Plasmonic properties of an Ag@Ag₂Mo₂O₇ hybrid nanostructure easily designed by solid-state photodeposition from very thin Ag₂Mo₂O₇ nanowires

Abstract

A novel Ag@Ag2Mo2O7 plasmonic hybrid nanostructure was designed by a solid state photodeposition method from very thin Ag2Mo2O7 nanowires. The nanocomposite was demonstrated as an efficient SERS-active material by using the molecular probe 2,2′-bipyridine.

Reduction of silver ions in molybdates: elucidation of framework acidity as the factor controlling charge balance mechanisms in aqueous zinc-ion electrolyte

“…1Mo exhibits peaks at 873, 762, 354 and 279 cm À1 , which are in agreement within AE1 cm À1 to the known A 1g , 2T 2g and E g stretches respectively 52,53. m-2Mo has a major peak at 905 cm À1 with minor bands at 853, 828, 817, 760 and 694 cm À1 , which are in agreement within AE2 cm À1 to other data 43. We are not aware of other Raman spectroscopy data for t-2Mo, which our results nd a major peak at 913 cm À1 with minor bands at 864, 830, 662, 344 and 311 cm À1 .…”

“… 52,53 m-2Mo has a major peak at 905 cm −1 with minor bands at 853, 828, 817, 760 and 694 cm −1 , which are in agreement within ±2 cm −1 to other data. 43 We are not aware of other Raman spectroscopy data for t-2Mo, which our results find a major peak at 913 cm −1 with minor bands at 864, 830, 662, 344 and 311 cm −1 . Finally, 3Mo gives a major peak at 941 cm −1 with minor bands at 912, 869, 636, 598, 368, 314 and 202 cm −1 , which agrees with literature.…”

“…900 cm À1 indicate stronger Mo-O bonds,54 and by extension more acidic oxos. Our Raman data therefore conrms the expected trend MoO 4 2À < Mo 2 O 7 2À < Mo 3 O 10 2À for increasing acidity of the molybdate frameworks 43,55.…”

“…Our Raman data therefore confirms the expected trend MoO 4 2− < Mo 2 O 7 2− < Mo 3 O 10 2− for increasing acidity of the molybdate frameworks. 43,55 …”

Rodlike AgI/Ag2Mo2O7 Heterojunctions with Enhanced Visible-Light-Driven Photocatalytic Activity

“…Ag 2 Mo 2 O 7 , a new Ag–Mo–O material with a crystal structure linked as chains, was found to possess a narrower band gap of 2.65 eV and a higher optical absorption ability. , Ag 2 Mo 2 O 7 materials with various morphologies (such as nanowires, − nanoparticles, flower-like, broom-like microstructures, and microrods − ) have been reported. Nevertheless, there are only a few studies on Ag 2 Mo 2 O 7 -based heterojunctions such as AgO/Ag 2 Mo 2 O 7 , g-C 3 N 4 /m-Ag 2 Mo 2 O 7 , Ag 2 Mo 2 O 7 @AgBr–Ag, and Ag 3 PO 4 /Ag/Ag 2 Mo 2 O 7 …”