One-dimensional ternary Ag@Ag2S@C nanocable with plasmon-enhanced photocatalytic performance

Photocatalytic Reduction of Aromatic Nitro Compounds with Ag/AgxS Composites under Visible Light Irradiation

“…They proposed that the construction of double Z -scheme heterojunction reduced the recombination of electrons and holes and improved the separation efficiency of electron, as well as Ag 2 S and Ag 2 O broadened the photoresponse range to a wide spectrum, and then improved the photocatalytic efficiency . In addition, the ternary Ag@Ag 2 S@C nanocable was reported to exhibit superior photocatalytic performance under the visible light irradiation . Recently, Ag–Ag 2 S hybrid composites with the combination of light-absorbing semiconductor Ag 2 S and electron-transfer metal Ag were found to have high efficient photocatalytic activity. − The electrons in the conduction band (CB) of Ag 2 S transfer easily into Ag metal nanoparticles through the Schottky barrier due to the greater work function of metallic Ag (4.26 eV) and its higher Fermi energy level CB potential (0.4 eV) compared to that (0.2 eV) of Ag 2 S. − The electron transfer from Ag 2 S to Ag is faster than the recombination of electrons on CB and holes on VB of Ag 2 S; , thus the combination of Ag 2 S and Ag results in a high photocatalytic activity.…”

“…In addition, the ternary Ag@Ag 2 S@C nanocable was reported to exhibit superior photocatalytic performance under the visible light irradiation . Recently, Ag–Ag 2 S hybrid composites with the combination of light-absorbing semiconductor Ag 2 S and electron-transfer metal Ag were found to have high efficient photocatalytic activity. − The electrons in the conduction band (CB) of Ag 2 S transfer easily into Ag metal nanoparticles through the Schottky barrier due to the greater work function of metallic Ag (4.26 eV) and its higher Fermi energy level CB potential (0.4 eV) compared to that (0.2 eV) of Ag 2 S. − The electron transfer from Ag 2 S to Ag is faster than the recombination of electrons on CB and holes on VB of Ag 2 S; , thus the combination of Ag 2 S and Ag results in a high photocatalytic activity. For example, nonstoichiometric Ag 2 S/Ag-TBD with heteronanostructures was reported to exhibit a high photocatalytic hydrogen production performance due to the presence of nonstoichiometric silver sulfide (Ag 1.96 S) and the combination of Ag x S and Ag could improve the charge separation .…”

Plasmon-Enhanced Photocatalysis Based on Plasmonic Nanoparticles for Energy and Environmental Solutions: A Review

“…Wa et al 49 described the production of a one-dimensional ternary Ag@Ag 2 S@C nano cable with enhanced photocatalytic performance for the degradation of MB in the visible light. The synthesis process of the composite is illustrated in Figure 5a, and also both Ag 2 S and hydrothermal carbon (HTC) were able to contribute to the electron transfer across Ag nanowires with a diameter of 75−100 nm and thickness of 5−8 nm.…”

“…Wa et al . described the production of a one-dimensional ternary Ag@Ag 2 S@C nano cable with enhanced photocatalytic performance for the degradation of MB in the visible light.…”

“…(b) The UV–visible absorption spectrum of the prepared samples and the suggested mechanism for the photodegradation of organics using the prepared Ag@Ag 2 S@C heterostructure. Reproduced with permission from ref . Copyright 2021 Elsevier.…”