In most polymer photocatalysts, omission of the platinum co-catalyst leads to a significant drop of the rate of hydrogen evolution (e.g., by more than 37% for similarly performant systems). Using TT-TAB as the photocatalyst without platinum, we observe a drop in the rate of hydrogen evolution by only 14% (from 113.9 to 97.9 mmol h -1 g -1 , Error! Reference source not found.C).