Au@Cu2O core@shell nanocrystals as dual-functional catalysts for sustainable environmental applications

A Novel Au@Cu2O-Ag Ternary Nanocomposite with Highly Efficient Catalytic Performance: Towards Rapid Reduction of Methyl Orange Under Dark Condition

“…With the increase of the Cu 2 O thickness, the redshift of SPR peak becomes more obvious, and the SPR peak intensity becomes weaker. A possible explanation is that Cu 2 O shells have larger refractive index compared to that of the solvent [26]. Apart from the SPR peak, it is found that there is a blueshift in the wavelength centered at 406-432 nm for Au@Cu 2 O NCs compared with the absorption peak of pure Cu 2 O nanocrystals due to the interband transition in Cu 2 O and the scattering of Cu 2 O shells [47].…”

“…A large number of pure Au nanocrystals without Cu 2 O shells are observed, as depicted in Figure 2e,f. This is most probably because Au nanocrystals reach the supersaturation point so that there is not enough number of Cu 2+ ions in the reaction system to form the Cu 2 O shells on the surfaces of Au nanocrystals [26].…”

“…In order to address this problem, it has been proposed to embed Au nanocrystals into specific shell matrices to form core-shell nanostructures. This not only avoids the chemical corrosion of Au nanocrystals to some extent, but also ensures that most of Au nanocrystals can take part in catalytic reaction as much as possible [26]. Noble metal-semiconductor core-shell structured NCs keep respective properties of individual components, while presenting novel properties owing to the synergistic interfacial interaction between noble metal and semiconductor [27][28][29][30].…”

Polyurethane-Supported Graphene Oxide Foam Functionalized with Carbon Dots and TiO2 Particles for Photocatalytic Degradation of Dyes

“…Due to increasing environmental problems currently, a lot of studies have been performed to develop new materials to control environmental pollution, especially the high performance purification of polluted water and air [1][2][3][4][5]. It is well known that the removal of pollutants from water and air systems could be achieved by several physical and chemical processes including physical adsorption, chemical oxidation, electrocatalysis, and photocatalysis [6][7][8], among these methods, the photocatalysis strategy shows high potential due to its advantages, such as pollution-free, clean, safe, economic, and high-efficient properties. Therefore, the environmental treatment through photocatalysis degradation of pollutants has attracted more and more interests in recent years.…”

Preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts

“…Fenton reagent for degradation of various organic pollutants and pathogens. 10,11 Depending on the activity of the catalyst used, photo-Fenton catalytic degradation methods have been demonstrated to be one of the most innovative, green and efficient alternative treatments of organic wastewater. Numerous studies have reported on photo-Fenton reagents for dealing with different organic pollutants in batch experiments.…”