Abstract
Photocatalysts based on covalent triazine frameworks (CTFs) showcased excellent prospect in treating wastewater contaminated with organic compounds. However, effectively combining adsorption and degradation processes presents a significant hurdle for enhancing photocatalytic efficiency. This work focuses on the elegant design of an advanced photocatalyst based on sulfonated A-D-A-type CTFs, with enhanced photosynthesis of H2O2, and photodegradation efficiency of 99 % degradation of 10 ppm BPA in just 15 min and 25 ppm RhB in only 5 min. This enhancement can be ascribed to heightened photocurrent mobility, significant reduction in electrochemical impedance, narrowed band gap, and enhanced dispersibility compared to the non-sulfonated counterpart of the CTF-based photocatalyst. Mechanistic investigations suggested that the photodegradation of BPA and RhB are dominated by ·O2– and 1O2, respectively. This finding will provide a useful guide to the design of high-performance photocatalyst for wastewater remediation.
Published Version
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