| Issue |
Korean Journal of Chemical Engineering,
Vol.35, No.10, 2127-2132, 2018
Vol.35, No.10, 2127-2132, 2018
Photo-synthesized copper phenylacetylide nanobelts with preferential photocatalytic active facet exposure
We recently reported that PhC2Cu nanobelt exhibits excellent photocatalytic degradation of organic pollutants and activation of molecular O2. However, there has been no further research about the relationship between its crystal structure and photocatalytic activity. Herein, a new safe and energy-save method, photo-synthesis, to prepare PhC2Cu nanobelts with preferential active exposure facet was developed. It was used to study the relationship between its crystal structure and photocatalytic activity, compared to the PhC2Cu nanobelts prepared by thermal-synthesis method. The prepared samples were characterized by X-ray powder diffractometer (XRD), field-emission scanning electron microscopy (FE-SEM), ultraviolet-visible (UV-vis) absorbance spectra and diffuse reflectance spectra (UV-vis Abs and DRS), N2 adsorption-desorption isotherms, FT-IR and Raman spectra. The degradation of MB experiments under visible light irradiation shows that the photocatalytic activity of PhC2Cu prepared by photo-synthesis method is much higher than that by traditional thermal-synthesis method. Moreover, the photocatalytic mechanism of PhC2Cu nanobelts was further studied by the photocatalytic generation of O2 - · and .OH.
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