Spinel ZnCO2O4 Nanosheets - Modified Sinws as Photocatalyst for Degradation of Organic Pollutant
Synopsis
The photocatalytic degradation of azo dye RhB using spinel ZnCo2O4-modified silicon nanowires (ZnCo2O4/SiNWs) was investigated under visible light irradiation. Silicon nanowires (SiNWs) were elaborated by metal-assisted chemical etching and on which ZnCo2O4 was deposited by hydrothermal technique. The prepared samples were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS). The RhB photodegradation was monitored by UV-Vis spectrometry. It was revealed that ZnCo2O4/SiNWs exhibited higher phtocatalytic activity than unmodified SiNWs, and the phtocatalytic activity strongly depends on experimental parameters of SiNWs synthesis and ZnCo2O4deposition.
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