One-step SDS-assisted hydrothermal synthesis and photoelectrochemical study of Ag₄V₂O₇nanorods decorated with Ag nanoparticles

Abstract

Ag/Ag4V2O7 nanocomposites with Ag nanoparticles supported on Ag4V2O7 nanorods have been synthesized with the assistance of sodium dodecyl sulfate (abbreviated to SDS) by a facile one-step hydrothermal reaction and perform high photoelectrochemical response. Ag4V2O7 nanorods are pointed at both ends with an average width of ca. 200 nm. Ag nanoparticles are formed in-situ on the surfaces of the Ag4V2O7 nanorods. The crystal structures and morphologies of samples are affected significantly by the SDS concentration and hydrothermal reaction time. The possible crystal growth process of Ag/Ag4V2O7 nanocomposites induced by SDS has been discussed preliminarily.

Ce Doped Germanium Dioxide Nanowires and Solar Light Photocatalytic Performance

“…A small amount of irregular particles also cling to the nanowires. In general, SDS acts as the structure-directing agent for the formation of 1D nanoscale materials with different compositions [18,19]. The effect of SDS in the formation of the Ce doped germanium dioxide nanowires has been investigated.…”

An All‐Solid‐State Z‐Scheme g‐C3N4/Ag/Ag3VO4 Photocatalyst with Enhanced Visible‐Light Photocatalytic Performance

“…The composites showed greatly enhanced visible‐light photocatalytic activity for the degradation of RhB owing to a synergistic effect at the interface of N‐doped ZnO and g‐C 3 N 4 . Very recently, silver vanadium oxides such as Ag 3 VO 4 , Ag 4 V 2 O 7 , and AgVO 3 were studied as photocatalysts for environmental purification , . They are usually combined with other components to improve photocatalytic activity.…”

Disclosing the electronic structure and optical properties of Ag4V2O7crystals: experimental and theoretical insights

“…Among the reported silver vanadates, silver pyrovanadate (Ag 4 V 2 O 7 ) has drawn extensive interest in the field of photocatalysis 6,7,10 . Various techniques, such as mechanochemical reactions 22 , oxide mixture or solid-state reaction 2 , precipitation with calcination at long times 2 , and molten metal fluxes 23 have been reported.…”

“…In addition, the final product is obtained with some deleterious phases, such as V 2 O 5 , amorphous AgVO 3 , Ag 3 VO 4 , and Ag 2 O, with inhomogeneous sizes and shapes. To avoid these drawbacks, several synthetic routes have recently been developed and employed in the preparation of Ag 4 V 2 O 7 micro and nanocrystals 10,24 , and pure Ag 4 V 2 O 7 crystals have been obtained through several wet chemistry-based techniques, such as conventional and surfactant-assisted hydrothermal syntheses 5,7,9,25 or microemulsions 26 . These methods circumvent the problems encountered in earlier synthetic methods and facilitate the synthesis of single phase crystals with homogeneous sizes and shapes.…”

“…have attracted increasing attention due to their widespread potential applications resulting from their special optical, electronic, and chemical properties [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] . The excellent properties of silver vanadates can be attributed to the flexibility of their geometric structure, in which Ag and V ions can adopt different local coordinations, as well as the electronic properties associated to the hybridization of the valence bands of the V 3d, O 2p, and Ag 4d orbitals, yielding a narrow band gap and highly dispersed valence bands [19][20][21] .…”