Simple preparation of WO3–ZnO composites with UV–Vis photocatalytic activity and energy storage ability

Efficient photocatalytic degradation of methylene blue by heterostructured ZnO–RGO/RuO2 nanocomposite under the simulated sunlight irradiation

“…Therefore, to enhance the photocatalytic efficiency and stability, it is of crucial importance to suppress the recombination of electron-hole pairs of ZnO. This can be done by either modifying the surface of ZnO nanostructures or with a focus on parameters such as doping transition metal ions, deposition of metals, and formation of core-shell nanostructures with other lower band gap semiconductors [4][5][6]. These composite nanostructures may modify the electronic energy band structure of ZnO and provide a large interfacial area for the rapid charge carrier separation/injection and improved charge carrier transport resulting enhanced photocatalytic activity [7].…”

Enhancing the photocatalytic activity of ZnO nanoparticles for efficient rhodamine B degradation by functionalised graphene nanoplatelets

“…Composite materials based on ZnO nanoparticles have been extensively explored to enhance ZnO efficiency in photocatalysis by loading with metal ions [2][3][4], coupling with other metal oxides [5][6][7] and combining with carbonaceous materials [8]. Graphene has shown outstanding performance in these applications due to its intrinsic electron delocalisation, which promotes electron transport between the composite photocatalyst and the pollutant molecules [9], and its excellent charge separation ability [10].…”

Facile synthesis of WO3 nanorods/g-C3N4 composites with enhanced photocatalytic activity

“…However, pure WO 3 is not an efficient photocatalyst, and the photocatalytic activity of pure WO 3 is very low because of the rapid recombination of photo-generated charge carriers and the relatively low conductive band level of WO 3 [36,37]. Therefore, many attempts have been made to improve the photocatalytic activity of WO 3 , such as modified with noble metals [38][39][40] and coupling with other semiconductors [41][42][43][44]. Recently, WO 3 /g-C 3 N 4 composites are considered to be a promising candidate for efficient photocatalytic activity under visible light irradiation [45][46][47].…”