One-pot, ligand-free, room-temperature synthesis of Au/Pd/ZnO nanoclusters with ultra-low noble metal loading and synergistically improved photocatalytic performances

Abstract

Au/Pd/ZnO nanoclusters with ultra-low noble metal loadings were prepared by a one-step and ligand-free method at room temperature. The obtained Au/Pd/ZnO nanoclusters were composed of ZnO nanoclusters decorated with well-dispersed AuPd NPs with ultra-low noble metal loading.

Photocatalytic Gold Recovery from Industrial Gold Plating Effluent by ZnO Nanoparticles: Optimum Condition and Possible Applications

“…Regarding the light absorption capacity, the Au/ZC composite exhibited an absorption spectrum spanning the UV light region (λ < 390 nm) and visible light region, with a pronounced peak centered at 564 nm (Figure g). The UV light absorption of the Au/ZC sample originated from the absorption band edge of the ZnO nanostructure, while the absorption in the visible light region arose from surface plasmon resonance (LSPR) of Au NPs. − Concerning the recombination rate, the resulting Au/ZC sample exhibited a considerably reduced PL emission in comparison with that of the original ZC sample (Figure h). This outcome can be ascribed to the intrinsic property of metallic Au NPs, which act as efficient electron trappers, facilitating the unrestricted movement of electrons along their surface and/or between the CB and their Fermi level. , This characteristic enhances the separation efficiency of the electron–hole pairs.…”

Plasmonic Solar Energy Harvesting by ZnO Nanostructures and Their Composite Interfaces: A Review on Fundamentals, Recent Advances, and Applications

“…A simple room-temperature one-pot synthesis method without any ligand was adopted for synthesis where Au-Pd/ZnO nanocluster manifested high photocatalytic response and stability compared to pure ZnO counterparts. [174] 5. Fabrication of ZnO Plasmonic NSs…”

Ni loaded SnS2 hexagonal nanosheets for photocatalytic hydrogen generation via water splitting

“…Many researchers have reported that noble metal NPs, such as Au, Pt, Ag, Rh, Ni-Pt, Pd, Cu-Pd, and Au-Pd have been reported resulting in enhanced overall photocatalytic activity by enhancing the electron-hole charge separation. [61][62][63][64][65][66][67][68][69][70][71] In this regard, SnS 2 nanostructures were synthesized by hydrothermal method and were in situ decorated with Ni as a cocatalyst having different concentrations of Ni i.e., 1 mol%, 2.5 mol%, 5 mol%, and 10 mol% through a simple thermal reduction method. The detailed physico-chemical characterisation and inuence of Ni loading on SnS 2 towards its photocatalytic performance were investigated.…”

“…Many researchers have reported that noble metal NPs, such as Au, Pt, Ag, Rh, Ni-Pt, Pd, Cu-Pd, and Au-Pd have been reported resulting in enhanced overall photocatalytic activity by enhancing the electron–hole charge separation. 61–71…”