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

Inquiring the photocatalytic activity of cuprous oxide nanoparticles synthesized by a green route on methylene blue dye

“…According to the JCPDS card no. 78-2076, both the patterns can be indexed as face-centered cubic structure [9][10][11][12]. Before adsorption of MB dye solution, the characteristic peaks (Fig.…”

“…Before adsorption of MB dye solution, the characteristic peaks (Fig. 3a) as observed at 2h values of 29.3, 36.8, 42.3, 61.4, 73.5, and 77.6 are assigned to the crystal planes of (110), (111), (200), (220), (311), and (222) of crystalline Cu 2 O, respectively [9][10][11][12]. Form the most intense (111) peak, the crystallite size of Cu 2 O NPs before and after MB adsorption is found to be 8.8 and 9.3 nm, respectively.…”

“…Presently a variety of physical, chemical, and biological methods were available for the treatment of dye contaminated water. From an extensive literature study, we concluded that a chemical method such as adsorption process is an economical and efficient route for elimination of toxic dyes from polluted water [9][10][11][12]. In this regards, various low-cost adsorbents such as fly ash, metal sulfides (Ag 2 S), and metal oxides (titania TiO 2 , cuprous oxide Cu 2 O) have already been tested to treat polluted water [4,[9][10][11][12][13].…”

“…To develop diverse architectures of Cu 2 O, the various methods widely used includes hydrothermal method, microemulsion method, surfactantassisted route, and wet chemical method [10][11][12][14][15][16]. Sun et al [9] have reported an enhanced photocatalytic activity for Cu 2 O-graphene oxide (GO) nanocomposite synthesized via solvothermal route towards Rhodamine B (RhB) dye. They reported that more than 65 % RhB was degraded within 80 min of visible light irradiation.…”

Reusable, Free‐Standing MoS2/rGO/Cu2O Ternary Composite Films for Fast and Highly Efficient Sunlight Driven Photocatalytic Degradation

“…In terms of CuO based compounds, Li et al. synthesized MoS 2 @CuO heterostructure nanoflowers by two‐step hydrothermal method which exhibited 96 % of MB degradation in 100 min of UV‐Vis light irradiation . This binary component structure without any conductive network suffers from longer duration of degradation and low rate of kinetics compared to other reported ternary composites.…”