In this work, nanocomposite materials based on zinc oxide, silver, and tin (ZnO-(Sn/Ag)) were manufactured, characterized, and utilized as electrocatalysts for the Acid Orange 7 (AO7) dye. Introducing Ag and Sn ions into ZnO reduces the crystal size ( \(\:D\) ), the average grain size, and the bandgap energy \(\:\left({E}_{\text{g}}\right)\) . Moreover, it was observed that incorporating Ag and Sn into ZnO leads to improvement in the absorbance and average electrical conductivity. For instance, the \(\:\sigma\:\) value of pure ZnO is \(\:1.4\times\:{10}^{-2}\) \(\:\text{S}.\text{c}{\text{m}}^{-1}\) while for ZnO-(Ag/Sn) is \(\:1.3\times\:{10}^{-1}\) \(\:\text{S}.\text{c}{\text{m}}^{-1}\) . On the other hand, the AO7 spectra were analyzed under various electrochemical reaction times using ZnO-(Ag/Sn) NCs. The degradation efficiency of ZnO and ZnO-(Ag/Sn) NCs was found to be 84% and 99%, with first-order kinetic constants (k1) of 0.086 min−1 and 0.04 min−1, respectively. As noticed, the degradation of AO7 under electrochemical reaction using ZnO-(Ag/Sn) NCs is faster than the ZnO sample, and the kinetics of degradation under the reaction agreed with the first-order reaction. The ZnO-(Sn/Ag) NCs are attractive for photo-electrocatalyst applications and could also be employed in antibacterial applications.
