An easy, one-step synthesis of Cu2O-reduced graphene composites (Cu2O-rGO) was developed using a simple sonochemical route without any surfactants or templates. The morphology and structure of the Cu2O-rGO composites were characterised using techniques such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The results indicated that the Cu2O sphere is approximately 200 nm in diameter and composed of small Cu2O particles approximately 20 nm in diameter. The morphology and composition of the Cu2O-rGO composites could be well controlled by simply changing the mole ratio of the reactants under ultrasonic irradiation. The Cu2O-rGO composites displayed better photocatalytic performance for the degradation of methyl orange (MO) than pure Cu2O spheres, which may have potential applications in water treatment, sensors, and energy storage.
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Efficient removal of 2,2',4,4'-tetrabromodiphenyl ether with a Z-scheme CuO-(rGO-TiO) photocatalyst under sunlight irradiation.
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Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, China; School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangzhou, 510006, China; Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou, 510006, China. Electronic address:
Z-scheme CuO-(rGO-TiO) photocatalyst was successfully synthesized via a simple three-step approach for 2,2',4,4'-tretrabromodiphenyl ether (BDE47) reductive removal under simulated solar irradiation. Unlike the traditional heterojunction, the addition of reduced graphene oxide (rGO) enhanced the redox ability of CuO-TiO by increasing charge transfer. When modifying CuO films by adding 1% rGO and coating with 70% TiO, the resulting CuO-(rGO-TiO) exhibited the best photocatalytic activity for BDE47 removal.
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Reduced graphene oxide (rGO)-based Cu2O nanocomposites were prepared by a facile one-pot reaction process. The surface morphology, structure and chemical composition of Cu2O-rGO nanocomposites were characterized by transmission electron microscopy, X-ray photoelectron spectroscopy and X-ray diffraction. The Cu2O-rGO modified Pt rotating ring-disk electrode (RRDE) was successfully fabricated for the photoelectrocatalytic analysis of hydroquinone (HQ).
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State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China; College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, PR China.
An easy, one-step synthesis of Cu2O-reduced graphene composites (Cu2O-rGO) was developed using a simple sonochemical route without any surfactants or templates. The morphology and structure of the Cu2O-rGO composites were characterised using techniques such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The results indicated that the Cu2O sphere is approximately 200 nm in diameter and composed of small Cu2O particles approximately 20 nm in diameter.
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