The boosted photocatalytic activity over perylene diimide modified Bi2O4 hybrid photocatalyst with internal electric field

Construction of a flower-like S-scheme Bi2WO6/BiOCl nano-heterojunction with enhanced visible-light photocatalytic properties

“…Normally, the smaller the arc radii of the EIS spectra, the lower the charge transfer resistance of the electrode and vice versa . 56 The arc radii of Bi 2 WO 6 /BiOCl-3 is smaller than that of pure Bi 2 WO 6 and BiOCl, indicating reduced charge transport resistance in the Bi 2 WO 6 /BiOCl-3 nano-heterojunction. Moreover, we estimated the charge transfer resistance ( R ct ) of the catalysts by simulating the conditions of the electrode–electrolyte system on the ZView2 software, and the R ct of Bi 2 WO 6 , BiOCl and Bi 2 WO 6 /BiOCl-3 catalysts are 4.573 Ω, 3.288 Ω and 0.60096 Ω.…”

ZnSnO3 Quantum Dot/Perylene Diimide Supramolecular Nanorod Heterojunction Photocatalyst for Efficient Phenol Degradation

“…Moreover, the peak at 531.94 eV of the composite is derived from the surface hydroxyl groups (531.85 eV) of ZnSnO 3 QDs and C–OH (531.95 eV) in the carboxyl group of PDI supramolecular nanorods. The highest binding energy located at 533.22 eV of the composite was assigned to the OC–O of PDI supramolecular nanorods. ,,, …”

“…The highest binding energy located at 533.22 eV of the composite was assigned to the O� C−O of PDI supramolecular nanorods. 2,26,28,29 Owing to the carboxyl side chain for the PDI molecular unit, the surface electrical property of as-prepared PDI supramolecular nanorods was revealed to be negative with a zeta potential value of −27.8 mV. This makes it an ideal host for robustly accommodating ultrasmall QDs with a positive zeta potential.…”

Recent progress in perylene diimide supermolecule-based photocatalysts

“…In this case, again, an effective approach to address these limitations is to make heterojunctions by combining PDIs with bismuth-based photocatalysts. Currently, several heterojunctions have been reported between PDIs and bismuth-based semiconductors, including PDIs/BiVO 4 , 41 PDIs/Bi 2 W 2 O 6 , 42,43 PDIs/Bi 2 O 4 , 44 PDIs/BiOBr/Bi 4 O 5 Br 2 , 45 and PDIs/BiOX (X = Cl, Br, I). 28,45,46 For example, Ji et al 47 developed a novel type II heterojunction of aky-like BiOCl/PDIs by adjusting the selfassembly time of PDIs.…”