Enhanced photocatalytic activity of CuO–SiO2 nanocomposite based on a new Cu nanocomplex

kakhki, Roya Mohammadzadeh; Ahsani, Fatemeh; Mir, Noshin

doi:10.1007/s10854-016-5279-6

Cited by 8 publications

(1 citation statement)

References 20 publications

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“…CuO is a p-type semiconductor material with a narrow band gap of ~ 1.2-1.5 eV [11,12]. Beside the development of CuO photocatalyst, the study of supporting material, SiO 2 combined to them is also carried out [13]. The chemically inert mesoporous siliceous (SiO 2 ) materials are often employed as a support because they possess high specific surface area, large pore volume, excellent thermal stability and are transparent to UV radiation.…”

Section: Introductionmentioning

confidence: 99%

CuO/SiO2 modified amine functionalized reduced graphene oxide with enhanced photocatalytic and electrochemical properties

et al. 2018

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Graphene, an ideal two dimensional material, has attracted much attention due to its unique structural and physicochemical properties. Herein, we report synthesis of CuO/SiO 2 modified amine functionalized reduced graphene oxide (rGO) and its excellent potentialities in environmental remediation and energy storage application. The structure, purity, functional groups and morphology of as-prepared CuO/SiO 2 :rGO nanocomposites were characterized by XRD, FTIR, FESEM and TEM. The catalytic activity of the CuO/SiO 2 :rGO in different ratios was evaluated by degradation of methylene blue (MB) under visible light condition. The CuO/SiO 2 :rGO (mass ratio 1:3) exhibits high catalytic activity with 99% degradation of 20 ppm MB in 7 min. CuO/SiO 2 :rGO nanocomposites (1:3) also demonstrate good electrochemical performance with specific capacitance of 235 F g −1 , which is about fivefold higher than CuO nanoparticles. The nanocomposite (1:3) also reveals excellent cycling stability at 4 A g −1 for 1000 cycles and the capacitance retention was found to be 95% after 1000 cycles. These results validate that the development of a new class of composite necessitates the proper loading of metal oxide and GO to be used for energy and environmental applications.

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Section: Introductionmentioning

confidence: 99%