Abstract
Polyoxometalate (POM)-pillared Zn-Cr layered double hydroxides (LDHs) exhibited high photocatalytic activities in CO(2) reduction and H(2)O oxidation reactions. For CO(2) reduction in pure water, the CO production was 1.17 μmol g(-1) after a 24 h reaction. For O(2) evolution in NaIO(3) solution, the O(2) production reached 148.1 μmol g(-1) after a 6 hour reaction. A mechanism study indicated that the electron transfer from Zn-Cr LDHs to POMs (SiW(12)O(40)(4-)) promoted photocatalytic activities.