A visible-light-sensitive water splitting photocatalyst composed of Rh3+ in a 4d6 electronic configuration, Rh3+-doped ZnGa2O4.
Using the Rh(3+) ion (Rh d(6)) in a regular octahedral coordination, which forms fully occupied t(2g)(6) and empty e(g)(0) as a result of ligand-field splitting, we demonstrated that Rh-doped ZnGa(2)O(4) had midgap states created by t(2g)(6) and e(g)(0) that had suitable potentials to produce either hydrogen or oxygen in the presence of sacrificial agents under visible-light irradiation.
Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan.
Naoya
N
Kumagai
Lei
L
Ni
Hiroshi
H
Irie
D002384:Catalysis; D002412:Cations / Q000737:chemistry; D004583:Electrons; D005708:Gallium / Q000737:chemistry*; D008027:Light; D010777:Photochemistry; D012238:Rhodium / Q000737:chemistry*; D013997:Time Factors; D014867:Water / Q000737:chemistry*; D017967:Zinc Compounds / Q000737:chemistry*
D002412:Cations; D017967:Zinc Compounds; D014867:Water; C038863:gallium oxide; D005708:Gallium; D012238:Rhodium