Rational construction of CuFe2O4@C/Cd0.9Zn0.1S S-scheme heterojunction photocatalyst for extraordinary photothermal-assisted photocatalytic H2 evolution

A series of four-substituted polyoxometalate-thiacalix[4]arene-based materials for the efficient photocatalytic reduction of Cr(vi)

“…49 The flat band ( E FB ) positions of 1–3 were determined to be −0.94, −0.85, and −0.61 V vs. SCE, and −0.70, −0.61, and −0.37 V vs. NHE, respectively. Generally, for most n-type semiconductors, the conduction band ( E CB ) position is more negative than E FB by 0.1 V. 50 Consequently, their E CB positions were estimated to be about −0.80, −0.71, and −0.47 V vs. NHE, respectively. Notably, this result was consistent with that obtained from UV–vis DRS and VB-XPS.…”