Zero-emission multivalorization of light alcohols with self-separable pure H2 fuel

摘要: Abstract To reach Paris Agreement’s target of 1.5 °C global temperature increase by 2100, low emission strategies are crucial. In synthetic chemistry, the phototransformation light alcohols (methanol, ethanol and iso-propanol) into hydrogen fuel chemicals promises high potential utility value for industry. However, this process is often practiced using promoters (i.e. water, acid or base), with several issues remained unsolved, e.g. water promoter induce CO2 emission; acid/base restrict catalyst selection, lead to complicated product purification cost increase. work, we report solar-driven promoter-free multivalorization self-separable gas/fuel liquid without COx based on two-dimensional (2D) SnS/g-C3N4 heterojunction. The production efficiency reaches 1.27 mmol.g−1. h−1 ∼ 95 % recoverability. reduction occurs via a sequence redox reactions, combination disproportionation, as confirmed from experimental analysis. This work demonstrates effectiveness 2D heterojunctions promoter-free, zero-emission alcohol phototransformations.