Ag–Ag2S hybrid nanoplates with unique heterostructures: Facile synthesis and photocatalytic application

One-step green synthesis of 2D Ag-dendrite-embedded biopolymer hydrogel beads as a catalytic reactor

“…1(f) confirm the crystallinity of the Ag dendrite; the measured lattice spacing of 0.25 nm corresponds to the 1/3{422} reflection that is generally forbidden for a face-centered cubic lattice. 42 This forbidden reflection has been previously observed for Ag nanostructures in the form of thin plates. 43 The inset in Fig.…”

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

“…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 .…”

High-yield synthesis and hybridizations of Cu microplates for catalytic applications

“…These results indicate that the photocatalytic degradation of MB follows a pseudo-first-order kinetic equation: ln( C 0 / C t ) = K app t , where K app is the apparent rate constant. 33 The K app for Cu@Cu 2 S hybrid microplates was determined to be 0.0162 min −1 , which is substantially greater than that of the pure Cu microplates (0.0006 min −1 ).…”

“…[26][27][28][29][30][31][32] However, metal-semiconductor or bimetallic hybrid nanostructures have been more efficiently synthesized by the selective chemical conversion of only a portion of the preformed metal nanostructures or by their replacement with other metal atoms. [32][33][34][35][36][37][38][39] Most of these reactions proceed on the surface of the preformed metal nanostructures, and the converted or replaced materials coat the metal nanostructures' surface. Successfully adapting these strategies to Cu nanocrystals would enable the synthesis of Cu-based hybrid nanostructures with excellent stability and with outstanding synergistic properties that arise between the two components.…”