon paste electrode (CPE) was fabricated using two-methoxy-half dozen-(((3-(trimethoxysilyl) propyl) imino) methyl) phenol chemically bonded to multiwalled carbon nanotubes (MMSPIMP–MWCNTs) followed by intermixing with CuO nanoparticles, sodium tetraphenylborate (NaTPB), graphite powder, and Nujol oil. The MMSPIMP–MWCNT was characterized by Fourier remodel-infrared spectro- scopy (FT-IR) and other applicable techniques. The influences of variables, as well as the amounts of NaTPB, changed MWCNT, CuO nanoparticles, graphite powder, and Nujol oil on the electrode response, were studied and optimized. Optimum composition of carbon paste was found to be a combination of one hundred twenty-mg Nujol with graphite powder: NaTPB—carrier with the mass (milligram) ratio of 150:nine:60. So, the applied recipe for the construction of CPE, significantly enhanced its selectivity and sensitivity to Cu2+ ions over a wide concentration range of $4.09times ten^mathrm mathbf -8-1times ten^mathrm mathbf -2$ mol $mathrmL^mathrm mathbf -1$ with detection limit of $1.6times ten^mathrm mathbf -8$ mol $mathrmL^mathrm mathbf -1$ and a Nernstian slope of 29.56 ± 0.56 mV/decade of Cu2+ concentration. The electrode response is freelance of pH in the vary of three.five–five.five with response time <20 s. The potentiometric selectivity coefficients of the proposed Cu2+ ion, CPE, show its moderate selectivity for Cu2+ ion toward alternative metal ions. The MMSPIMP-MWCNT was found to be a suitable neutral carrier for the construction of a carbon paste electrode for the determin- tion of Cu2+ ion in resolution. Finally, from sensible point of view, this electrode was successfully applied for the determination of Cu2+ ions content in real water sample.
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