Gemechu Lemessa

Synthesis and Characterization of Co-doped Nickel-ZnO/Polypyrrole Nano-composites, and Their Effect on Photo-catalytic Degradation of P-nitrophenol under Solar Irradiation

Gemechu Lemessa, Dunkana Negussa & P. S. Bedi · International Research Journal of Pure and Applied Chemistry · 2018

Nickel-polypyrrole co-modified ZnO nano-composites (Ni-ZnO/Ppy) were synthesized by two methods, metal impregnation of nickel (Ni) and In-situ chemical polymerization of polypyrrole (Ppy) on ZnO nano-particles. The crystal size, band gap energy and bond structure of as-synthesize...

Open access Research Article 10.9734/IRJPAC/2018/45731

Detection of Methylene Blue from textile by Differential Pulse Voltammetry Using Cobalt Hexacyanoferrate Modified Carbon Paste Electrode

Chala Boru & Gemechu Lemessa · Chemical Science International Journal · 2018

Modified carbon paste electrode (CPE) by cobalt hexacyanoferrate (CoHCF) was prepared and the sensitivity of the prepared electrode was analyzed by differential pulse voltammetry. The electrochemical behavior of methylene blue on cobalt hexacyanoferrate modified carbon paste elec...

Open access Research Article 10.9734/CSJI/2018/45825