SnFe ₂O ₄/ZnIn ₂S ₄/PVDF piezophotocatalyst with improved photocatalytic hydrogen production by synergetic effects of heterojunction and piezoelectricity

Abstract

The polarized electric field inside piezoelectric materials has been proved to be promising technique to boost the photogenerated charge separation. Herein, a novel flexible SnFe2O4/ZnIn2S4/PVDF (P-SZ) film

CuS Nanoparticles/MIL-125(Ti) Heterojunction as Photocatalyst for the Photodegradation of Tetracycline

“…Furthermore, the VB edge potential of MIL-125(Ti) was 3.95 eV and the CB edge potential of CuS was −0.41 eV calculated by the equation (eq ). The band rearrangement between MIL-125(Ti) and CuS boosted the directional migration of photogenerated electrons from CuS to MIL-125(Ti), realized the spatial separation of carriers, and effectively inhibited their recombination. α h v = A false( hv − E g ) n E NHE = E Ag / AgCl + 0.059 × pH − E Ag / AgCl 0 E g = E VH − E CH …”

A novel SnIn4S8/ZnFe2O4 S-scheme heterojunction with excellent magnetic properties and photocatalytic degradation activity for tetracycline

“…From this result, it can be found that when SIS and ZFO are in contact, the electrons flow from ZFO to SIS, which can further prove that there is a strong interaction between SIS and ZFO, which contributes to the separation and transfer of photoinduced electron–hole pairs. 26,27…”

Interfacial electric field construction of hollow PdS QDs/Zn1−xCdxS solid solution with enhanced photocatalytic hydrogen evolution

“…Sulfide metal semiconductors have gained prominence due to their excellent reduction performance and visible light response, attributed to their high potential and relatively narrow bandgap in the conduction band. For examples, CdS, 15–18 ZnIn 2 S 4 , 19–23 and ZnS 24,25 have been extensively employed in water splitting to produce hydrogen energy. CdS, a representative catalyst for PHE, necessitates sacrificial agents due to its low valence band position, resulting in wastage.…”