Manganese‐Assisted Carbon Nitride/Carbon Nanoribbons Heterojunction for Efficient Photocatalytic H 2 O 2 and H 2 Production

, respectively. The enhanced performance can be attributed to the enhanced charge separation and the regulation of electron reduction kinetics resulting from the construction of the heterojunction interface. Notably, the presence of Mn atoms introduces an additional impurity level, enabling precise control over the reduction selectivity of photogenerated electrons.