A series of SubPcs comprising a carboxylic acid anchoring group at the peripheral (SubPcs 1, 2) or axial position (SubPc 3) were synthesized and used as sensitizers for photocatalytic H₂ production, for the first time. SubPc 3/TiO₂ shows the best photocatalytic activity with a hydrogen evolution rate of 1396 μmol h⁻¹, which is much higher than that of SubPcs 1 and 2 (771 and 658 μmol g⁻¹, respectively). This work clearly shows that considering their optical and redox properties, SubPcs are promising candidates for light-driven water splitting systems.

中文翻译：

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亚酞菁敏化的TiO2光催化剂用于光电化学和光催化制氢。

包括：在所述外围设备的羧酸锚固基团（SubPcs一系列SubPcs的1，2（SubPc）或轴向位置3）的合成，并用作敏化剂的光催化ħ ₂生产，为第一次。SubPc 3 / TiO ₂显示出最佳的光催化活性，氢释放速率为1396μmolh ^-1，远高于SubPcs 1和SubPcs 2（分别为771和658μmolg ^-1）。这项工作清楚地表明，考虑到它们的光学和氧化还原特性，SubPcs是光驱动水分解系统的有希望的候选者。