Advanced chemical compositions and nanoarchitectures of bismuth based complex oxides for solar photocatalytic application

Abstract

Bismuth based complex oxide photocatalysts with high activity and stability could be obtained by engineering chemical compositions, morphologies, and microstructures.

Scale‐Up of BiVO4 Photoanode for Water Splitting in a Photoelectrochemical Cell: Issues and Challenges

“…[8,11] Fore xample,d oping with metal ions was used to changet he intrinsic electrical and opticalp roperties of BiVO 4 , [12] its introduction into an OER catalyst was targeted at boosting the water-splitting kinetics. [13] It is noteworthy that the state-of-the-art performance reports of BiVO 4 photoanodes were obtained for small areas of anodes,t ypically on the order of 2cm 2 on fluorine-doped tin oxide (FTO) glass.…”

Hybrid Density Functional Study on Mono‐ and Codoped NaNbO3 for Visible‐Light Photocatalysis

“…In recent years, more and more efforts have been paid to study hydrogen storage, photocatalytic decomposition of water into hydrogen and oxygen, and the photocatalytic decomposition of toxic substances by using semiconductors due to their potential applications in the hydrogen energy industry and in the elimination of environmental pollutants . One of the most important requirements for any photocatalyst for water splitting is that it must have appropriate band positions, that is, the valence band maximum (VBM) and conduction band minimum (CBM) must straddle the hydrogen evolution potential (HEP) and oxygen evolution potential (OEP) .…”

Tungsten-based nanomaterials (WO 3 & Bi 2 WO 6 ): Modifications related to charge carrier transfer mechanisms and photocatalytic applications

“…The VB of Bi 2 WO 6 consists of O 2p and Bi 6p with a small contribution from Bi 6s hybrid orbitals, and the bottom of CB is formed by W 5d orbitals with a minor contribution from Bi 6p orbitals. The hybridization of Bi 6s and O 2p levels causes the VB to become largely dispersed, that favors the mobility of photoinduced holes and promotes the oxidative reactions[196][197][198][199][200][201][202]. Also, Bi 2 WO 6 is also very useful in the selective organic synthesis (like aerobic oxidation of benzylic alcohols to and glycerol to dihydroxyacetone under visible light) in water and for…”