Publication: Photocatalytic Behavior of Supported Copper Double Salt: The Role of Graphene Oxide
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2022-05-12
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Hindawi Limited
Abstract
The design of a photocatalyst that may work efficiently with sunlight is a fundamental concern to fight against environmental
pollution and electrochemical hydrogen storage devices. In this work, it has been found that the green microwave-assisted
decoration of graphene by copper double salt (DS) enhances visible sunlight photocatalysis efficiency. Nanohybrids of
graphene oxide decorated with Cu(I) and Cu(II) oxides and copper hydroxy nitrate double salt were selected as photocatalysts
for the degradation of rhodamine B in aqueous solution to study the effect of the graphene oxide support. The
photodegradation process followed a pseudo–first-order kinetics for the bare catalysts, but the supported catalysts were best
fitted to the Langmuir-Hinshelwood model. Supported systems were more efficient in terms of turnover and apparent rate
constants. Diffuse reflectance spectroscopy with the use of Kubelka-Munk function allowed to measure bandgap energies. It
was found that the absorption edge was reduced about 30% for the supported systems.
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Bibliographic citation
Shabestari, M. E., Baselga, J., & Martin, O. (2022). Photocatalytic Behavior of Supported Copper Double Salt: The Role of Graphene Oxide. In R. Comparelli (Ed.), Journal of Chemistry (Vol. 2022, pp. 1–9). Hindawi Limited.