Improving the crystallinity of imine-linked covalent organic frameworks by acetal for enhanced photocatalytic H₂O₂evolution

Abstract

The crystallinity of semiconductors plays a vital role in boosting the separation and transportation of photogenerated carriers and its photocatalytic performance. However, organic semiconductors have relatively low crystallinity as compared...

Covalent organic framework based photocatalysts for efficient visible-light driven hydrogen peroxide production

“…Interestingly, the TFA-TaPt-COF-E synthesized in the presence of ethanol exhibited higher crystallinity together with a red-shift in the absorption edge and lower photoluminescence (PL) intensity, thus leading to significantly improved photocatalytic activity. 36…”

Advancements in controlling COFs structure for enhanced crystallization properties and self-generated photocatalytic hydrogen peroxide

“…Recent studies have seen researchers employing diverse strategies aimed at augmenting material crystallinity to maximize H 2 O 2 yield. For instance, Yan and colleagues 23 successfully boosted the crystallinity of imine COF by incorporating ethanol as a moderator to diminish the nucleation reaction rate. X-ray diffraction (XRD) analysis revealed a notable increase in the (100) peak intensities and sharpening of peak profiles upon ethanol addition, indicating optimized crystallinity (Fig.…”