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Photosynthesis of AgBr Doping TiO2 Nanoparticles and degradation of reactive red 120 dye

Zaid Hamid Mahmoud, Marwa Sabbar Falih, Omaima Emad Khalaf, Mohammed Alwan Farhan, Farah Kefah Ali


The nanocomposite of AgBr-TiO2 was prepared by a low temperature method (photolysis) with silver bromide and titanium chloride, and characterized using X-ray diffraction (XRD), energy dispersive spectra (EDS), transmission electron microscope (TEM), scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray photoelectron microscope (XPS). Their ability to degrade dye was examined using UV-Vis microscope. The results from XRD, SEM, TEM and AFM confirmed the formation of nanoparticles with a range of 10-25 nm, and the result from XPS and XRD confirmed existence of Ag metal after irradiation. The AgBr-TiO₂ showed high efficiency for degradation of azo dye (97%) in presence sunlight compared with TiO₂.

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