A novel BiVO₃/SnO₂ step S-scheme nano-heterojunction for an enhanced visible light photocatalytic degradation of amaranth dye and hydrogen production

Abstract

The destruction of toxic pollutants and production of hydrogen gas on the surface of semiconductors under light irradiation is the main significance of photocatalysis.

H2-production and electron-transfer mechanism of a noble-metal-free WO3@ZnIn2S4 S-scheme heterojunction photocatalyst

“…[42][43][44][45] In general, oxide photocatalysts have a higher work function than sulde photocatalysts. [46][47][48] Owing to the work function difference, there would be electron transfer between ZnIn 2 S 4 and WO 3 , thus creating an IEF at their interfaces upon contact. In this case, the combination of ZnIn 2 S 4 with WO 3 would be expected to form a WO 3 @ZnIn 2 S 4 S-scheme heterojunction photocatalyst with efficient separation of charge carriers along with a stronger redox ability to stimulate the photocatalytic water splitting.…”

Facile Synthesis of gC3N4-Exfoliated BiFeO3 Nanocomposite: A Versatile and Efficient S-Scheme Photocatalyst for the Degradation of Various Textile Dyes and Antibiotics in Water

“…As the presence of IPA affected the reaction most, we have assumed that ● OH plays a major role in this photocatalysis reaction. The dominant role of ● OH in the S-Scheme pathway has also been established by several researchers by performing radical trapping experiments using different radical scavengers. ,,,− …”

Review: applications of the functional photocatalysts BiOX (X = Cl, Br, I) for clean energy, the environment, and future photobiorefineries

“…The S-scheme BiVO 3 / SnO 2 nano-heterojunction was investigated for H 2 evolution. 57 The nano-heterojunction was more stable than the pristine SnO 2 . The heterojunction strategy can be employed to achieve multifunctional hybrid photocatalytic materials.…”