Factors affecting bismuth vanadate photoelectrochemical performance
نویسندگان
چکیده
Beckman Institute and Division of Chemist Institute of Technology, Pasadena, Californ edu † Electronic supplementary informatio photoanode performances; experimental FTO-glass photoanodes; statistics of aspect-ratio-normalised diameter distrib FTO-glass photoanodes; effect of iodi solubility of metal salts in the spin-coat of electrodeposited BiVO4 without sulte spectrum; SEM images of FTO on glas 10.1039/c4mh00156g Cite this: Mater. Horiz., 2015, 2, 330
منابع مشابه
Photocharged BiVO4 photoanodes for improved solar water splitting
Bismuth vanadate (BiVO4) is a promising semiconductor material for the production of solar fuels via photoelectrochemical water splitting, however, it suffers from substantial recombination losses that limit its performance to well below its theoretical maximum. Here we demonstrate for the first time that the photoelectrochemical (PEC) performance of BiVO4 photoanodes can be dramatically improv...
متن کاملSimultaneous enhancements in photon absorption and charge transport of bismuth vanadate photoanodes for solar water splitting
n-Type bismuth vanadate has been identified as one of the most promising photoanodes for use in a water-splitting photoelectrochemical cell. The major limitation of BiVO4 is its relatively wide bandgap (∼2.5 eV), which fundamentally limits its solar-to-hydrogen conversion efficiency. Here we show that annealing nanoporous bismuth vanadate electrodes at 350 °C under nitrogen flow can result in n...
متن کاملPhotodegradation process for the removal of acid orange 10 using titanium dioxide and bismuth vanadate from aqueous solution
In this study, the photocatalytic degradation of azo-dye acid orange 10 was investigated using titanium dioxide catalyst suspension, irradiation with ultraviolet-C lamp and bismuth vanadate under visible light of light-emitting diode lamp. Response surface methodology was successfully employed to optimize the treatment of acid orange 10 dye and assess the interactive terms of four factors. The ...
متن کاملReactive Sputtering of Bismuth Vanadate Photoanodes for Solar Water Splitting
Bismuth vanadate (BiVO4) has attracted increasing attention as a photoanode for photoelectrochemical (PEC) water splitting. It has a band gap in the visible light range (2.4−2.5 eV) and a valence band position suitable for driving water oxidation under illumination. While a number of methods have been used to make BiVO4 photoanodes, scalable thin film deposition has remained relatively underexp...
متن کاملEnhanced photoelectrochemical water oxidation on bismuth vanadate by electrodeposition of amorphous titanium dioxide.
n-BiVO4 is a promising semiconductor material for photoelectrochemical water oxidation. Although most thin-film syntheses yield discontinuous BiVO4 layers, back reduction of photo-oxidized products on the conductive substrate has never been considered as a possible energy loss mechanism in the material. We report that a 15 s electrodeposition of amorphous TiO2 (a-TiO2) on W:BiVO4/F:SnO2 blocks ...
متن کامل