Preparation and characterizations of Cu2O/reduced graphene oxide nanocomposites with high photo-catalytic performances

Solvothermal fabrication and enhanced visible light photocatalytic activity of Cu2O-reduced graphene oxide composite microspheres for photodegradation of Rhodamine B

“…Due to its extremely high theoretical specific surface area and excellent electron transport property, graphene oxide has attracted a lot of attention since discovery in 2004 [26][27][28][29]. Functionalized graphene oxide-based semiconductor photocatalysts have been a hot research area in recent years [30,31].…”

Alternative photocatalysts to TiO 2 for the photocatalytic reduction of CO 2

“…composite photocatalysts based on carbon (graphite, active carbon, black carbon fibers, carbon nanotubes, graphene and g-C 3 N 4 ), that usually contain compounds with semiconducting properties, has been expressed recently. In the large majority of the studies, their photocatalytic activity for the CO 2 reduction was evaluated during their reaction with H 2 O, via the oxidation of water molecules and the formation of free radicals CO 2 -* [139][140]. As far as the carbon-based 2D layered materials, such as graphene and g-C 3 N 4 , are concerned, it is evidenced that their supporting properties, their adsorption affinity for CO 2 , the light utilization and the graphene/ g-C 3 N 4 coupling determine their photocatalytic efficiency [39].…”

Synthesis of hierarchical RGO@Cu2O@Cu nanocomposites: optimization of photocatalytic degradation of Direct Orange 39 using a response surface methodology

“…where Y is the measured response of degradation efficiency, a 0 is the intercept term, a 1 , a 2 , and a 3 are regression coefficients for linear effects, a 12 , a 13 , and a 23 are the regression coefficients for logarithmic coefficient effects and a 11 , a 22 , and a 33 are quadratic coefficients. The coefficients for Eq.…”

“…Cu 2 O has been used for photodegradation of pollutants because of its low cost, high stability, low toxicity, and narrow band gap [20,21]. However, its photocatalytic usage in practical is limited because of the fast recombination of produced electron-hole pairs in semiconductor [22]. The presence of some metal elements may provide a pathway for capturing and storing photo-generated electrons [23].…”

“…The presence of some metal elements may provide a pathway for capturing and storing photo-generated electrons [23]. Recently, Cu 2 O@Cu hollow microspheres [24], flowerlike Cu 2 O@Cu [23], and core shell Cu 2 O@Cu nanocomposite [25] were synthesized by different methods such as one-pot synthesis [24], solvent thermal route [23] and co-deposition [22]. The appropriate supports such as the Abstract The RGO@Cu 2 O@Cu nanocomposites were prepared by hydrothermal method using ethylene glycol, copper acetate and graphene oxide.…”