Activating the (101) facets of Cu₂WS₄ in the CdS/Cu₂WS₄ S-scheme heterojunction to enhance the photocatalytic hydrogen evolution activity

Abstract

Due to the synergistic effect of (101) crystal surface activation and S-scheme heterojunction, the CdS/Cu2WS4 heterojunction exhibits surprisingly high hydrogen evolution activity.

Understanding the charge transfer dynamics of the Cu2WS4–CNT–FeOOH ternary composite for photo-electrochemical studies

“…While E VB = E CB + E g , where E VB and E CB are the valence band (VB) and conduction band potential and E g is the band gap. 46,47 The valence band position of Cu 2 WS 4 calculated using a band gap of 1.7 eV is 1.53 eV vs. NHE. The values of E VB and E CB have been represented with respect to the vacuum in Scheme 2.…”