Naslov
Mechanochemical synthesis of zincite doped with cadmium in various amounts

Autori
Kurajica, Stanislav ; Mandić, Vilko ; Matijašić, Gordana ; Munda, Ivana Katarina ; Mužina, Katarina

Izvornik
Science and engineering of composite materials (0792-1233) 26 (2019), 1; 482-490

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Cd doped ZnO ; mechanochemical synthesis ; methylene blue ; photocatalyst ; solid solution

Sažetak
This work investigates the limit of Cd doping in ZnO derived by means of mechanochemical synthesis using CdCl2, ZnCl2 and Na2CO3 as precursors and NaCl as diluent. The prepared samples were characterized using X-ray diffraction (XRD), Fourier transformed infrared attenuated total reflectance (FTIR ATR) spectroscopy, UV-Vis diffuse reflectance spectroscopy(DRS), N2 adsorption-desorption isotherms, scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy(EDS), while photocatalytic efficiency has been evaluated for methylene blue degradation process. Zn for Cd replacement limits in the crystal lattice of ZnO derived via mechanochemical synthesis were found to be only 2%. For Cd present in a larger portion, CdO and CdCO3 phases appear. Cd doping limits in ZnO were not affected by the milling interval. However, it was observed that Cd doping impairs the nanocrystallinity of ZnO. The morphology and the electronic structure of ZnO and thus photocatalytic activity was inappreciably affected by the Cd doping.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo, Temeljne tehničke znanosti

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