Zinc oxide and manganese doped Zinc oxide nanoparticles: The photodegradation of cresols under visible-light irradiation by ZnO nanoparticles

This book consists of synthesis and characterization of ZnO and Mn-doped ZnO ‎nanoparticles for photocatalyst process. The work contains synthesis (co- precipitation), ‎Characterization (TEM, SEM, EDX, FTIR, XRD, BET, UV-visible NIR) and ‎application of ZnO and Mn-doped ZnO nanoparticles. The application included ‎photodegradation of m-, o- and p-cresol that was carried out under UV and visible ‎irradiation at room temperature, atmospheric pressure, and different PH by batch ‎photoreactors. The intermediates were identified by UPLC and mineralization was ‎confirmed by TOC measurement. As a result, 1%wt Mn-doped ZnO with lower ‎particles size, higher surface area, high cresols adsorption, lower agglomerate, ‎appropriate band gap and higher photodegradation ability than other % of Mn-doped ‎ZnO is the best photocatalyst that may enhance the photocatalyst activity of ZnO ‎under visible light.‎