Rational design of robust catalysts for enhanced photocatalytic hydrogen peroxide production and value-added chemical synthesis

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Figure 1.
(a) Synthesis of a triphenyl triazine thiazole COF (TTT-COF) from triphenyl triazine imine COF (TTI-COF) via the post-cyclization reaction. (b) Left: Schematic illustration of the structural advantages of the homologous heteropolyaromatic COF (TTT-COF). Right: Calculated electron localization functions (ELF) diagrams of the TTI-COF and TTT-COF. (c) The adsorption energy of the TTI-COF and TTT-COF with oxygen-containing intermediates. (d) Long-term photocatalytic H₂O₂ production of the TTT-COF (the inset shows the yield of H₂O₂ production per day over an eight-day period). (e) Cycle experiment of aerobic oxidation of ethylbenzene along with the TTT-COF as the photocatalyst. (f) Proposed mechanism for the aerobic oxidation of C(sp³)-H bonds^[4].