Suppression of hole injection from Ce4+ and Fe(CN)3−6 at p-Type semiconductors by illumination

Substitution Effects of In3+ by Al3+ and Ga3+ on the Photocatalytic and Structural Properties of the Bi2InNbO7 Photocatalyst

“…The O 2 evolution reaction was performed in an aqueous cerium sulfate tetrahydrate solution and only the following stoichiometric reaction occurred: 4Ce 4+ + 2H 2 O → 4Ce 3+ + O 2 + 4H + . The aqueous Ce(SO 4 ) 2 solution is more stable than aqueous silver nitrate under UV irradiation since photodeposition of Ce 3+ did not occur after illumination . However, the reaction, 2NO 3 - → 2NO 2 - + O 2 , might occur in an aqueous AgNO 3 solution under UV irradiation since NO 3 - is unstable, excepting the reaction, 4Ag + + 2H 2 O → 4Ag 0 + O 2 + 4H + .…”

“…The photocatalytic reaction was performed in an aqueous CH 3 OH/H 2 O solution (1.0 g powder catalyst, 50 mL CH 3 OH, 350 mL H 2 O, and 0.1 wt % Pt (Pt-loading instead of a H 2 PtCl 4 )) . O 2 evolution was performed in an aqueous cerium sulfate tetrahydrate solution (1.0 g powder catalyst, 1.0 m mol Ce(SO 4 ) 2 , 400 mL H 2 O), since that solution is more stable than an aqueous silver nitrate under UV irradiation …”