Enhanced photocatalytic performance of N-doped RGO-FeWO4/Fe3O4 ternary nanocomposite in environmental applications

Bi-Containing n-FeWO4 Thin Films Provide the Largest Photovoltage and Highest Stability for a Sub-2 eV Band Gap Photoanode

“…Similar band gap energies for FeWO 4 have been reported with nanocrystal samples, 11 but larger band gap energies up to 2.7 eV have also been reported. [12][13][14] The external quantum efficiency (EQE, also referred to as the incident photon to current efficiency) from the CAs at 1.23 V vs RHE is plotted in Figure 2b, revealing photoactivity with the 2.07 eV LED, just above the band gap energy, and higher EQE from 3% to 6% at higher photon energies. Direct comparison to other ~2 eV band gap metal oxides is enabled by our previous identification of several copper vanadate photoanodes, 3,15 and Figure S3 demonstrates that Fe 0.56 W 0.38 Bi 0.06 O z provides a 10-fold improvement in EQE with 2.4 eV illumination.…”

A porous graphene–NiFe2O4nanocomposite with high electrochemical performance and high cycling stability for energy storage applications

“…7). 1,33 The Raman spectra of the 10 PGNF composite show the Raman signatures of the D band at . The intensity of the D band for the 10 PGNF composite is somewhat higher than that of the G band suggesting that a good amount of defect sites is introduced in the composite sample.…”

Rhodium doping augments photocatalytic activity of barium titanate: effect of electronic structure engineering

“…[3][4][5][6] Among oxides, multi-cation oxides such as tungstates, titanates, and vanadates are a convenient choice as they can provide multiple sites for doping. [7][8][9][10] It is well known that SrTiO 3 , a perovskite material, has been extensively studied for photocatalysis in degradation of methylene blue (MB) dye by tuning its band gap via doping, but only a few reports exist on BaTiO 3 . [11][12][13][14][15] BaTiO 3 is a versatile material with a highly tunable crystal and electronic structure and has the potential of being a multifunctional material.…”