Abstract
CuGaS2(CGS) is effectively synthesized by a one-step solid-phase sintering method. The conduction band maximum, valence band maximum and flat band potential of the obtained CGS are −1.14, 1.21 and 0.33 V vs RHE, respectively. When the Cu to Ga atom ratio is 1: 1.4 in the raw material, the prepared CuGaS2 exhibits the highest visible-light (λ˃420 nm) H2 production activity. The hydrogen production rate of CuGaS2 reaches 1.12 mmol g−1 h−1 under visible-light radiation. When Ruthenium is loaded as cocatalyst, the H2 production rate of CuGaS2@Ru is promoted to 3.38 mmol g−1 h−1. At the same, the interior component of photo-induced carries transfer among photoharvestor and cocatalyst has been revealed. This research provides a facile strategy to fabricate CuGaS2 with excellent photocatalytic performance for H2 production.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
