Outward conversion of core–shell nanostructured ZnS microspheres to mesoporous ZnO ones

Novel ZnO–ZnS nanowire arrays with heterostructures and enhanced photocatalytic properties

“…28 It is a well-known luminescent material, having prominent applications in flat-panel displays, electroluminescent devices, sensors, and lasers, and has also been applied in photocatalysts, infrared windows, pigments, and nonlinear optical devices. 29,30 ZnO-ZnS heterostructures have become of prime importance because of the lower photoexcitation threshold energy and improved electron transfer paths. 31,32 Both theoretical calculations and experimental results have demonstrated that ZnO-ZnS heterostructures exhibited higher photocatalytic efficiencies for the degradation of several dye pollutants in both acidic and basic media than the individual components due to their type-II band alignments.…”

Facile synthesis of novel hierarchical hollow ZnO microspheres

“…[1][2][3][4][5] Though considerable ZnO structures have been developed by various methods, hierarchical hollow ZnO structures have attracted great attention recently. 1,6 Hierarchical micro-/nanostructures are mentioned as the higher dimension structures composed of low dimensional nano-building blocks. 7,8 As an important category of micro-/ nanostructures, hollow micro-/nanostructures have the advantage of refractive index tunability, lower density, large active area for catalysis and ability to withstand cyclic changes in volume.…”

A well-designed three-dimensional ternary hierarchical co-axial ZnO@ZnS heteroarchitecture decorated electrospun carbon hollow tube nanofibrous mat: improved ultraviolet-light photocatalytic performance

“…After the hydrothermal sulfidation reaction with TAA, besides those of the ZnO carbon hollow tube nanofibers, characteristic diffraction peaks corresponding to face-centered cubic ZnS (111), ( 220) and (311) are observed, verifying the formation of ZnO@ZnS core-shell heterostructures. 18,24,35,[42][43][44]46,51,52 Furthermore, the relative intensity of ZnO diffraction peaks, especially those of the (100), (002) and (101) planes, clearly reduces as compared with the XRD pattern related to the ternary ZnO@ZnS/C hollow mats, showing more ZnO particles in this typical analyzed sample, mainly those at the surface have been transformed to ZnS nanoparticles. An obvious broadening of the diffraction peaks was observed, indicating that ZnS is formed by small crystalline grains when compared with ZnO, as it is displayed in inset of Fig.…”