Facile synthesis of ZnO–Ag nanocomposite and its photocatalytic activity

Dexterous Route for Synthesis of Hollow Spherical ZnO and ZnO‐Ag Nanocomposite with Superior Photocatalytic Ability

“…Thus the surface area had enhanced when compared with solid ZnO . This variation in morphology showed superior photocatalysis and optimum catalysis was achieved at a much lower percentage of Ag loaded on ZnO as compared to commercial ZnO …”

“…In this study instead of solid ZnO matrix, almost monodispered spherical ZnO having hollow morphology were used. Surface area was very important for the current material from the viewpoint of their applications in photocatalysis.…”

“…In our previous report the optimum photocatalysis was achieved in a sample having double amount of Ag nanoparticles. More to add the maximum degradation efficiency was only ∼ 56% . Thus the hollow morphology of the matrix oxide owing to its enhanced surface area helped to achieve superior photocatalysis.…”

“…This electron trapping phenomenon by Ag could effectively prolong the lifetime of photo generated electron-hole pairs and thus increase the photocatalytic activity. [68,69] In this study instead of solid ZnO matrix, [70] almost monodispered spherical ZnO having hollow morphology were used. Surface area was very important for the current material from the viewpoint of their applications in photocatalysis.…”

“…[71][72][73][74] This variation in morphology showed superior photocatalysis and optimum catalysis was achieved at a much lower percentage of Ag loaded on ZnO as compared to commercial ZnO. [70] In our experiment, the photocatalysis efficiency of hollow ZnO (oleic acid capped hollow ZnO) (Supporting Information SI-1) and hollow ZnOÀ Ag nanocomposites were investigated thoroughly for the degradation of methylene blue (MB). The intensity of the absorption peak of MB solution at 664 nm diminished gradually in the presence of hollow ZnO particles as well as ZnOÀ Ag nanocomposites, as the exposure time increased.…”